Rate Evaluation (in ChemKin Format)

#

Reaction

A
(cm3-mol-s units)

n

E
 (cal/mol)

Uncertainty Factor

Source /Reference

Comments

1

H+O2=O+OH

1.04E+14

0

15310

1.15

HDB11    

The recent expression of Hong et al (2011) was used, which considers their measurements and the considerable number of good literature values.

2

O+H2=H+OH

3.82E+12

0

7950

1.6

BBC05    

Dual rate constant expressions and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005); Arrhenius expressions are added, and dominate at low and high temperatures respectively.

3

O+H2=H+OH

8.79E+14

0

19180

1.6

BBC05    

See above.

4

OH+H2=H+H2O

2.16E+08

1.51

3437

1.2

MS88, LDH13    

The expression of Michael and Sutherland (1988) represents their high temperature experimental results and a review of the literature data.  Very similar to the BBC05 recommendation. The uncertainty value is taken from LDH13.

5

2OH=O+H2O

3.35E+04

2.42

-1928

1.4

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

6

H2+M=2H+M

4.58E+19

-1.4

104390

3

TS86, CW83    

Rate constant expression and uncertainty from the evaluation of Tsang & Hampson (1986), originating from the review by Cohen and Westberg (1983).

 

H2/2.5/ H2O/12./ CO/1.9/ CO2/3.8/ AR/0.0/ HE/0.0/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

LZK04, GRIMech    

Relative efficiencies are taken from the mechanism and evaluation of Li et al. (2004).  For larger molecules without data, the generic GRIMech values were used.

7

H2+AR=2H+AR

5.84E+18

-1.1

104390

2

TH86, CW83    

Rate constant expression and uncertainty from the evaluation of Tsang & Hampson (1986), originating from the review by Cohen and Westberg (1983).

8

H2+HE=2H+HE

5.84E+18

-1.1

104390

2

LZK04

Assume He rate same as Ar

9

2O+M=O2+M

6.16E+15

-0.5

0

3

TH86    

Rate constant expression and uncertainty from the evaluation of Tsang & Hampson (1986).

 

H2/2.5/ H2O/12./ CO/1.9/ CO2/3.8/ AR/0.0/ HE/0.0/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

LZK04, GRIMech    

Relative efficiencies are taken from the mechanism and evaluation of Li et al. (2004).  For larger molecules without data, the generic GRIMech values were used.

10

2O+AR=O2+AR

1.89E+13

0

-1788

3

TH86

Rate constant expression and uncertainty from the evaluation of Tsang & Hampson (1986).

11

2O+HE=O2+HE

1.89E+13

0

-1788

3

LZK04

Assume He rate same as Ar

12

O+H+M=OH+M

4.71E+18

-1

0

5

TH86

Rate constant expression and uncertainty estimated in the evaluation of Tsang & Hampson (1986).

 

H2/2.5/ H2O/12./ CO/1.9/ CO2/3.8/ AR/.75/ HE/.75/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

LZK04    

Relative efficiencies are taken from the mechanism and evaluation of Li et al. (2004).  For larger molecules without data, the generic GRIMech values were used.

13

H2O+M=H+OH+M

6.06E+27

-3.322

120800

3.2

SM06    

Rate constant expression from Srinivasan & Michael (2006), who measured decomposition for Ar and H2O bath gas, and also considered reverse recombination data.  (BBC05 recommendation is slower)

 

H2/3./ CO/1.9/ CO2/3.8/ O2/ N2/2./ HE/1.1/ H2O/0.0/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

SM06, GRIMech     

Recommended relative efficiencies from SM06 were used, with generic GRIMech values for missing colliders.

14

H2O+H2O=H+OH+H2O

1.01E+26

-2.44

120200

3.2

SM06    

Rate constant expression from Srinivasan & Michael (2006), who measured decomposition for Ar and H2O bath gas, and also considered reverse recombination data.  (BBC05 recommendation is slower)

15

H+O2(+M)=HO2(+M)

4.65E+12

0.44

0

2

Tr00 

The falloff parameter and theoretical high pressure limit rate expression is from Troe (2000). 

 

LOW

6.37E+20

-1.72

525

2

BCJ12, MSS02  

The low pressure limit expression and relative efficiencies are from the mechanism and review of Burke et al. (2012) for N2, taken from the measurements and analysis of Michael et al. (2002).  Hydrocarbon efficiencies are from GRIMech.  The CO2 efficiency is a recent revision.

 

TROE          0.5

30

90000

90000

 

 

 

 

H2/2./ H2O/14./ CO/1.9/ CO2/2.88/ O2/.78/ AR/.67/ HE/.8/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

16

HO2+H=H2+O2

3.68E+06

2.087

-1455

2

MSH00    

Rate expression from an ab initio calculation of the equilibrium reverse reaction from Michael et al (2000) consistent with room temperature data and their shock tube results for H2 + O2.

17

HO2+H=2OH

7.08E+13

0

300

2

MKY99    

Rate constant expression from the reanalysis and evaluation of Mueller et al. (1999), which gives a lower activation energy (and high temperature rate extrapolation) than TH86 or BBC05.

18

HO2+H=O+H2O

1.45E+12

0

0

3

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

19

HO2+O=OH+O2

1.63E+13

0

-445

3

BBC05

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

20

HO2+OH=H2O+O2

7.00E+12

0

-1093

1.6

HLS13

Rate constant expressions and uncertainties taken from the study and review by Hong et al. (2013), and represent low and high temperature mechanisms respectively.

21

HO2+OH=H2O+O2

4.50E+14

0

10930

1.35

HLS13

Rate constant expressions and uncertainties taken from the study and review by Hong et al. (2013), and represent low and high temperature mechanisms respectively.  High temperature measurements were made in this work.

22

2HO2=H2O2+O2

1.94E+11

0

-1409

1.5

KLT02

Rate constant expressions and uncertainties taken from the study and review by Kappel et al. (2002), and represent low and high temperature mechanisms respectively.

23

2HO2=H2O2+O2

1.03E+14

0

11040

2

KLT02

Rate constant expressions and uncertainties taken from the study and review by Kappel et al. (2002), and represent low and high temperature mechanisms respectively.  High temperature rate determinations were made in this work, as well as HLS13 which supports these rate expressions.

24

H2O2(+M)=2OH(+M)

2.00E+12

0.9

48750

2.5

Tr11    

Rate constant and falloff expressions from the analysis, review, and recommendations for Troe (2011) in Ar.  Relative efficiencies also from Troe (2011), with some extra values from GRIMech.  The Fc value is that for Ar.

 

LOW

2.49E+24

-2.3

48750

 

 

 

 

TROE          0.58

30

90000

90000

 

 

 

 

H2O/7.5/ H2O2/7.7/ CO2/1.6/ O2/1.2/ H2/3.7/ N2/1.5/ HE/.65/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

25

H2O2+H=OH+H2O

2.41E+13

0

3970

2

TH86    

Rate constant expression from the review and evaluation of Tsang & Hampson (1986).

26

H2O2+H=HO2+H2

4.82E+13

0

7950

2

TH86    

Rate constant expression from the review and evaluation of Tsang & Hampson (1986).

27

H2O2+O=OH+HO2

9.63E+06

2

3970

3

TH86    

Rate constant expression and uncertainty estimate from the review and evaluation of Tsang & Hampson (1986).

28

H2O2+OH=H2O+HO2

1.74E+12

0

318

2

HCD10    

Rate constant expressions and uncertainties taken from the study and review by Hong et al. (2010), and represent low and high temperature mechanisms respectively.

29

H2O2+OH=H2O+HO2

7.59E+13

0

7270

1.3

HCD10    

Rate constant expressions and uncertainties taken from the study and review by Hong et al. (2010), and represent low and high temperature mechanisms respectively.  High temperature measurements were made in this work.

30

CO+O(+M)=CO2(+M)

1.80E+10

0

2430

10

Troe75    

Rate constant expressions taken from the review by Troe (1975) for this spin-forbidden reaction.  Lindemann falloff (Fc=1) was assumed.  Low pressure limit rates based on analysis of CO2 decomposition data.  High pressure value is an estimate, and recent theoretical calculations (JD13) indicate a faster rate. 

 

LOW

1.40E+21

-2.1

5500

 

 

 

 

H2/2.5/ H2O/12./ CO/1.9/ CO2/3.8/ AR/.87/ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

LZK07    

Relative efficiencies are taken from the mechanism and evaluation of Li et al. (2004).  For larger molecules without data, the generic GRIMech values were used.

31

CO+O2=O+CO2

2.53E+12

0

47700

10

TH86    

Rate constant expression from the evaluation of Tsang and Hampson (1986), taken from an earlier review by Baulch.  We adopted a larger uncertainty.

32

CO+OH=H+CO2

7.05E+04

2.053

-356

1.2

JW06

Rate constant expressions from the analysis of available data by Joshi & Wang (2006).  The 2 expressions added reflect reaction at higher and lower temperatures respectively.

33

CO+OH=H+CO2

5.76E+12

-0.664

332

1.5

JW06

Rate constant expressions from the analysis of available data by Joshi & Wang (2006).  The 2 expressions added reflect reaction at higher and lower temperatures respectively.

34

CO+HO2=OH+CO2

1.57E+05

2.18

17944

2

YWG07    

Rate constant expression and uncertainty estimate from the theoretical calculations of You et al (2007), which agree with the mechanism values used by Mueller et al (MYD99).  Several other expressions and data are faster.

35

HCO+M=H+CO+M

4.80E+17

-1.2

17734

1.7

FHD02    

Rate constant expression is from RRKM calculations by Friedrichs et al. (2002) which fit their shock tube decomposition data in Ar near 1000K.  Relative efficiencies are from GRIMech for this reaction.

 

CO/1.5/ CO2/2./ H2O/12./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

36

HCO+H=H2+CO

9.03E+13

0

0

2.5

BBC05    

Rate constant expression from the combustion chemistry review and evaluation of Baulch et al.(2005)

37

HCO+O=OH+CO

3.01E+13

0

0

2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

38

HCO+O=H+CO2

3.01E+13

0

0

2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

39

HCO+OH=H2O+CO

1.08E+14

0

0

2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

40

HCO+O2=HO2+CO

7.83E+10

0.521

-521

2

Kl11    

Rate constant expression is that recommended by Klippenstein (2011) based on theoretical calculations adjusted upward by 1.3 to roughly match the measured rates of DeSain et al. (DJH01).  These lie near the mean of scattered experimental data.

41

C+OH=H+CO

5.00E+13

0

0

3

GRIMech    

An estimate from GMK(1986) used in GRIMech.

42

C+O2=O+CO

6.62E+13

0

636

2

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

43

CH+H=C+H2

1.10E+14

0

0

1.5

DDK91    

Rate constant from Dean et al. (1991) determined from high temperature measurements of the reverse rate.

44

CH+O=H+CO

5.70E+13

0

0

3.2

MCF80     

Rate constant from the room temperature measurement of Messing et al. (1980).

45

CH+OH=H+HCO

3.00E+13

0

0

3

GRIMech    

An estimate from GMK(1986) used in GRIMech.

46

CH+H2=H+CH2

1.75E+14

0

3320

3

BBC05    

Rate constant expression from the combustion chemistry review and evaluation of Baulch et al.(2005)

47

CH+H2(+M)=CH3(+M)

5.13E+13

0.15

0

2

BBC05    

Rate constant expression, pressure dependence, and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005).  Fc is a refit from their expression.  Relative collider efficiencies are from GRIMech.   

 

LOW

2.43E+22

-1.6

0

 

 

 

 

TROE          0.514

152

22850

10350

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

48

CH+H2O=H+CH2O

3.43E+12

0

-884

3

ZFL88, BPP99    

Rate constant expression is the result of an average from these 2 temperature dependent studies.

49

CH+O2=O+HCO

1.84E+08

1.43

1200

1.6

BBC05  

Baulch et al (2005) recommend a higher rate for high temperatures.  Our adopted expression is a fit to their 2 values and ranges.  Product branch is also from Baulch.

50

CH+O2=CO2+H

2.77E+08

1.43

1200

1.6

BBC05  

See above.

51

CH+O2=CO+OH

1.84E+08

1.43

1200

1.6

BBC05  

See above.

52

CH+O2=>O+H+CO

2.77E+08

1.43

1200

1.6

BBC05  

See above.

53

CH+CO(+M)=HCCO(+M)

1.02E+15

-0.4

0

2

BBC05    

Rate constant expression, pressure dependence, and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005).  (Fc=.6; ko should be ~20% lower.)  Relative collider efficiencies are from GRIMech.   

 

LOW

3.26E+24

-2.5

0

 

 

 

 

TROE          0.4

30

90000

90000

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

54

CH+CO2=HCO+CO

6.38E+07

1.51

-715

1.7

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

55

CH2+H(+M)=CH3(+M)

2.13E+13

0.32

0

2.5

FH97, ST94    

The high pressure rate constant expression is from the analysis of Fulle & Hippler (1997).  The low pressure expression is from the analysis of methyl decomposition data in Ar by Su & Teitelbaum (1994).  The Fc expression is a fit to their values.  Relative efficiencies are from GRIMech.

 

LOW

1.39E+34

-5.04

7400

 

 

 

 

TROE          0.405

258

2811

9908

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

56

CH2+O=>2H+CO

8.00E+13

0

0

2.5

Her88    

Rate constant from the evaluation of Herron (1988).  Dissociated products were chosen for the highly exothermic reaction.

57

CH2+OH=H+CH2O

2.86E+13

0.12

-162

3

GRIMech    

An estimate used in GRIMech from Tsang & Hampson (1986) and Miller & Bowman (1989).

58

CH2+OH=CH+H2O

8.63E+05

2.02

6776

3

JKH07    

Rate constant expression is the theoretical TST result from Jasper et al. (2007).

59

CH2+HO2=OH+CH2O

2.00E+13

0

0

6

TH86

Estimated value from Tsang & Hampson (1986), as rounded off in GRIMech.

60

CH2+H2=H+CH3

5.00E+05

2

7230

9

GRIMech    

An estimate from GRIMech based on rate constants for CH2+CH4, O+H2, and O+CH4.

61

CH2+O2=>OH+H+CO

2.79E+12

0

1000

2

BTW92, BKP11

Rate constant expression from the low temperature dependent measurement of Bley et al. (1992).  Product branching fractions are taken from the measurements and analysis of Blitz et al.(2011).

62

CH2+O2=>2H+CO2

2.01E+12

0

1000

2

BTW92, BKP11

Rate constant expression from the low temperature dependent measurement of Bley et al. (1992).  Product branching fractions are taken from the measurements and analysis of Blitz et al.(2011).

63

CH2+O2=O+CH2O

1.57E+12

0

1000

2

BTW92, BKP11

Rate constant expression from the low temperature dependent measurement of Bley et al. (1992).  Product branching fractions are taken from the measurements and analysis of Blitz et al.(2011).

64

CH2+O2=H2+CO2

1.83E+12

0

1000

2

BTW92, BKP11

Rate constant expression from the low temperature dependent measurement of Bley et al. (1992).  Product branching fractions are taken from the measurements and analysis of Blitz et al.(2011).

65

CH2+O2=H2O+CO

5.20E+11

0

1000

2

BTW92, BKP11

Rate constant expression from the low temperature dependent measurement of Bley et al. (1992).  Product branching fractions are taken from the measurements and analysis of Blitz et al.(2011).

66

CH2+C=H+C2H

5.00E+13

0

0

10

MB89    

Estimated by Miller & Bowman (1989)

67

CH2+CH=H+C2H2

4.00E+13

0

0

6

GRIMech    

likely an estimate, original source unknown

68

CH2+CH2=>2H+C2H2

2.00E+14

0

10989

3.2

BKW95    

Rate constant expressions from the high temperature determinations of Bauerle et al. (1995).

69

2CH2=H2+H2CC

1.60E+15

0

11944

3.2

BKW95    

Rate constant expressions from the high temperature determinations of Bauerle et al. (1995).

70

CH2(S)+N2=CH2+N2

1.20E+13

0

471

2

BBC05    

Quenching rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

71

CH2(S)+AR=CH2+AR

9.00E+12

0

600

1.6

GRIMech    

Taken from GRIMech 3, which averaged 4 literature measurements and 2 consistent temperature dependent studies.

72

CH2(S)+HE=CH2+HE

6.62E+12

0

755

2.5

BBC05    

Quenching rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

73

CH2(S)+H=CH+H2

3.00E+13

0

0

3

TH86    

Rate constant expression and uncertainty estimates from the review of Tsang & Hampson (1986).

74

CH2(S)+O=>2H+CO

3.00E+13

0

0

5

TH86    

Total rate constant expression from the review of Tsang & Hampson (1986), based on an evaluation by Laufer.  We have however assigned the entire very exothermic reaction to the 2H product channel, rather than half to H2.

75

CH2(S)+OH=H+CH2O

3.00E+13

0

0

3

GRIMech    

An estimate from Tsang(1987) used in GRIMech, with the lowest energy products chosen.

76

CH2(S)+H2=CH3+H

6.80E+13

0

0

2

Average

An average of 5 room temperature studies: 4 listed in BBC05 & GBP08.  A lack of temperature dependence was assumed.

77

CH2(S)+O2=CH2+O2

3.13E+13

0

0

2.5

BBC05    

Quenching rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005); 100% quenching and 0% reaction

78

CH2(S)+H2O(+M)=CH3OH(+M)

2.94E+12

0.053

-1897

3

JKHR07

Rate constant expressions are from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  When necessary, multiple expressions have been summed and refit, and/or reversed through the equilibrium constant.  Relative third body efficiencies from GRIMech.

 

LOW

1.68E+41

-7.192

5777

 

 

 

 

TROE          0.992

943

47310

47110

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

79

CH2(S)+H2O=CH2+H2O

1.51E+13

0

-431

2.5

BBC05    

Quenching rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

80

CH2(S)+H2O=H2+CH2O

6.67E+21

-3.134

3300

4

JKHR07(deriv.)

The rate constant expression for the chemical activation low pressure limit rate constant is a fit to values computed with the Multiwell master equation code (Ba01), using LaPlace transforms of the CH3OH high pressure limit theoretical CH3OH decomposition rate constants from Jasper at al.(2007)

81

CH2(S)+H2O2=OH+CH3O

1.29E+14

-0.138

0

3

Estimated  

Estimated from the rate for CH2(S)+H2O=OH+CH3 ??

82

CH2(S)+CO=CH2+CO

9.00E+12

0

0

1.4

GRIMech     

Taken from GRIMech 3, which averaged 2 studies and assumed the quenching channel is 30%.  Oxirane product would then likely account for the remaining 70%, and undergo the reverse decomposition at higher temperatures.  (That channel is omitted.)

83

CH2(S)+CO2=CH2+CO2

1.33E+13

0

0

2.5

KTW90    

Rate constant from the measurement of Koch et al (1990).  Assumes a 33% reaction yield.

84

CH2(S)+CO2=CO+CH2O

6.62E+12

0

0

2.5

KTW90    

Rate constant from the measurement of Koch et al (1990).  Assumes a 33% reaction yield.

85

HCO+H(+M)=CH2O(+M)

1.86E+14

-0.033

-142

3

Troe07   

Rate constant and falloff expressions for both formaldehyde decomposition channels from the review and analysis of Troe(2007).  Values for k(inf) originate in Troe(2005).  Relative collider efficiencies are from GRIMech.

 

LOW

4.19E+34

-5.533

6128

 

 

 

 

TROE          0.782

271

2755

6570

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

86

CH2O(+M)=H2+CO(+M)

3.70E+13

0

71976

2.5

Troe07

Rate constant and falloff expressions for both formaldehyde decomposition channels from the review and analysis of Troe(2007).  Values for k(inf) originate in Troe(2005).  Relative collider efficiencies are from GRIMech.

 

LOW

4.40E+38

-6.1

94000

 

 

 

 

TROE          0.932

197

1540

10300

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

87

CH2O+H=HCO+H2

5.74E+07

1.9

2742

2

IKH93     

The rate constant expression is from a TST calculation by Idram et al. (1993) that provides good consensus agreement with previous measurements and theory, and accompanying high temperature experiments.

88

CH2O+O=OH+HCO

4.16E+11

0.57

2762

1.6

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

89

CH2O+OH=HCO+H2O

7.82E+07

1.63

-1055

2

VDK05   

Rate constant expression is a fit by Vasudevan et al.(2005) to their shock tube data and lower temperature experimental results.

90

CH2O+O2=HO2+HCO

2.44E+05

2.5

36460

3

BBC05    

Rate constant expression and high temperature uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

91

CH2O+HO2=HCO+H2O2

4.11E+04

2.5

10210

3

EYG98    

Rate constant expression from Eiteneer et al.(1998), obtained from fitting their shock tube experiments and obtaining agreement with other experimental determinations.

92

CH2O+CH=H+CH2CO

9.64E+13

0

-517

10

ZFL88    

Rate constant expression is from the measurements of Zabarnick et al. (1988).  The exothermic product channel assumes H loss after the insertion reaction, rather than any rearrangement (CH3+CO is the most exothermic possible product).

93

CH2O+CH2=CH3+HCO

7.40E-02

4.21

1120

4

WZZ06    

VTST and quantum calculation of theoretical rate constant expression by Wang et al (2006). NIST database notes inconsistencies in values.

94

CH2O+CH2(S)=CH3+HCO

1.33E+13

0

-550

3

Estimated

Estimated from CH2(S)+C2H6 of Wagener(1990), adjusting for number of H (1/3)

95

CH2O+C2H=C2H2+HCO

5.40E+03

2.81

5862

5

Estimated

Set equal to the Tsang & Hampson (1986) rate expression for the C2H3 and CH3 reactions.

96

CH2O+C2H3=C2H4+HCO

5.40E+03

2.81

5862

5

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986), from their rate for the analogous CH3 reaction.

97

CH3+H(+M)=CH4(+M)

2.11E+14

0

0

2

CT90, Gol08    

Golden(2008) reviewed the extensive literature recombination and decomposition data and determined a consistent set of falloff rate theory parameters to fit and extrapolate results, which are adopted here.  The k(inf) expression originates with Cobos & Troe(1990).  Relative collider efficiencies are from GRIMech.

 

LOW

7.93E+24

-2.17

0

 

 

 

 

TROE          0.124

1801

33.1

90000

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

98

CH3+O=H+CH2O

5.39E+13

0

0

1.4

avg.BBC05    

The rate constant value is an average of the 8 experimental determinations listed by BBC05.  The product branching fraction measurements listed for H+H2+CO vary from ~.2-.4, and a central value of 30% was chosen.  There is no apparent significant temperature dependence.

99

CH3+O=>H+H2+CO

2.31E+13

0

0

1.4

avg.BBC05

The rate constant value is an average of the 8 experimental determinations listed by BBC05.  The product branching fraction measurements listed for H+H2+CO vary from ~.2-.4, and a central value of 30% was chosen.  There is no apparent significant temperature dependence.

100

CH3+OH(+M)=CH3OH(+M)

6.21E+13

-0.018

-33

2

JKHR07

Rate constant expressions are from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  Multiple k(o) expressions have been summed and refit.  Relative third body efficiencies from GRIMech.

 

LOW

7.24E+36

-6

3226

 

 

 

 

TROE          0.1855

156

1675

4530

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

101

CH3+OH=CH2+H2O

4.29E+04

2.57

3998

2

JKHR07

Rate constant expression is the result of a TST calculation for abstraction by Jasper et al.(2007).

102

CH3+OH=CH2(S)+H2O

1.08E+16

-0.91

546

3

BBC05

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005).  (Theory of JKHR07 is slower.)

103

CH3+OH=H2+CH2O

2.72E+09

0.734

-2177

3

JKHR07

Low pressure limit chemical activation rate constant expression from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  When necessary, multiple expressions have been summed and refit, and/or reversed through the equilibrium constant.

104

CH3+HO2=O2+CH4

2.02E+05

2.745

51750

3 (revise)

JKH09, SMH06

Rate constant expression is given by Jasper et al.(2009) from a variational TST calculation.  This resulted from a theoretical and experimental study of the reverse reaction by Srinivasan et al (SMH06).

105

CH3+HO2=OH+CH3O

1.04E+13

0

-590

3

SYD01, ZL01    

Rate constant expression uses the 1000K result(95%) from flow reactor experiments and modeling of Scire et al.(2001) and the temperature dependence from the theoretical study by Zhu & Lin(2001).  Recent shock tube experiments(HDL12) give half this rate constant.

106

CH3+O2=O+CH3O

7.55E+12

0

28297

2

SSS05    

Rate constant expression of Srinivasan et al (2005) from shock tube measurements and a review of other available data.  The value from HHB05 at 1500K is 30% lower.

107

CH3+O2=OH+CH2O

6.86E+01

2.86

9768

3

HHB05    

Rate constant expression is from the optical diagnostics shock tube determination of Herbon et al.(2005). 

108

CH3+C=H+C2H2

5.00E+13

0

0

10

MB89    

Estimated by Miller & Bowman (1989)

109

CH3+CH=H+C2H3

3.00E+13

0

0

10

MB89    

Estimated by Miller & Bowman (1989)

110

CH3+CH2=H+C2H4

7.23E+13

0

0

3

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

111

CH3+CH2(S)=H+C2H4

1.40E+13

0

-497

3

Estimated  

Estimated from the CH2(S)+CH4 rate constant (3/4*k due to fewer H), as was done in GRIMech

112

2CH3(+M)=C2H6(+M)

2.12E+16

-0.97

620

2

SLG89    

Rate constant parameters from the 2 channel RRKM calculation of Stewart et al., which fit recombination and decomposition data.  Third body efficiencies are the generic GRIMech values.

 

LOW

1.77E+50

-9.67

6220

 

 

 

 

TROE          0.5325

151

1038

4970

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

113

2CH3=H+C2H5

5.00E+12

0.1

10600

2

SLG89 CA lo P

Rate constant expression is the low pressure limit chemical activation expression from the 2 channel RRKM calculations of Stewart et al.  (This neglects possible falloff at high pressure, when the H+C2H5=C2H6 recombination reaction is not close to the low pressure limit.  Only later Chemkin versions accommodate chemical activation falloff.)

114

CH3+HCO=CH4+CO

5.30E+12

0

0

5

Estimated

Rate constant was estimated from the CH3CHO decomposition k(inf) rates by multiplying the reverse CH3+HCO recombination rate by the 20% fraction of the decomposition that forms CH4 product.

115

CH3+CH2O=HCO+CH4

3.19E+01

3.36

4310

2

BBC05    

Rate constant expression from the combustion chemistry review and evaluation of Baulch et al(2005)

116

CH3O(+M)=H+CH2O(+M)

1.13E+10

1.21

24085

2

DG13

Rate constant and falloff expressions are from the theoretical analysis of Dames & Golden(2013). Relative third body efficiencies from GRIMech.

 

LOW

1.00E-07

-0.547

18024

 

 

 

 

TROE          0.341

28

1000

2339

 

 

 

 

HE/ 0.67/  AR/ 0.85/  CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

117

CH3O+H(+M)=CH3OH(+M)

2.44E+11

0.76

0

3

Estimated

The reverse kinf was estimated from the JKHR07 value for CH3OH->H+CH2OH, with 1/3A and Ea increased by the higher bond energy.  For k(o), half the value for H+CH2OH was used, with the same Fc.  Relative third body efficiencies from GRIMech.

 

LOW

6.70E+40

-7.38

9177

 

 

 

 

TROE          0.684

37050

41490

3980

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

118

CH3O+H=H+CH2OH

1.29E+07

1.82

-703

3

JKHR07(deriv.)

The rate constant expression for the chemical activation low pressure limit rate constant is a fit to values computed with the Multiwell master equation code (Ba01), using LaPlace transforms of the CH3OH high pressure limit theoretical CH3OH decomposition rate constants from Jasper at al.(2007)

119

CH3O+H=H2+CH2O

3.79E+13

0

596

3

BBC05

Rate constant expression and uncertainty estimate (1000K including branching fraction) from the combustion chemistry review and evaluation of Baulch et al.(2005)

120

CH3O+H=OH+CH3

3.88E+14

-0.264

-26

3

JKHR07

Low pressure limit chemical activation rate constant expression from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  When necessary, multiple expressions have been summed and refit, and/or reversed through the equilibrium constant. 

121

CH3O+H=CH2(S)+H2O

1.97E+11

0.414

243

4

JKHR07(deriv.)

The rate constant expression for the chemical activation low pressure limit rate constant is a fit to values computed with the Multiwell master equation code (Ba01), using LaPlace transforms of the CH3OH high pressure limit theoretical CH3OH decomposition rate constants from Jasper at al.(2007)

122

CH3O+O=OH+CH2O

3.78E+12

0

0

7

BBC05    

Rate constant expression and uncertainty estimate (1000K including branching fraction) from the combustion chemistry review and evaluation of Baulch et al.(2005)

123

CH3O+OH=H2O+CH2O

1.81E+13

0

0

5

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

124

CH3O+O2=HO2+CH2O

6.32E+10

0

2603

2

GSB82

Rate constant expression is from the measurements of Gutman et al. (1982), which provides a good representation of available data.  Baulch et al.(BBC05) recommend slower rates at higher temperatures, citing likely reactant decomposition in experiments..

125

CH3O+CH3=CH4+CH2O

2.40E+13

0

0

5

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

126

CH3O+CO=CH3+CO2

6.00E+12

0

11000

5

LMV73, HSY00     

The rate constant expression is an Arrhenius fit averaging the low temperature measurements of Lissi et al(1973) with the shock tube determinations from Hidaka et al.(2000).

127

CH2OH(+M)=H+CH2O(+M)   

7.37E+10

0.811

39585

2

DG13

Rate constant and falloff expressions are from the theoretical analysis of Dames & Golden(2013). Relative third body efficiencies from GRIMech.

 

LOW

5.00E-11

0.184

17230

 

 

 

 

TROE          0.001

50

600

2780

 

 

 

 

HE/ 0.67/  AR/ 0.85/  CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

128

CH2OH+H(+M)=CH3OH(+M)

6.67E+10

0.96

0

3

JKHR07 refit

Rate constant expressions are from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  When necessary, multiple expressions have been summed and refit, and/or reversed through the equilibrium constant.  Relative third body efficiencies from GRIMech.

 

LOW

1.34E+41

-7.38

9177

 

 

 

 

TROE          0.684

37050

41490

3980

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

129

CH2OH+H=H2+CH2O

2.44E+13

0

0

2

BBC05    

Rate constant expression and uncertainty estimate (including product fraction) from the combustion chemistry review and evaluation of Baulch et al.(2005)

130

CH2OH+H=OH+CH3

1.60E+13

0.198

-241

2.5

JKHR07

Low pressure limit chemical activation rate constant expression from the multichannel RRKM/ME theory calculations on the CH3OH system by Jasper et al.(2007).  When necessary, multiple expressions have been summed and refit, and/or reversed through the equilibrium constant. 

131

CH2OH+H=CH2(S)+H2O

1.28E+11

0.516

215

4

JKHR07(deriv.)

The rate constant expression for the chemical activation low pressure limit rate constant is a fit to values computed with the Multiwell master equation code (Ba01), using LaPlace transforms of the CH3OH high pressure limit theoretical CH3OH decomposition rate constants from Jasper at al.(2007)

132

CH2OH+O=OH+CH2O

9.03E+13

0

0

2

GRW88    

Rate constant is the room temperature measurement of Grotheer et al.(1988).

133

CH2OH+OH=H2O+CH2O

2.41E+13

0

0

2

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

134

CH2OH+O2=HO2+CH2O

7.23E+13

0

3736

2

BBC05    

High temperature rate constant expression and uncertainty estimate  from the combustion chemistry review and evaluation of Baulch et al.(2005)

135

CH2OH+CH3=CH4+CH2O

2.40E+13

0

0

5

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

136

CH4+H=CH3+H2

6.14E+05

2.5

9588

1.5

BBC05    

Rate constant expression from the combustion chemistry review and evaluation of Baulch et al.(2005)

137

CH4+O=OH+CH3

6.93E+08

1.56

8485

1.4

BCC94    

Rate constant expression and high temperature uncertainty estimate from the earlier combustion chemistry review and evaluation of Baulch et al.(1994), x 0.96 ???

138

CH4+OH=CH3+H2O

1.00E+06

2.182

2446

1.2

SSS05b   

Rate constant expression from Srinivasan et al (2005), determined from their high temperature shock tube data and the extensive literature results available.

139

CH4+HO2=CH3+H2O2

4.70E+04

2.5

21000

2.5

BBC05    

Rate constant expression and uncertainty estimate (~1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

140

CH4+CH=H+C2H4

3.00E+13

0

-397

1.6

BL83    

Rate constant expression from the measurements of Bermann & Lin (1983), as recommended by Baulch et al. (BCC92).

141

CH4+CH2=2CH3

2.46E+06

2

8270

2

GRIMech    

Rate constant expression from GRIMech is derived from the measurements of BDTW(85) using a T^2 dependence.

142

CH4+CH2(S)=2CH3

1.87E+13

0

-497

1.4

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005); we assume 100% reaction

143

CH4+C2H=CH3+C2H2

1.30E+13

0

600

1.6

OL96, CNP00    

A fit to the results of these 2 studies

144

CH3OH+H=CH2OH+H2

1.55E+06

2.351

5912

4

MTF11    

Theoretical rate constant expressions from MTF11 for the 2 abstraction channels.  The sum gives a reasonable fit to the scattered high temperature experimental data available.

145

CH3OH+H=CH3O+H2

5.49E+06

2.147

11134

4

MTF11    

Theoretical rate constant expressions from MTF11 for the 2 abstraction channels.  The sum gives a reasonable fit to the scattered high temperature experimental data available.

146

CH3OH+O=OH+CH2OH

2.47E+13

0

5306

1.6

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

147

CH3OH+O=OH+CH3O

8.20E+12

0

9040

3

Estimated  

Rate constant estimated, using 1/3 A from the other abstraction above (#H), and increasing the activation energy according to an Evan-Polanyi relationship between dH and E for H abstraction by O.

148

CH3OH+OH=CH2OH+H2O

1.42E+05

2.3707

-965.15

1.8

HT89, BC91

Rate constant expressions are a fit to the temperature dependent total reaction rate measurements of Hess & Tully (1989) and the TST calculations for the product branching ratio of Bott & Cohen(1991)

149

CH3OH+OH=CH3O+H2O

1.60E+04

2.697

53.255

2.2

HT89, BC91

Rate constant expressions are a fit to the temperature dependent total reaction rate measurements of Hess & Tully (1989) and the TST calculations for the product branching ratio of Bott & Cohen(1991)

150

CH3OH+O2=CH2OH+HO2

3.58E+05

2.27

42760

3

KLD11    

Rate constant expression from the theoretical calculations of Klippenstein et al. (KLD11).

151

CH3OH+HO2=CH2OH+H2O2

2.28E-05

5.06

10213

3

KLD11    

Rate constant expression (and product) from the theoretical calculations of Klippenstein et al. (KLD11).

152

CH3OH+HO2=CH3O+H2O2

3.34E-02

4.12

16233

3

KLD11    

Rate constant expression (and product) from the theoretical calculations of Klippenstein et al. (KLD11).

153

CH3OH+CH=CH3+CH2O

9.04E+18

-1.93

0

3

JBS00    

Rate constant expression from the measurements of Johnson et al. (JBS00).

154

CH3OH+CH2=CH3+CH2OH

3.20E+01

3.2

7175

3

Tsa87

Rate constant expression and uncertainty estimated in the review of Tsang (1987), from the rate for the analogous CH3 reaction.

155

CH3OH+CH2=CH3+CH3O

1.45E+01

3.1

6940

3

Tsa87

Rate constant expression and uncertainty estimated in the review of Tsang (1987), from the rate for the analogous CH3 reaction.

156

CH3H+CH2(S)=CH3+CH3O

7.00E+12

0

-550

3

Estimated

Estimated from CH2(S)+C2H6 of Wagener(1990), adjusting for number of H (1/6)

157

CH3OH+CH2(S)=CH3+CH2OH

2.00E+13

0

-550

3

Estimated

Estimated from CH2(S)+C2H6 of Wagener(1990), adjusting for number of H (1/2)

158

CH3OH+CH3=CH2OH+CH4

6.65E+02

3.03

8720

2

AT11, BCC05

Theoretical rate constant expressions from Acelu & Truhlar (2011) were doubled in order to fit the measured overall rate as evaluated from measurements by Baulch et al (BCC05).  This should offer better temperature extrapolation and product branching.

159

CH3OH+CH3=CH3O+CH4

2.15E+04

2.27

8710

6

AT11, BCC05

Theoretical rate constant expressions from Acelu & Truhlar (2011) were doubled in order to fit the measured overall rate as evaluated from measurements by Baulch et al (BCC05).  This should offer better temperature extrapolation and product branching.

160

CH3OH+C2H=C2H2+CH2OH

6.00E+12

0

0

5

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

161

CH3OH+C2H=C2H2+CH3O

1.20E+12

0

0

5

Tsa87

Rate constant and uncertainty estimated in the review of Tsang (1987).

162

CH3OH+C2H3=C2H4+CH2OH

3.20E+01

3.2

7175

5

Tsa87

Rate constant expression and uncertainty estimated in the review of Tsang (1987), from the rate for the analogous CH3 reaction.

163

CH3OH+C2H3=C2H4+CH3O

1.45E+01

3.1

6940

5

Tsa87

Rate constant expression and uncertainty estimated in the review of Tsang (1987), from the rate for the analogous CH3 reaction.

164

C2H+H(+M)=C2H2(+M)

2.25E+13

0.32

0

2

HGK05, GRIMech  

High pressure limit rate expression from theoretical calculation of Harding et al.(2005).  Low pressure and falloff parameters are from RRKM calculations from GRIMech.

 

LOW

3.75E+33

-4.8

1900

 

 

 

 

TROE          0.646

132

1315

5566

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

165

C2H+O=CH+CO

5.40E+13

0

0

3.2

BDB96    

Rate constant taken from the mechanism of BDB96.  A later measurement from the same group (DP97) near room temperature indicates a 25% higher rate constant.

166

C2H+OH=H+HCCO

2.00E+13

0

0

5

GRIMech    

Estimate from FWR(92).

167

C2H+H2=H+C2H2

2.11E+06

2.32

882

2

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

168

C2H+O2=HCO+CO

1.63E+14

-0.35

0

2

BBC05    

Rate constant expression and high temperature uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

169

HCCO+H=CH2(S)+CO

1.32E+14

0

0

1.6

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

170

HCCO+O=H+2CO

1.73E+14

-0.112

0

1.6

BBC05    

Derived rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005); the other channel has been subtracted from the recommended total rate and then fit.

171

HCCO+O=CH+CO2

2.95E+13

0

1113

2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

172

HCCO+O2=OH+2CO

1.63E+12

0

854

5

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005); we assumed the most exothermic products

173

HCCO+CH=CO+C2H2

5.00E+13

0

0

6

MB89    

Estimated by Miller & Bowman (1989)

174

HCCO+CH2=C2H3+CO

3.00E+13

0

0

6

MB89    

Estimated by Miller & Bowman (1989)

175

2HCCO=2CO+C2H2

1.00E+13

0

0

6

MB89    

Estimated by Miller & Bowman (1989)

176

C2H2(+M)=H2CC(+M)

8.00E+14

-0.52

50750

3

LW99    

Estimated (??) value from Laskin & Wang (1999). Relative third body efficiencies from GRIMech.

 

LOW

2.45E+15

-0.64

49700

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

177

C2H2+H(+M)=C2H3(+M)

5.54E+08

1.64

2096

2

BBC05    

Rate constant expressions and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005).  The falloff factor formula is a fit to values from their function.  Third body efficiencies relative to N2 are the generic GRIMech values.

 

LOW

/3.63E+27

-3.38

847./

 

 

 

 

TROE          0.215

10.7

1043

2341./

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

178

C2H2+O=H+HCCO

9.39E+08

1.4

2206

2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

179

C2H2+O=CO+CH2

2.35E+08

1.4

2206

3.2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

180

C2H2+OH=H+CH2CO

8.67E-01

3.566

-2370

3

SKM05    

Rate constant expression for abstraction is from the theoretical study of Senosiain et al (2005).

181

C2H2+OH=C2H+H2O

2.63E+06

2.14

17060

3

SKM05    

Rate constant expression derived from the theoretical study of OH addition to acetylene (and rearrangement thereof) by Senosiain et al (2005).   We combined channels for CH2CO and HCCOH and refit the sum, since rapid isomerization of HCCOH is (effectively) assumed in our mechanism.  The parameters are for the low pressure limit.  Stabilization of the C2H2OH adduct is not included in the current mechanism.

182

C2H2+OH=CH3+CO

6.14E+05

1.62

-731

3

SKM05    

Rate constant expressions are from the theoretical study of OH addition to acetylene (and rearrangement thereof) by Senosiain et al (2005).   The parameters are for the low pressure limit.  Stabilization of the C2H2OH adduct is not included in the current mechanism.

183

H2CC+H=C2H2+H

5.00E+13

0

0

2

Estimated   

A rapid rate is estimated for this addition/chemical activation reaction.  This value may be conservative, given that our H addition rates to C2Hx radicals are 3-4 times faster.,  

184

H2CC+OH=CH2CO+H

2.00E+13

0

0

3

Estimated   

A rapid rate is expected for this OH addition - H loss chemical activation reaction.  The selected value is the same as the OH+C2H choice, although some other OH + radical rates are even faster.

185

H2CC+O2=HCO+HCO

1.00E+13

0

0

5

LW99    

Estimated (??) value from Laskin & Wang (1999).

186

CH2+CO(+M)=CH2CO(+M)

8.10E+11

0.5

4510

3

GRIMech    

Rate constant expressions are from GRIMech RRKM calculations, which used a 4.5 kcal/mole barrier to fit reverse decomposition data.

 

LOW

2.69E+33

-5.11

7095

 

 

 

 

TROE          0.591

275

1226

5185

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

187

CH2CO+H=HCCO+H2

4.20E+07

1.9

11850

3

Estimated

Rate constant expression for abstraction was estimated from that for H+C2H6, CH4, with the A factor reduced for the number of H, and the activation energy increased for the enthalpy difference according to the Evans-Polanyi formula of Cohen(1991).

188

CH2CO+H=CH3+CO

7.77E+08

1.45

2780

3

SKM06    

Rate constant expression is the theoretical calculation of Senosiain et al (2006) on their computed C3H3O surface for the chemical activation reaction.  The parameters are for the low pressure limit, and fit existing experimental data well.

189

CH2CO+O=OH+HCCO

1.00E+13

0

10300

10

Estimated

Rate constant estimated from the Arrhenius expression for O+CH4 from the review of Herron & Huie(1973), with A reduced by 1/2 for the #H and Ea increased by the higher endothermicity.

190

CH2CO+O=CH2+CO2

1.08E+12

0

1351

10

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

191

CH2CO+O=2HCO

3.61E+11

0

1351

10

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

192

CH2CO+O=CO+CH2O

3.61E+11

0

1351

10

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

193

CH2CO+OH=HCCO+H2O

1.12E+04

2.74

2220

10

Estimated

Rate constant expression is estimated at 1/2 that for the abstraction reaction with C2H4, accounting for fewer H.

194

CH2CO+OH=CH3+CO2

6.80E+11

0

-1013

6

BBC05    

Rate constant expression and uncertainty estimate (1000K and product) from the combustion chemistry review and evaluation of Baulch et al.(2005)

195

CH2CO+OH=CH2OH+CO

1.01E+12

0

-1013

6

BBC05    

Rate constant expression and uncertainty estimate (1000K and product) from the combustion chemistry review and evaluation of Baulch et al.(2005)

196

CH2CO+CH=C2H3+CO

1.45E+14

0

0

2

HH92    

Rate constant is the room temperature measurement of Hancock & Heal (1992).

197

C2H3+H(+M)=C2H4(+M)

3.88E+13

0.2

0

2

HGK05, GRIMech  

High pressure limit rate expression from theoretical calculation of Harding et al.(2005).  Low pressure and falloff parameters are from RRKM calculations from GRIMech.

 

LOW

1.40E+30

-3.86

3320

 

 

 

 

TROE          0.782

207.5

2663

6095

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

198

C2H3+H=H2+C2H2

1.21E+12

0

0

5

Estimated

Estimated = 2/3k(H+C2H5=H2+C2H4), based on the number of abstractable H and comparable large exothermicities.

199

C2H3+H=H2CC+H2

4.22E+13

0

0

4

BBC05    

Rate constant expression from the combustion chemistry review and evaluation of Baulch et al.(2005); we assumed H2CC product not C2H2

200

C2H3+O=H+CH2CO

3.01E+13

0

0

3.2

HHH88    

The room temperature rate used here is also recommended by BBC05, whose error estimate is adopted.

201

C2H3+OH=H2O+C2H2

2.10E+13

0

0

3

Estimated    

The overall rate constant is the estimate of Tsang & Hampson (1986) for addition.  The product branching fractions are from unpublished RRKM/ME calculations of E. Dames.  An extra (likely smaller) abstraction path was not included.

202

C2H3+OH=CH3+HCO

6.00E+12

0

0

3

Estimated    

The overall rate constant is the estimate of Tsang & Hampson (1986) for addition.  The product branching fractions are from unpublished RRKM/ME calculations of E. Dames.

203

C2H3+OH=CH3CO+H

3.00E+12

0

0

3

Estimated    

The overall rate constant is the estimate of Tsang & Hampson (1986) for addition.  The product branching fractions are from unpublished RRKM/ME calculations of E. Dames.

204

C2H3+O2=HCO+CH2O

4.00E+15

-0.959

580

2

LRA09    

The 3 rate constant expressions for this complex chemical activation reaction are from the quantum and rate theory calculations of Lopez et al.(2005) for 1 atm pressure.  Two minor product channels and recombination are not included, and the pressure dependence is neglected.

205

C2H3+O2=CH2CHO+O

2.00E+09

0.923

226

3

LRA09

The 3 rate constant expressions for this complex chemical activation reaction are from the quantum and rate theory calculations of Lopez et al.(2005) for 1 atm pressure.  Two minor product channels and recombination are not included, and the pressure dependence is neglected.

206

C2H3+O2=C2H2+HO2

4.40E+01

2.95

186

3

LRA09

The 3 rate constant expressions for this complex chemical activation reaction are from the quantum and rate theory calculations of Lopez et al.(2005) for 1 atm pressure.  Two minor product channels and recombination are not included, and the pressure dependence is neglected.

207

C2H3+CH3=CH4+C2H2

9.00E+12

0

-765

3

SKS00    

Rate constant expression from the 300-900K measurements (including product) of Stoliarov et al. (2000).

208

CH2CHO(+M)=CH2CO+H(+M)

1.43E+15

-0.15

45606

3

SKM06    

Rate constant expressions from the theoretical pressure dependent calculations of Senosiain et al.(2006); k(inf) as given, k(o) and Fc from our fit to their results at various temperatures and pressures at/above 1 atm.  Relative efficiencies from JetSurf(WDS10) or GRIMech

 

LOW

2.44E+29

-3.79

43577

 

 

 

 

TROE          0.796

100

50000

34204

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

 

 

 

 

 

209

CH2CHO(+M)=CH3+CO(+M)

2.93E+12

0.29

40326

3

SKM06    

Rate constant expressions from the theoretical pressure dependent calculations of Senosiain et al.(2006); k(inf) as given, k(o) and Fc from our fit to their results at various temperatures and pressures at/above 1 atm.  Relative efficiencies from JetSurf(WDS10) or GRIMech

 

LOW

2.34E+27

-3.18

33445

 

 

 

 

TROE          0.211

199

2032

111702

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

 

 

 

 

 

210

CH2CHO+H=CH3+HCO

2.20E+13

0

0

5

GRIMech    

Rate constant from BEM90 and product branching ratio fromOMM90.

211

CH2CHO+H=CH2CO+H2

1.10E+13

0

0

3

GRIMech    

Rate constant from BEM90 and product branching ratio fromOMM90.

212

CH2CHO+H=CH3CO+H

2.20E+13

0

0

5

Estimated    

Rate constant estimated equal to the CH3 + HCO channel above.

213

CH2CHO+O=>H+CH2+CO2

1.58E+14

0

0

2

Estimated    

Estimated equal to the BBC05 value for CH3CO+O=CO2+CH3

214

CH2CHO+OH=H2O+CH2CO

1.20E+13

0

0

3

GRIMech    

Estimated in GRIMech

215

CH2CHO+OH=HCO+CH2OH

3.01E+13

0

0

3

GRIMech    

Estimated in GRIMech

216

CH2CHO+O2=>OH+CO+CH2O

2.30E+10

0

0

5

BBC05    

Rate constant  from the combustion chemistry review and evaluation of Baulch et al.(2005), based on a room temperature addition rate and product branch

217

CH3CO(+M)=CH3+CO(+M)

1.07E+12

0.63

16895

2

SKM06   

Rate constant expressions from the theoretical pressure dependent calculations of Senosiain et al.(2006); k(inf) as given, k(o) derived from the expression for 0.01 atm Ar, and Fc from our fit to their results at various temperatures and pressures.  Relative efficiencies from JetSurf(WDS10) or GRIMech

 

LOW

5.65E+18

-0.97

14585

 

 

 

 

TROE          0.360

122

50000

16935

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

218

CH3CO+H(+M)=CH3CHO(+M)

9.60E+13

0

0

3

WDS10

Rate constant expressions from the JetSurf mechanism.(WDS10)  Some added collider efficiencies from GRIMech.  (Found no Tsang references to this reaction.)

 

LOW

3.85E+44

-8.569

5500

 

 

 

 

TROE          1.0000

2900

2900

5132

 

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

219

CH3CO+H=CH3+HCO

9.60E+13

0

0

3

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986).

220

CH3CO+O=CH2CO+OH

5.27E+13

0

0

3

BCC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

221

CH3CO+O=CH3+CO2

1.58E+14

0

0

3

BCC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

222

CH3CO+OH=CH2CO+H2O

1.20E+13

0

0

3

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986).

223

CH3CO+OH=CH3+CO+OH

3.00E+13

0

0

3

TH86    

Rate constant expression and uncertainty estimate derived from the review of Tsang & Hampson (1986). We have subtracted the above rate from the total rate and assigned the product to HOCO, which is then assumed to rapidly decompose thermally.

224

CH3CO+HO2=CH3+CO2+OH

3.00E+13

0

0

3

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986).

225

CH3CO+O2=HO2+CH2CO

2.30E+10

0

0

5

Estimated

Estimated equal to the CH2CHO+O2 rate constant

226

CH3CO+CH3=CH4+CH2CO

6.08E+12

0

0

3

HKK90

Taken from the room temperature measurement by HKK90 (with other recombinations and disproportionations).

227

CH3CHO(+M)=CH4+CO(+M)

5.44E+21

-1.74

86364

2

SMK10, HGK10

Rate constant and falloff expressions from Sivaramakrishnan et al.(2010), which match their experimental decomposition measurements and the theoretical calculations of Harding et al.(2010).  The theoretical product branching fraction used is 20%.  Relative efficiencies are from JetSurf(WDS10) and GRIMech.

 

LOW

2.29E+58

-11.3

95922

 

 

 

 

SRI0.138

-6.70E+02

0.001

1

0

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

 

 

 

 

 

228

CH3CHO(+M)=CH3+HCO(+M)

2.18E+22

-1.74

86364

2

SMK10, HGK10

Rate constant and falloff expressions from Sivaramakrishnan et al.(2010), which match their experimental decomposition measurements and the theoretical calculations of Harding et al.(2010).  The theoretical product branching fraction used is 80%.  Relative efficiencies are from JetSurf(WDS10) and GRIMech.

 

LOW

9.15E+58

-11.3

95922

 

 

 

 

SRI0.138

-6.70E+02

0.001

1

0

 

 

 

CO/1.5/ CO2/2./ H2O/6./ H2/2./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./ C2H2/3./ C2H4/3./

 

 

229

CH3CHO+H=CH2CHO+H2

2.05E+09

1.16

2405

1.8

BCC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005), assumed equal product branch

230

CH3CHO+H=CH3CO+H2

2.05E+09

1.16

2405

1.8

BCC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005), assumed equal product branch

231

CH3CHO+O=OH+CH2CHO

2.92E+12

0

1808

2.5

BCC05    

Rate constant expression and uncertainty estimate (1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005), assumed equal product branch

232

CH3CHO+O=OH+CH3CO

2.92E+12

0

1808

2.5

BCC05    

Rate constant expression and uncertainty estimate (1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005), assumed equal product branch

233

CH3CHO+OH=CH3CO+H2O

2.69E+08

1.35

-1574

1.6

BCC05    

Rate constant expression and uncertainty estimate (1000K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

234

CH3CHO+O2=HO2+CH3CO

1.20E+05

2.5

37560

3.5

BCC05    

Rate constant expression and uncertainty estimate (~1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

235

CH3CHO+HO2=CH3CO+H2O2

4.10E+04

2.5

10200

3.5

BCC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

236

CH3CHO+CH3=CH3CO+CH4

2.72E+06

1.77

5920

2

GRIMech    

GRIMech did a fit to various experimental results listed in the NIST Chemical Kinetics Database.

237

C2H4(+M)=H2+H2CC(+M)

3.90E+15

0

87060

2

Est., RDH12

Vinylidene is the lowest energy decomposition channel. A loose 50% restricted rotor transition state was used to estimate k(inf). The k(o) value is the expression from the shock tube study of Ren et al.(2012), who observed no significant pressure falloff from second order behavior.  Lindemann falloff parameters were used(Fc=1). High values for k(inf), k(o), and Fc were needed to fit the absence of pressure dependence but are difficult to justify theoretically. Relative efficiencies are GRIMech values.

 

LOW

3.71E+16

0

67816

 

 

 

 

TROE          1.0

500

50000

5000

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

238

C2H4+H(+M)=C2H5(+M)

1.37E+09

1.463

1355

2

MK04    

The rate constant expressions and parameterization are from the theoretical study of Miller & Klippenstein (2004), which provides good agreement with experimental data.  Relative efficiency values from GRIMech were used.

 

LOW

2.90E+39

-6.642

5769

 

 

 

 

TROE          1.569

-9147

299

152.4

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

239

C2H4+H=C2H3+H2

2.35E+02

3.62

11270

2.5

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

240

C2H4+O=CH3+HCO

8.13E+06

1.88

183

2

BBC05    

Rate constant expression and uncertainty estimate (average, including product) from the combustion chemistry review and evaluation of Baulch et al.(2005).  The product branch is 60%.  The potential surface and rate theory calculations and review of NVH05 give a slightly faster rate and slightly lower branching fraction.

241

C2H4+O=H+CH2CHO

3.70E+09

0.907

839

2

BBC05, NVH05    

A fit expression using the total rate constant from Baulch et al. (2005), and dividing the remaining 40% product between the 2 remaining significant channels according to the theoretical relative yields given by the calculations of Nguyen et al.(2005) at 300K & 2000K.

242

C2H4+O=CH2+CH2O

1.40E+04

2.62

459

2

BBC05, NVH05    

A fit expression using the total rate constant from Baulch et al. (2005), and dividing the remaining 40% product between the 2 remaining significant channels according to the theoretical relative yields given by the calculations of Nguyen et al.(2005) at 300K & 2000K.

243

C2H4+OH=C2H3+H2O

2.23E+04

2.745

2216

2

VHD10    

Abstraction rate constant expression determined from the high temperature shock tube measurements of Hong et al. (2010), where this path dominates.

244

C2H4+OH=CH2O+CH3

1.78E+05

1.68

2060

?

SKM06    

Rate constant expressions from the theoretical calculations of Senosiain et al. (2006), who considered the lower temperature addition mechanism data.

245

C2H4+OH=H+CH3CHO

2.38E-02

3.91

1723

?

SKM06   

Rate constant expressions from the theoretical calculations of Senosiain et al. (2006), who considered the lower temperature addition mechanism data.

246

C2H4+OH=H+CH3CHO

3.19E+05

2.19

5256

?

SKM06

Rate constant expressions from the theoretical calculations of Senosiain et al. (2006), who considered the lower temperature addition mechanism data.  This rate applies to C2H3OH product, not included in the present mechanism and assigned instead to CH3CHO.

247

C2H4+CH3=C2H3+CH4

6.02E+07

1.56

16630

3.2

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

248

C2H4+O2=HO2+C2H3

7.10E+13

0

60010

5

HRW05  

Rate constant expression from the theoretical calculations of Hua et al.(2005), which gives values about half the estimate of TH86.

249

C2H5+H(+M)=C2H6(+M)

5.21E+17

-0.99

1580

2

SRG88    

Rate constant parameters from the 2 channel RRKM calculation of Stewart et al.  Third body efficiencies are the generic GRIMech values.

 

LOW

1.99E+41

-7.08

6685

 

 

 

 

TROE          0.842

125

2219

6882

 

 

 

 

HE/.7/ AR/.7/ CO/1.5/ CO2/2./ H2O/6./ CH4/2./ CH2O/2.5/ C2H6/3./ CH3OH/3./

 

 

250

C2H5+H=H2+C2H4

1.81E+12

0

0

3

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986).

251

C2H5+O=CH3+CH2O

4.42E+13

0

0

4

BBC05    

Rate constant expression and uncertainty estimate (1000K and product) from the combustion chemistry review and evaluation of Baulch et al.(2005); we renormalized the 3 product yields (90%) to the full total rate constant

252

C2H5+O=H+CH3CHO

5.89E+13

0

0

4

BBC05    

Rate constant expression and uncertainty estimate (1000K and product) from the combustion chemistry review and evaluation of Baulch et al.(2005); we renormalized the 3 product yields (90%) to the full total rate constant

253

C2H5+O=OH+C2H4

2.94E+13

0

0

4

BBC05    

Rate constant expression and uncertainty estimate (1000K and product) from the combustion chemistry review and evaluation of Baulch et al.(2005); we renormalized the 3 product yields (90%) to the full total rate constant

254

C2H5+O2=HO2+C2H4

1.41E+07

1.09

-1975

2

MK01    

Rate constant expression from the theoretical analysis of Miller & Klippenbstein(2001), which matches well the known experimental data.

255

C2H5+CH3=CH4+C2H4

9.00E+11

0

0

3.5

BBC05    

Rate constant expression and average uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

256

C2H5+CH2O=C2H6+HCO

5.50E+03

2.81

5860

5

TH86    

Rate constant expression and uncertainty estimate from the review of Tsang & Hampson (1986), from their rate for the analogous CH3 reaction.

257

C2H5+CH3OH=C2H6+CH2OH

3.20E+01

3.2

7175

3

Tsa87

Rate constant expression and uncertainty estimate from the review of Tsang (1987) for the analogous reaction of CH3.  (He gives a larger activation energy of 9160 cal/mole for this reaction due to enthalpy difference.)

258

C2H6+H=C2H5+H2

1.15E+08

1.9

7530

1.4

Coh91    

Transition state theory expression of Cohen (1991), which accurately fits the experimental data over a wide temperature range.

259

C2H6+O=OH+C2H5

1.81E+05

2.8

5803

2

BBC05    

Rate constant expression and high temperature uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

260

C2H6+OH=C2H5+H2O

9.15E+06

2

994

1.6

BBC05    

Rate constant expression and high temperature uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

261

C2H6+CH=CH3+C2H4

1.08E+14

0

-262

3

BBC05    

Rate constant expression and uncertainty estimate from the combustion chemistry review and evaluation of Baulch et al.(2005)

262

C2H6+CH2(S)=CH3+C2H5

3.30E+13

0

-660

2

Wag90, HLS96    

Averaged rate constants and activation energy from 2 harmoneous sources

263

C2H6+CH3=C2H5+CH4

5.60E+10

0

9420

1.5

BBC05    

Rate constant expressions and uncertainty estimate (~1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

264

C2H6+CH3=C2H5+CH4

8.43E+14

0

22260

1.5

BBC05    

Rate constant expressions and uncertainty estimate (~1200K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

265

C2H6+O2=C2H5+HO2

7.29E+05

2.5

49160

3.2

BBC05    

Rate constant expression and uncertainty estimate (to 1100K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

266

C2H6+HO2=C2H5+H2O2

1.10E+05

2.5

16850

2

BBC05    

Rate constant expression and uncertainty estimate (1000K) from the combustion chemistry review and evaluation of Baulch et al.(2005)

 

!

 

! SRI chemiluminescence mechanism, as it was added to GRIMech 3.0

 

! Results are derived from low pressure flame emission data, and depend on the specific GRIMech 3 optimized precursor kinetics and rate constants

 

!

267

CH + O2 = CO + OH*          

1.80E+11

0

0

 

SJP02

Chemiluminescence rate constants taken from fit to SRI flame data, Smith et al (2005, 2002).

268

C2H + O = CO + CH*          

2.50E+12

0

0

 

SPL05

Chemiluminescence rate constants taken from fit to SRI flame data, Smith et al (2005, 2002).

269

C2H + O2 = CO2 + CH*        

3.20E+11

0

1600

 

SPL05

Chemiluminescence rate constants taken from fit to SRI flame data, Smith et al (2005, 2002).

270

H + O + M => OH* + M        

5.45E+12

0

0

 

SPL05

Chemiluminescence rate constants taken from fit to SRI flame data, Smith et al (2005, 2002).

271

OH + OH + H => OH* + H2O    

1.45E+15

0

0

 

SPL05

Chemiluminescence rate constants taken from fit to SRI flame data, Smith et al (2005, 2002).

272

CH* => CH                   

1.85E+06

0

0

 

SPL05

Emission rate constants taken from Smith et al (2005, 2002).

273

CH* + N2 = CH + N2          

3.03E+02

3.4

-381

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

274

CH* + O2 = CH + O2          

2.40E+06

2.14

-1720

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

275

CH* + H2O = CH + H2O        

5.30E+13

0

0

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

276

CH* + H2 = CH + H2          

1.47E+14

0

1361

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

277

CH* + CO2 = CH + CO2        

2.41E-01

4.3

-1694

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

278

CH* + CO = CH + CO          

2.44E+12

0.5

0

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

279

CH* + CH4 = CH + CH4        

1.73E+13

0

167

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

280

CH* + AR = CH + AR          

1.25E+10

0.5

0

 

estimated

Estimated equal to the quenching rate for excited OH*

281

CH* + HE = CH + HE          

1.95E+09

0.5

0

 

estimated

Estimated equal to the quenching rate for excited OH*

282

OH* => OH                   

1.45E+06

0

0

 

SPL05

Emission rate constants taken from Smith et al (2005, 2002).

283

OH* + N2 = OH + N2          

1.08E+11

0.5

-1238

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

284

OH* + O2 = OH + O2          

2.10E+12

0.5

-482

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

285

OH* + H2O = OH + H2O        

5.92E+12

0.5

-861

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

286

OH* + H2 = OH + H2          

2.95E+12

0.5

-444

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

287

OH* + CO2 = OH + CO2        

2.75E+12

0.5

-968

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

288

OH* + CO = OH + CO          

3.23E+12

0.5

-787

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

289

OH* + CH4 = OH + CH4        

3.36E+12

0.5

-635

 

TBH98

Quenching rate constant expressions from the review of Tanaka et al (1998).

290

OH* + AR = OH + AR          

1.25E+10

0.5

0

 

PD75

Quenching rate constant derived from the measurement of Hogan and Davis (1975), assuming a T^1/2 dependence (constant cross section)

291

OH* + HE = OH + HE          

1.95E+09

0.5

0

 

PD75

Quenching rate constant derived from the measurement of Hogan and Davis (1975), assuming a T^1/2 dependence (constant cross section)

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PD75  

Hogan P, Davis DD. Electronic quenching and vibrational relaxation of the OH (A 2Σ+, v'= 1) state. J Chem Phys. 1975;62:4574-6.

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DG13

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DJH01

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DP97

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EYG98

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FH97

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HCD10

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HDB11

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HDH11

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HDL12

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HGK05

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HHB05

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HHH88

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HKK90

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HLS13

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HLS96

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HRW05

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HT89

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IKH93

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JKH07

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JKH09

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JKHR07

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JW06

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Kl11  

Klippenstein SJ. Personal communication. 2011.

KLD11

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KLT02

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KTW90

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LOS00

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MYD99

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Friedrichs G, Davidson DF, Hanson RK. Validation of a thermal decomposition mechanism of formaldehyde by detection of CH2O and HCO behind shock waves. Int J Chem Kinet. 2004;36:157-69.

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