Thermal decomposition of t-butyl alcohol in shock waves

T. K. Choudhury; W. A. Sanders; Ming-Chang Lin; C. Y. Lin

doi:10.1080/00102209008951633

Thermal decomposition of t-butyl alcohol in shock waves

T. K. Choudhury, W. A. Sanders, Ming-Chang Lin, C. Y. Lin

Department of Applied Chemistry

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26 Scopus citations

Abstract

The pyrolysis of t-butyl alcohol was studied in shock waves in the temperature range 1220—1620 K. The rate constants for the molecular and free radical formation channels were obtained with the help of kinetic modeling of H₂O and CO concentration profiles. The rate constants for the runs above 1500K were corrected for the pressure fall-off effect using the RRKM theory. The Arrhenius expressions for the molecular and radical decomposition channels I-C₄H₉OH -> H₂O + i-C₄H₈-> CH₃+ (CH₃)₂COH were found to be k₁= 10^14.50±0.30exp(- 32, 9000 ± 900/T) sec-¹and k₂= 1O_{16.48 ± 0.24}exp(- 40, 990 ± 738/T) sec_-1respectively. Combination of our k₁with that of Lewis et al. (1974) obtained at 925-1175K leads to k₁= 3.55 X 1O₁₄exp(-33, 100/T) sec_-1covering the broad temperature range 920-1630K.

Original language	English
Pages (from-to)	219-232
Number of pages	14
Journal	Combustion science and technology
Volume	71
Issue number	4-6
DOIs	https://doi.org/10.1080/00102209008951633
State	Published - 1 Jun 1990

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@article{891d02804b604208838a820aaa38900e,

title = "Thermal decomposition of t-butyl alcohol in shock waves",

abstract = "The pyrolysis of t-butyl alcohol was studied in shock waves in the temperature range 1220—1620 K. The rate constants for the molecular and free radical formation channels were obtained with the help of kinetic modeling of H2O and CO concentration profiles. The rate constants for the runs above 1500K were corrected for the pressure fall-off effect using the RRKM theory. The Arrhenius expressions for the molecular and radical decomposition channels I-C4H9OH -> H2O + i-C4H8-> CH3+ (CH3)2COH were found to be k1= 1014.50±0.30exp(- 32, 9000 ± 900/T) sec-1and k2= 1O16.48 ± 0.24exp(- 40, 990 ± 738/T) sec-1respectively. Combination of our k1with that of Lewis et al. (1974) obtained at 925-1175K leads to k1= 3.55 X 1O14exp(-33, 100/T) sec-1covering the broad temperature range 920-1630K.",

author = "Choudhury, {T. K.} and Sanders, {W. A.} and Ming-Chang Lin and Lin, {C. Y.}",

year = "1990",

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doi = "10.1080/00102209008951633",

language = "English",

volume = "71",

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TY - JOUR

T1 - Thermal decomposition of t-butyl alcohol in shock waves

AU - Choudhury, T. K.

AU - Sanders, W. A.

AU - Lin, Ming-Chang

AU - Lin, C. Y.

PY - 1990/6/1

Y1 - 1990/6/1

N2 - The pyrolysis of t-butyl alcohol was studied in shock waves in the temperature range 1220—1620 K. The rate constants for the molecular and free radical formation channels were obtained with the help of kinetic modeling of H2O and CO concentration profiles. The rate constants for the runs above 1500K were corrected for the pressure fall-off effect using the RRKM theory. The Arrhenius expressions for the molecular and radical decomposition channels I-C4H9OH -> H2O + i-C4H8-> CH3+ (CH3)2COH were found to be k1= 1014.50±0.30exp(- 32, 9000 ± 900/T) sec-1and k2= 1O16.48 ± 0.24exp(- 40, 990 ± 738/T) sec-1respectively. Combination of our k1with that of Lewis et al. (1974) obtained at 925-1175K leads to k1= 3.55 X 1O14exp(-33, 100/T) sec-1covering the broad temperature range 920-1630K.

AB - The pyrolysis of t-butyl alcohol was studied in shock waves in the temperature range 1220—1620 K. The rate constants for the molecular and free radical formation channels were obtained with the help of kinetic modeling of H2O and CO concentration profiles. The rate constants for the runs above 1500K were corrected for the pressure fall-off effect using the RRKM theory. The Arrhenius expressions for the molecular and radical decomposition channels I-C4H9OH -> H2O + i-C4H8-> CH3+ (CH3)2COH were found to be k1= 1014.50±0.30exp(- 32, 9000 ± 900/T) sec-1and k2= 1O16.48 ± 0.24exp(- 40, 990 ± 738/T) sec-1respectively. Combination of our k1with that of Lewis et al. (1974) obtained at 925-1175K leads to k1= 3.55 X 1O14exp(-33, 100/T) sec-1covering the broad temperature range 920-1630K.

UR - http://www.scopus.com/inward/record.url?scp=0010275165&partnerID=8YFLogxK

U2 - 10.1080/00102209008951633

DO - 10.1080/00102209008951633

M3 - Article

AN - SCOPUS:0010275165

SN - 0010-2202

VL - 71

SP - 219

EP - 232

JO - Combustion science and technology

JF - Combustion science and technology

IS - 4-6

ER -

Thermal decomposition of t-butyl alcohol in shock waves

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