Premium
The oxidation of hydrocarbons by water vapor behind high‐temperature shock‐waves
Author(s) -
Shaviv A.,
BarNun A.
Publication year - 1975
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550070504
Subject(s) - acetylene , chemistry , shock tube , methane , shock wave , radical , water vapor , hydrogen , atmospheric temperature range , photochemistry , shock (circulatory) , thermodynamics , organic chemistry , medicine , physics
The oxidation of acetylene by water vapor was studied behind the reflected shock in a single‐pulse shock tube. Computer simulation experiments reproduced the experimental results in the temperature range of 1500 to 2000°K. The kinetic scheme suggested here involves three major processes, (1) production of hydrogen atoms by the sequence of reactions which lead from acetylene to carbon; (2) production of OH radicals, mainly by the reaction H + H 2 O → H 2 + OH, and (3) fast oxidation of the acetylene and other C/H species by the available oxidants in the system. The experimental results of methane oxidation suggest that methane is converted to acetylene prior to its oxidation. The implication of the experimental results to processes occurring in planetary atmospheres as a result of thunder shock waves is briefly discussed.