Single-pulse shock tube studies of hydrocarbon pyrolysis. Part 7.—Pyrolysis of propane
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 75, 2819-2826
- https://doi.org/10.1039/f19797502819
Abstract
The pyrolysis of 1% mixtures of propane in argon has been studied in a single-pulse shock tube over the temperature range 1210–1680 K for reaction times between 0.7 and 1.65 ms and pressures of 0.6–1.0 atm. The overall rates of decomposition and the product distributions are in satisfactory agreement with earlier investigations. The ratio of products arising from C1 fragments to those from C2 fragments is not equal to unity as earlier mechanisms have predicted. Computer modelling of the pyrolysis shows that the results can only be matched with reasonable rate constants by incorporating the reaction CH3+ C3H6→ C2H4+ C2H5. Rate constants for the rate-determining steps in the mechanism are obtained by computer optimization. The sensitivity of these results to the various assumptions involved is also evaluated.Keywords
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