Autoignition Chemistry of C4 Olefins Under Motored Engine Conditions: A
Comparison of Experimental and Modeling Results 912315
A detailed chemical kinetic mechanism was used to simulate the oxidation of 1-butene, 2-butene, and isobutene under motored engine conditions. Predicted species concentrations were compared to measured species concentrations obtained from a motored, single-cylinder engine. The chemical kinetic model reproduced correctly the trends in the measured species concentrations. The computational and experimental results showed the main features of olefin chemistry: radical addition to the bond leads to the production of the observed carbonyls and epoxides. For isobutene oxidation, the production of unreactive, 2-methyl allyl radicals leads to higher molecular-weight species and chain termination.
Citation: Pitz, W., Westbrook, C., and Leppard, W., "Autoignition Chemistry of C4 Olefins Under Motored Engine Conditions: A Comparison of Experimental and Modeling Results," SAE Technical Paper 912315, 1991, https://doi.org/10.4271/912315. Download Citation