Single-Pulse Shock Tube Examination of Hydrocarbon Pyrolysis and Soot Formation.

摘要

A single-pulse shock tube coupled to a capillary gas chromatograph has been used to observe the pyrolysis of a variety of hydrocarbons. Product species, mass balances, and H/C ratios of uncollected material have been determined. Relative 'sooting' tendencies have been found to be toluene equiv. benzene > allene > vinyl-acetylene equiv. acetylene > 1.3-butadiene equiv. cyclohexene for similar carbon-atom densities. A detailed chemical kinetic model has been constructed for the pyrolysis of acetylene and describes profiles of major species as well as the production of vinylacetylene, benzene and phenylacetylene. Keywords: Relative sooting tendency of hydrocarbons, Hydrocarbon pyrolysis, Single-pulse shock tube, Acetylene, Benzene, Ring formation, Reprints, SPST, VA, Vinylacetylene, PA, Phenylacetylene. (jg)