Rate Coefficients of Combustion/Fuel Conversion Reactions by High-Temperature Photochemistry. Progress Report, July 1, 1981-June 30, 1982

摘要

Reliable kinetic data on isolated, elementary combustion reactions spanning a broad temperature range are required for modeling and scaling studies aimed at improving the performance of, and reducing the pollutant formation from, fossil-fuel burning devices. Such data are generally not available. In the present work a new technique, High Temperature Photochemistry (HTP), has been developed to provide such data. It combines the technology of the High-Temperature Fast-Flow Reactors (HTFFR) we developed to study kinetics of metal atom/oxide reactions in the 300 to 1900 K range with the flash photolysis technique, which although used widely for study of such combustion reactions, has previously been limited to studies at or near room temperature. This report discusses attempts to produce and detect CH sub 3 radicals to perform kinetic studies of their oxidation by O sub 2 and O atoms. Apparatus modifications and improvements have been made which greatly simplify obtaining data on OH reactions. Current work is aimed at extending our previous rate coefficient measurements on the OH/C sub 6 H sub 6 reaction (500 to 1150 K) to temperatures up to 1800 K. (ERA citation 07:051033)