Exposing a cold catalyst to a fuel-oxygen mixture, the surface gets covered with the more effectively adsorbing species. Increasing the temperature, this species is desorbed and the ignition temperature is determined by the rate of desorption. Based on the equations for the heat balance, expressions were derived for the calculation of ignition temperature from the parameters of the experimental setup, the preexponential factor and activation energy of desorption, the ratio of sticking coefficients, and the ratio of adsorption orders of fuel and oxygen. Published experimental data for the catalytic ignition of CO, H2, and CH4 were reinterpreted. Experimental ignition temperatures could be reproduced assuming second order adsorption of CO, H2, and O2 on Pt surface. Original is an abstract.
|Number of pages||1|
|Publication status||Published - Dec 1 2002|
|Event||29th International Symposium on Combustion - Sapporo, Japan|
Duration: Jul 21 2002 → Jul 26 2002
|Other||29th International Symposium on Combustion|
|Period||7/21/02 → 7/26/02|
ASJC Scopus subject areas