気相・表面化学種の分析に基づく三元触媒表面詳細反応機構構築

抄録

The emission regulations for HC, NOx and CO emitted from automotive cars become increasingly stringent. Furthermore, due to the recent development of thermally efficient lean burn engines, average exhaust gas temperature is significantly decreased. In addition, test modes such as Real Driving Emissions and WLTP, in which gaseous compositions as well as temperatures tend to be drastically fluctuated are recently introduced. Therefore, catalysts are strongly required to be activated for the wide range of temperature or gaseous compositions of exhaust gas. The computer aided development, i.e., numerical simulation which is capable of quantitative predictions of TWC performance is desired. In this paper, development procedure of surface reaction mechanism with recently developed 1+1D honeycomb monolith reactor model is described. The surface reaction mechanisms and its development procedure can contribute to the drastic improvement of designing catalysts by numerical simulation.