627 DME燃焼排気ガスのNOx触媒による浄化におけるN_2Oの生成(OS5-6 環境負荷とエンジン・燃焼システム-2)(OS5 環境とエネルギー問題)

Abstract

The formation of N_2O in the catalytic purification of simulated DME engine exhaust gas is investigated. Main parameters are catalytic reactor temperature and NO inlet concentration. The results show that there is a possibility of the considerable N_2O formation in the process of catalytic NO reduction. The amount of N_2O formation changes with NO concentration in the simulated exhaust gas, and then shows the maximum value as a function of catalyst temperature. Therefore, N_2O formation characteristic during NOx reduction is very important factor in the performance evaluation of the NOx catalyst for DME engine exhaust gas.