[Catalytic combustion of soot on combined oxide catalysts].
Combined oxide catalysts are prepared for catalytic combustion of soot and regeneration from diesel emissions. Thermo-gravimetric analysis(TGA) and temperature programmed oxidation(TPO)are used to evaluate the activity of catalysts under the influence of composition,atomic ration, H2O, calcinations temperature and mass ration between catalysts and soot. Results show that Cu-Mo-O had high activity among double metal oxide catalysts. Among multicomponent metal oxide catalysts, Cu-K-Mo-O had high activity when atomic ratio Cu: K: Mo = 1:1:2 and mass ration between catalysts and soot equals 5: 1. Under this condition, soot ignition temperature of Cu-K-Mo-O catalyst was 327 degrees C. H2O addition and calcinations temperature had little influence on it,which is one kind of compatible catalyst for soot control and catalytic regeneration from diesel emissions.
He
Xu-wen
XW
College of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China.
Yu
Jun-jie
JJ
Kang
Shou-fang
SF
Hao
Zheng-ping
ZP
Hu
Chun
C
D000393:Air Pollutants / Q000032:analysis; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D001335:Vehicle Emissions / Q000032:analysis*
D000393:Air Pollutants; D010087:Oxides; D001335:Vehicle Emissions; D002244:Carbon; D003300:Copper