国产稀土车用催化剂的试验评价和性能考察

采用国外通用的发动机台架评比方法，对两种典型的国产稀土型车用催化剂进行了性能评比试验，包括空燃比特性试验、起燃温度特性试验以及快速老化试验。通过理论和试验研究对催化剂失活的主要原因作了分析，同时对国内外催化剂的性能水平进行了对比。

Property appraisal tests are made for two typical local produced rare-earth catalysts used in motor vehicleby means of oversea common engine rig test appraisal method. The tests include air-fuel ratio property test, ignition initiating temperature property test and speedy ageing test. Main cause of catalyst invalidation is theoretically and experimentallyanalyzed. Meanwhile, comparison is made between the property grading of catalyst domestic and foreign.