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为取代内燃机尾气净化所用的贵金属催化剂,广泛开展了钙钛矿型稀土复合氧化物催化剂的研究.我们用沉淀法和浸渍法制备了多种钙钛矿型稀土复合氧化物催化剂,并以配制的含一氧化碳的混合气进行催化剂的评价,得到了良好的结果.为考查上述催化剂的应用效能,按原方法制备了较大量的大颗粒催化剂,在地质总局勘探技术研究所的新195型柴油机上进行了真实排气气氛下的高空速试验,效果良好.
In order to replace the noble metal catalysts used in the exhaust gas purification of internal combustion engines, the perovskite-type rare earth composite oxide catalysts have been extensively studied.We prepared a variety of perovskite rare earth composite oxide catalysts by precipitation and impregnation methods, Containing carbon monoxide gas mixture for catalyst evaluation, obtained good results.In order to examine the application of the catalyst performance, according to the original method to prepare a larger amount of large particle catalyst, the Institute of Geology and Geophysics of the new 195 diesel engine The real high-speed air exhaust test, the effect is good.