基于Urea-SCR技术的V-W/Ti基催化剂在车用柴油机上的应用

Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering(2009)

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Abstract
在小样评价试验台上对制备的适合于车用柴油机SCR技术的V2O5-WO3/TiO2催化剂进行了性能试验,并同国外成熟催化剂的性能进行了对比,结果表明:试验催化剂的催化性能达到了与国外成熟催化剂相似的水平.在此基础上,按照ESC和ETC测试方法和规程对2种催化剂进行了发动机台架排放试验,结果显示,试验柴油机配装采用试验催化剂的SCR催化转化器后,其主要有害排放物测量值低于我国第Ⅳ阶段排放法规的限值,这表明催化剂的配制达到了预定目标的要求.
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Key words
Ammonia,IC engine,Nitrogen oxides,Selective catalytic reduction (SCR),Urea,V2O5-WO3/TiO2 catalyst
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