摘要
在试验室使用高硫燃油进行试验，发现SCR系统在低排温下转换效率持续降低。其原因是由于处理系统喷入尿素溶液，在排气管内分解出氨气，在高硫燃油情况下会生成一种硫酸盐容易覆盖在SCR的涂层表面，进而导致SCR间歇性失效。通过SCR再生试验数据表明．高硫低温工况下．载体转化效率明显下降。
In testing for high sulfur fuel in the Laboratory,transformation efficiency continuously decreased under low emission temperature in the SCR system was found.The reason of which was due to the urea solution sprayed into processing system,and the Ammonia gas decomposed internal exhaust pipe.In the situation of high sulfur fuel,a kind of sulfate was produced and covered on coating surface of SCR easily,and further caused intermittence lapse of the SCR.
出处
《汽车零部件》
2012年第5期111-111,共1页
Automobile Parts
