PETER-HOBLYN, JEREMY D.,BALLES, ERIC N.,TARABULSKI, THEODORE J.,HOFMANN, JOHN E.,VALENTINE, JAMES M.
申请号:
US19970854831
公开号:
US5968464(A)
申请日:
1997.05.12
申请国别(地区):
美国
年份:
1999
代理人:
摘要:
Urea is pyrolyzed in a chamber designed to facilitate gasification of the urea by pyrolysis with conversion of urea to ammonia and isocyanic acid (HNCO) with water vapor and carbon dioxide. The product gases are introduced into exhaust gases from a lean-burn engine, preferably upstream of a turbocharger. The exhaust gases are then contacted with an SCR catalyst.