Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction

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专利权人:

CLEAN DIESEL TECHNOLOGIES, INC.

发明人:

PETER-HOBLYN JEREMY D.,BALLES ERIC N.,TARABULSKI THEODORE J.,HOFMANN JOHN E.,VALENTINE JAMES M.

申请号：

US19990378350

公开号：

US6203770(B1)

申请日:

1999.08.20

申请国别(地区):

美国

年份:

2001

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.

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