发明名称 |
BIMETALLIC CATALYST FOR NOX REDUCTION IN ENGINE EXHAUST |
摘要 |
<p>A catalyst made by the introduction of copper ions and cobalt ions into a Y-type zeolite to produce a CuCoY zeolite improves the reduction of NOx in exhaust from a lean burn engine, such as a diesel engine. A dual bed selective reduction reactor in the exhaust stream comprising a first bed of BaY or of Ag/alumina and a second bed of CuCoY is particularly effective in reduction of NOx. In one embodiment, the exhaust stream is suitably treated with an oxidant, such as ozone, and a reductant, such as a diesel hydrocarbon or oxygenated diesel hydrocarbon, before the exhaust passes in contact with the dual bed catalyst.</p> |
申请公布号 |
WO2009035873(A1) |
申请公布日期 |
2009.03.19 |
申请号 |
WO2008US74985 |
申请日期 |
2008.09.02 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
CHO, BYONG, KWON;BIAK, JOON-HYUN |
分类号 |
F01N3/10;B01J23/75;F01N3/00 |
主分类号 |
F01N3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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