发明名称 |
METHOD FOR CATALYTICALLY REDUCING NITROGEN OXIDE AND CATALYST THEREFOR |
摘要 |
<p>Disclosed is a catalyst for catalytically reducing nitrogen oxides in an exhaust gas by contacting the exhaust gas which is generated by supplying and combusting a fuel under periodic rich/lean conditions. The catalyst is composed of (A) a catalyst component A which is composed of (a) ceria, (b) a praseodymium oxide, or (c) a mixture of oxides and/or a composite oxide of at least two elements selected from cerium, zirconium, praseodymium, neodymium, terbium, samarium, gadolinium and lanthanum; (B) a catalyst component B which is composed of (d) a noble metal catalyst component comprising at least one substance selected from platinum, rhodium, palladium and their oxides and (e) a carrier; and (C) a catalyst component C which is composed of at least one of (f) a solid acid and (g) a solid acid supporting at least one oxide of at least one metal selected from vanadium, tungsten, molybdenum, copper, iron, cobalt, nickel and manganese.</p> |
申请公布号 |
WO2005044426(A1) |
申请公布日期 |
2005.05.19 |
申请号 |
WO2004JP16910 |
申请日期 |
2004.11.08 |
申请人 |
VALTION TEKNILLINEN TUTKIMUSKESKUS;HONDA MOTOR CO., LTD.;NAKATSUJI, TADAO;SUZUKI, NORIO;OHNO, HIROSHI;SATO, NAOHIRO;MORITA, TOMOKO;WADA, KATSUJI |
发明人 |
NAKATSUJI, TADAO;SUZUKI, NORIO;OHNO, HIROSHI;SATO, NAOHIRO;MORITA, TOMOKO;WADA, KATSUJI |
分类号 |
B01D53/94;B01J23/652;B01J29/74;B01J29/76;B01J29/78;B01J35/00;(IPC1-7):B01D53/94;F01N3/10;B01J29/22 |
主分类号 |
B01D53/94 |
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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