公开(公告)号：EP2406006A2

公开(公告)日：2012-01-18

申请号：EP10741866.7

申请日：2010-02-16

申请人： Millennium Inorganic Chemicals, Inc.

发明人： AUGUSTINE, Steve, M. ,  FU, Guoyi ,  WATSON, Mark

IPC分类号： B01J21/06 ,  B01J23/745 ,  B01J35/10 ,  B01J37/04 ,  B01D53/94 ,  B01D53/56

CPC分类号： B01J21/066 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/40 ,  B01J21/063 ,  B01J23/002 ,  B01J23/10 ,  B01J23/34 ,  B01J23/8892 ,  B01J37/03 ,  B01J37/10 ,  B01J2523/00 ,  Y02C20/10 ,  B01J2523/41 ,  B01J2523/47 ,  B01J2523/48

摘要： DeNOx catalysts for the reduction of NOx compounds and porous catalyst support materials are provided. The inventive catalysts comprise an active metal catalyst component and mixed TiO2/ZrO2 porous support particles that comprise a) a crystalline phase comprising titanium dioxide and/or a titanium/zirconium mixed oxide, b) an amorphous phase comprising zirconium, and c) a small amount of one or more metal oxide(s) or metalloid oxide(s) deposited on the amorphous outer layer. The inventive catalysts exhibit superior activity and ammonia selectivity.