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公开(公告)号:US20180333698A1
公开(公告)日:2018-11-22
申请号:US15777998
申请日:2016-11-17
申请人: UMICORE AG & CO. KG
IPC分类号: B01J23/30 , B01J23/22 , B01J21/06 , B01J35/04 , B01J37/02 , B01J37/08 , B01J37/34 , B01D53/94 , F01N3/20 , F01N3/035 , F01N3/28
CPC分类号: B01J23/30 , B01D53/94 , B01D53/9418 , B01D2255/20707 , B01D2255/20723 , B01D2255/20776 , B01D2255/9155 , B01J21/063 , B01J23/22 , B01J35/04 , B01J37/0215 , B01J37/0236 , B01J37/08 , B01J37/346 , B05D1/00 , F01N3/022 , F01N3/035 , F01N3/2066 , F01N3/2814 , F01N2330/06 , F01N2330/18 , F01N2330/40 , F01N2610/02 , Y02T10/24
摘要: Method of preparing monolithic SCR catalyst with a plurality of gas flow channels comprising the steps of (a) providing a monolithic shaped substrate with a plurality of parallel gas flow channels; (b) coating the substrate with a wash coat slurry comprising vanadium oxide precursor compounds and titania and optionally tungsten oxide precursor compounds; and (c) drying the thus coated substrate with a drying rate of 5 mm/min or less along flow direction through the gas flow channels; and (d) activating the dried coated substrate by calcining.