公开(公告)号：US20180147569A1

公开(公告)日：2018-05-31

申请号：US15881845

申请日：2018-01-29

申请人： John L. CASCI ,  Hai-Ying CHEN ,  Joseph Michael FEDEYKO ,  Jillian Elaine COLLIER ,  Raj Rao RAJARAM ,  David THOMPSETT ,  Robert P. HODGKINS

发明人： John L. CASCI ,  Hai-Ying CHEN ,  Joseph Michael FEDEYKO ,  Jillian Elaine COLLIER ,  Raj Rao RAJARAM ,  David THOMPSETT ,  Robert P. HODGKINS

IPC分类号： B01J29/76 ,  C01B39/54 ,  B01D53/86 ,  C01B39/04 ,  C01B39/10 ,  B01D53/94 ,  B01J29/70 ,  B01J29/85 ,  B01J29/88 ,  B01J35/04 ,  B01J37/28 ,  B01J37/02

CPC分类号： B01J29/763 ,  B01D53/8628 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/707 ,  B01J29/7015 ,  B01J29/85 ,  B01J29/88 ,  B01J35/04 ,  B01J37/0246 ,  B01J37/28 ,  B01J2229/183 ,  B01J2229/186 ,  C01B39/04 ,  C01B39/10 ,  C01B39/54 ,  Y02T10/24

摘要： A catalyst washcoat is provided having a molecular sieve with a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The washcoat includes one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article.

公开(公告)号：US20170274358A1

公开(公告)日：2017-09-28

申请号：US15447294

申请日：2017-03-02

申请人： Philip Gerald BLAKEMAN ,  Gavin Michael BROWN ,  Sougato CHATTERJEE ,  Andrew Francis CHIFFEY ,  Jane GAST ,  Paul Richard PHILLIPS ,  Raj Rao RAJARAM ,  Glen SPREITZER ,  Andrew Peter WALKER

发明人： Philip Gerald BLAKEMAN ,  Gavin Michael BROWN ,  Sougato CHATTERJEE ,  Andrew Francis CHIFFEY ,  Jane GAST ,  Paul Richard PHILLIPS ,  Raj Rao RAJARAM ,  Glen SPREITZER ,  Andrew Peter WALKER

IPC分类号： B01J23/44 ,  B01D53/94 ,  B01J21/04 ,  B01J23/40 ,  B01J23/42 ,  B01J23/63 ,  B01J29/76 ,  B01J33/00 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/03 ,  F01N3/035 ,  F01N3/20

CPC分类号： B01J23/44 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/407 ,  B01D2255/9022 ,  B01D2255/904 ,  B01D2255/9155 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/40 ,  B01J23/42 ,  B01J23/63 ,  B01J29/7615 ,  B01J29/763 ,  B01J33/00 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/038 ,  B01J2229/186 ,  B01J2229/42 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/208 ,  F01N2510/0682 ,  Y02A50/2325 ,  Y02T10/24

摘要： A catalysed substrate monolith 12 for use in treating exhaust gas emitted from a lean-burn internal combustion engine, which catalysed substrate monolith 12 comprising a first washcoat coating 16 and a second washcoat coating 18, wherein the first washcoat coating comprises a catalyst composition comprising at least one platinum group metal (PGM) and at least one support material for the at least one PGM, wherein at least one PGM in the first washcoat coating is liable to volatilise when the first washcoat coating is exposed to relatively extreme conditions including relatively high temperatures, wherein the second washcoat coating comprises at least one metal oxide for trapping volatilised PGM and wherein the second washcoat coating is oriented to contact exhaust gas that has contacted the first washcoat coating.