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公开(公告)号:US20160038878A1
公开(公告)日:2016-02-11
申请号:US14813646
申请日:2015-07-30
Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventor: Olivier SONNTAG , Tim GENSCHOW , Andrew NEWMAN , Isabel Zoe TINGAY , Gudmund SMEDLER
CPC classification number: B01D53/9431 , B01D53/9418 , B01D53/9422 , B01D53/9436 , B01D53/9472 , B01D53/9477 , B01D53/9481 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/502 , B01D2255/904 , B01D2255/911 , B01D2255/9155 , B01D2258/012 , B01J29/072 , B01J29/46 , B01J29/7615 , B01J29/763 , B01J29/80 , B01J35/0006 , B01J35/04 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N13/0093 , F01N2510/0682 , F01N2510/0684 , F01N2570/14 , F02B37/00 , Y02T10/24
Abstract: Provided is a system for treating an exhaust gas comprising a first SCR catalyst zone comprising an iron loaded medium- or large-pore molecular sieve having a first ammonia storage capacity; and a second SCR catalyst zone comprising a copper loaded small-pore molecular sieve having a second ammonia storage capacity, wherein the first SCR catalyst zone is disposed upstream of the second SCR catalyst zone with respect to normal exhaust gas flow through the system and wherein the second ammonia storage capacity is greater than the first ammonia storage capacity. Also provided is a method for using the system to treat exhaust gas.
Abstract translation: 本发明提供一种处理废气的系统,其包括第一SCR催化剂区域,该第一SCR催化剂区域包括具有第一氨储存能力的载有铁的中孔或大孔分子筛; 以及第二SCR催化剂区,其包含具有第二氨储存能力的铜负载小孔分子筛,其中所述第一SCR催化剂区相对于通过所述系统的正常废气流布置在所述第二SCR催化剂区的上游,并且其中 第二氨储存能力大于第一氨储存能力。 还提供了一种使用该系统来处理废气的方法。
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公开(公告)号:US20160045868A1
公开(公告)日:2016-02-18
申请号:US14826238
申请日:2015-08-14
Applicant: Johnson Matthey Public Limited Company
Inventor: Olivier SONNTAG , Tim GENSCHOW , Andrew NEWMAN , Isabel Zoe TINGAY , Gudmund SMEDLER
IPC: B01D53/94 , B01J35/00 , B01J35/04 , B01J23/22 , B01J29/072
CPC classification number: B01D53/9418 , B01D53/8628 , B01D53/9477 , B01D53/9481 , B01D2251/2062 , B01D2255/20723 , B01D2255/20761 , B01D2255/40 , B01D2255/50 , B01D2255/9032 , B01D2255/9155 , B01D2257/404 , B01J21/06 , B01J23/22 , B01J29/072 , B01J29/076 , B01J29/56 , B01J29/58 , B01J29/763 , B01J29/783 , B01J29/80 , B01J35/0006 , B01J35/04 , B01J37/0246 , B01J37/0248 , B01J2229/186 , F01N3/103 , F01N3/2066 , F01N2510/0682 , F01N2510/0684 , F01N2570/18 , Y02T10/24
Abstract: Provided is a system for treating an exhaust gas comprising a first SCR catalyst zone comprising vanadium loaded on a metal oxide selected from TiO2, ZrO2, SiO2, CeO2, and Al2O3; and a second SCR catalyst zone comprising a copper loaded small-pore molecular sieve, wherein the first SCR catalyst zone is disposed upstream of the second SCR catalyst zone with respect to normal exhaust gas flow through the system. Also provided is a method for using the system to treat exhaust gas.
Abstract translation: 提供了一种处理排气的系统,其包括第一SCR催化剂区,其包含负载在选自TiO 2,ZrO 2,SiO 2,CeO 2和Al 2 O 3的金属氧化物上的钒; 以及包含铜负载的小孔分子筛的第二SCR催化剂区,其中所述第一SCR催化剂区相对于通过所述系统的正常废气流布置在所述第二SCR催化剂区的上游。 还提供了一种使用该系统来处理废气的方法。
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公开(公告)号:US20160008759A1
公开(公告)日:2016-01-14
申请号:US14713453
申请日:2015-05-15
Applicant: Johnson Matthey Public Limited Company
Inventor: Olivier SONNTAG , Tim GENSCHOW , Gudmund SMEDLER , Andrew Peter WALKER , Mikael LARSSON , Penelope MARKATOU , Lingzhi ZHANG , Jane GAST
CPC classification number: B01D53/8628 , B01D53/9418 , B01D53/9472 , B01D2255/1021 , B01D2255/20761 , B01D2255/30 , B01D2255/50 , B01D2255/9032 , B01D2255/9035 , B01D2255/9037 , B01D2255/9155 , B01D2257/404 , B01D2258/012 , B01J29/072 , B01J29/763 , B01J29/85 , B01J35/0006 , B01J35/04 , F01N3/2066 , F01N2370/04
Abstract: Provided is a catalytic article comprising (a) a flow through honeycomb substrate having channel walls; (b) a first NH3-SCR catalyst composition coated on and/or within the channel walls in a first zone; and (c) a second NH3-SCR catalyst composition coated on and/or within the channel walls in a second zone, provided that the first zone is upstream of the second zone and the first and second zones are adjacent or at least partially overlap; and wherein the first NH3-SCR catalyst comprises a first copper loaded molecular sieve having a copper to aluminum atomic ratio of about 0.1 to 0.375 and the second NH3-SCR catalyst comprises a second copper loaded molecular sieve having a copper-to-aluminum atomic ratio of about 0.3 to about 0.6.
Abstract translation: 提供一种催化制品,其包含(a)具有通道壁的通过蜂窝状基材的流动; (b)涂覆在第一区中的通道壁上和/或内部的第一NH 3 -SCR催化剂组合物; 并且(c)在第二区域中的通道壁上和/或内部涂覆第二NH3-SCR催化剂组合物,条件是第一区域位于第二区域的上游,并且第一和第二区域相邻或至少部分重叠; 并且其中所述第一NH 3 -SCR催化剂包含铜与铝原子比为约0.1至0.375的第一铜负载分子筛,所述第二NH 3 -SCR催化剂包含具有铜与铝原子比的第二铜负载分子筛 为约0.3至约0.6。
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