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公开(公告)号：US20210339234A1
公开(公告)日：2021-11-04
申请号：US17302346
申请日：2021-04-30
发明人： Nikki Jane AMOS-REICHERT , Daniel AVIS , Juergen BAUER , Yannick BIDAL , Guy Richard CHANDLER , Alexander Nicholas Michael GREEN , Neil GREENHAM , Matthew Eben HARRIS , Sofia LOPEZ-OROZCO , Joerg Werner MUENCH , Paul Richard PHILLIPS , Irene PIRAS
摘要： The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.
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公开(公告)号：US20210379576A1
公开(公告)日：2021-12-09
申请号：US17303290
申请日：2021-05-26
发明人： Nikki Jane AMOS-REICHERT , Daniel AVIS , Juergen BAUER , Yannick BIDAL , Guy Richard CHANDLER , Alexander Nicolas Michael GREEN , Neil GREENHAM , Matthew Eben HARRIS , Sofia LOPEZ-OROZCO , Joerg MUENCH , Paul Richard Phillips , Irene PIRAS
摘要： The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a slurry having a solids content of up to 50 wt % by mixing together at least the following components a crystalline molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor and an aqueous solvent at a temperature in the range 10 to 35° C.; (b) coating a substrate with the slurry formed in step (a); and (c) calcining the coated substrate formed in step (b) to form a catalyst layer on the substrate. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.
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公开(公告)号：US20230130033A1
公开(公告)日：2023-04-27
申请号：US18048509
申请日：2022-10-21
发明人： Juergen BAUER , Sofia LOPEZ-OROZCO
摘要： The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50 % by weight by mixing together a crystalline small pore molecular sieve in an H+ or NH4+ form, iron sulphate, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, an exhaust system, and a method of treating an exhaust gas.
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4.发明申请公开(公告)号：US20170145887A1
公开(公告)日：2017-05-25
申请号：US15129625
申请日：2015-03-27
CPC分类号： F01N3/2066 , B01D53/9418 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9155 , B01D2258/012 , B01J29/56 , B01J29/76 , B01J29/763 , B01J29/83 , B01J29/85 , B01J35/04 , B01J35/1052 , B01J35/108 , B01J37/0009 , B01J37/0246 , B01J2229/14 , B01J2229/18 , B01J2229/186 , B01J2229/38 , B01J2229/42 , B01J2229/62 , B01J2229/64 , F01N3/2842 , Y02T10/24
摘要： A method of reducing nitrogen oxides in exhaust gas of an internal combustion engine by selective catalytic reduction (SCR) comprises contacting the exhaust gas also containing ammonia and oxygen with a catalytic converter comprising a catalyst (2) comprising at least one crystalline small-pore molecular sieve catalytically active component (ZM,I) having a maximum ring opening of eight tetrahedral basic building blocks, which crystalline small-pore molecular sieve catalytically active component (ZM,I) comprising mesopores.
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5.发明申请公开(公告)号：US20200018210A1
公开(公告)日：2020-01-16
申请号：US16449598
申请日：2019-06-24
IPC分类号： F01N3/20 , B01J29/04 , B01J29/74 , B01J29/72 , B01J29/70 , B01J35/10 , B01J37/02 , B01J37/30 , B01D53/94 , B01J35/04 , B01J29/76 , B01J37/00 , F01N3/28
摘要： A method of reducing nitrogen oxides in exhaust gas of an internal combustion engine by selective catalytic reduction (SCR) comprises contacting the exhaust gas also containing ammonia and oxygen with a catalytic converter comprising a catalyst (2) comprising at least one crystalline small-pore molecular sieve catalytically active component (ZM,I) having a maximum ring opening of eight tetrahedral basic building blocks, which crystalline small-pore molecular sieve catalytically active component (ZM,I) comprising mesopores.
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