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公开(公告)号：US20230191374A1
公开(公告)日：2023-06-22
申请号：US18067787
申请日：2022-12-19
Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventor： Hai-Ying CHEN , Joseph FEDEYKO , Jacob GILMORE , Jing LU , Nicholas MCNAMARA
CPC classification number: B01J29/047 , B01J23/44 , B01J35/04 , F01N3/106 , F01N3/2825 , B01D53/94 , F01N2330/06 , F01N2370/04 , F01N2510/063 , B01D2255/1023
Abstract: The present invention relates to a catalytic material for treating an exhaust gas produced by a natural gas engine, which catalytic material comprises a molecular sieve and a platinum group metal (PGM) supported on the molecular sieve, wherein the molecular sieve has a framework comprising silicon, oxygen and germanium, and has a content of heteroatom T-atoms of ≤about 0.20 mol %, wherein the germanium is present in an amount of from 15 to 20 mol %. The present invention further relates to a catalyst article and a compressed natural gas combustion and exhaust system.
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公开(公告)号：US20230191382A1
公开(公告)日：2023-06-22
申请号：US18067822
申请日：2022-12-19
Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
Inventor： Hai-Ying CHEN , Joseph FEDEYKO , Jacob GILMORE , Jing LU , Nicholas MCNAMARA
CPC classification number: B01J29/89 , B01J23/44 , B01J35/04 , F01N3/2828 , B01D53/944 , F01N2370/04 , F01N2330/06 , B01D2255/1023 , B01D2255/50
Abstract: The present invention relates to a catalytic material for treating an exhaust gas produced by a natural gas engine, which catalytic material comprises a molecular sieve and a platinum group metal (PGM) supported on the molecular sieve, wherein the molecular sieve has a framework comprising silicon, oxygen, titanium and optionally germanium, and has a content of non-titanium heteroatom T-atoms of ≤ about 0.20 mol %, wherein the titanium is present in an amount of from 1 to 3 mol %. The present invention further relates to a catalyst article and to a compressed natural gas combustion and exhaust system.
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