公开(公告)号：US20220281752A1

公开(公告)日：2022-09-08

申请号：US17652777

申请日：2022-02-28

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Kaneshalingam ARULRAJ ,  Guy R. CHANDLER ,  Jillian COLLIER ,  Raquel GARCIA ,  Alexander GREEN ,  Nicholas MCNAMARA ,  Paul PHILLIPS ,  Maria Pia RUGGERI ,  Alessandro TURRINA

IPC分类号： C01B39/48 ,  F01N3/20 ,  B01J29/70 ,  B01J29/72 ,  B01J29/78

摘要： The present invention is directed to a method of preparing a synthetic crystalline material, designated as JMZ-12, with a framework built up by the disorder AEI and CHA structures, substantially free of framework phosphorous and prepared preferably in the absence of halides such as fluoride ions. Such method comprises the step of heating a reaction mixture under crystallization conditions for a sufficient period to form a disordered zeolite having both CHA and AEI topologies, wherein the reaction mixture comprises at least one source of aluminum, at least one source of silicon, a source of alkaline or alkaline-earth cations, and a structure directing agent containing at least one source of quaternary ammonium cations and at least one source of alkyl-substituted piperidinium cations in a molar ratio of 0.20 to about 1.4. The resulting zeolites are useful as catalysts, particularly when used in combination with exchanged transition metal(s) and, optionally, rare earth metal(s).

公开(公告)号：US20240269611A1

公开(公告)日：2024-08-15

申请号：US18437280

申请日：2024-02-09

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Silvia ALCOVE CLAVE ,  Jillian COLLIER ,  Veselina Mihaylova GEORGIEVA ,  Alexander Nicholas Michael GREEN ,  Loredana MANTAROSIE ,  Maria Pia RUGGERI ,  Roberta VILLAMAINA

IPC分类号： B01D53/94 ,  B01J29/68 ,  B01J29/76 ,  B01J35/00 ,  B01J35/57 ,  B01J37/02 ,  B01J37/08 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01D53/9418 ,  B01D53/9436 ,  B01D53/9472 ,  B01D53/9477 ,  B01J29/68 ,  B01J29/763 ,  B01J35/19 ,  B01J35/57 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/08 ,  F01N3/2066 ,  F01N3/2803 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/9155 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2258/012 ,  B01D2258/016 ,  F01N2370/04 ,  F01N2610/02

摘要： Provided is an SCR catalyst article comprising a substrate having thereon a second catalyst composition downstream of a first catalyst composition, wherein the first and second catalyst compositions are different and wherein the first catalyst composition is an SCR catalyst composition and the second catalyst composition comprises an Fe-loaded small- or medium-pore molecular sieve, the small- or medium-pore molecular sieve having a silica-to-alumina ratio (SAR) of from 6 to 19.

公开(公告)号：US20220080399A1

公开(公告)日：2022-03-17

申请号：US17457067

申请日：2021-12-01

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： John CASCI ,  Jillian COLLIER ,  Paul COX ,  Robert HODGKINS ,  Geraint LLOYD ,  Alessandro TURRINA

IPC分类号： B01J29/72 ,  B01D53/94 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/10 ,  C01B39/48 ,  F01N3/20

摘要： JMZ-1, a zeolite having a CHA structure and containing trimethyl(cyclohexylmethyl)ammonium cations as a structure directing agent is described. A calcined zeolite, JMZ-1C, that does not contain a structure directing agent, is also described. Metal containing JMZ-1C has improved SCR activity compared to CHA-containing zeolites having the same metal loading and comparable silica:alumina ratios (SAR). Methods of preparing JMZ-1, JMZ-1C and metal containing calcined counterparts of JMZ-1C are described along with methods of using JMZ-1C and metal containing calcined counterparts of JMZ-1C in treating exhaust gases.