公开(公告)号：US11219885B2

公开(公告)日：2022-01-11

申请号：US16699054

申请日：2019-11-28

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： John Casci ,  Jillian Collier ,  Paul Cox ,  Robert Peter Hodgkins ,  Geraint Lloyd ,  Alessandro Turrina

IPC分类号： B01J29/72 ,  C01B39/04 ,  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.

公开(公告)号：US20200171472A1

公开(公告)日：2020-06-04

申请号：US16699054

申请日：2019-11-28

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： John Casci ,  Jillian Collier ,  Paul Cox ,  Robert Peter Hodgkins ,  Geraint Lloyd ,  Alessandro Turrina

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