[专利]
Scr catalyst of transition metal/zeolite
申请号:
2016JP-0187204
申请日:
2016-09-26
公开号:
JP2017060944 A 2017-03-30 [JP2017060944]
公开日:
2017-03-30
申请人:
JOHNSON MATTHEY
专利权人:
JOHNSON MATTHEY
发明人:
PAUL JOSEPH ANDERSEN;COLLIER JILLIAN ELAINE;JOHN LEONELLO CASCI;CHEN HAI-YING;JOSEPH MICHAEL FEDEYKO;RODNEY KOK SHIN FOO;RAJARAM RAJ RAO
国家:
IPC:
B01D-053/94;B01J-029/76;B01J-029/85;C01B-039/46;C01B-039/54;F01N-003/035;F01N-003/08;F01N-003/10;F01N-003/28
(JP2017060944) PROBLEM TO BE SOLVED: To provide a catalyst for selective catalytic reduction (SCR) of nitrogen oxide in gas having catalytic activity at a low temperature, high in selectivity to nitrogen, less in NO formation, good in thermal durability, and high in tolerance to carbohydrate suppression.SOLUTION: There is provided a catalyst for selective catalytic reduction (SCR) of nitrogen oxide in gas, contacts nitrogen oxide in the gas with a nitrogen-based reductant to convert it to nitrogen and is a zeolite catalyst containing at least one kind of transition metal, wherein the zeolite is small porous zeolite containing maximum ring size by 8 tetrahedral atoms, contains aluminosilicate zeolite having at least one skeleton selected from AFX and AFT and the at least one kind of transition metal contains copper and/or iron.SELECTED DRAWING: None