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Title:
STABILIZED MICROPOROUS CRYSTALLINE MATERIAL, MANUFACTURING METHOD THEREFOR AND APPLICATION METHOD FOR SELECTIVE CATALYTIC REDUCTION OF NOx
Document Type and Number:
Japanese Patent JP2017141154
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a microporous crystalline material and NOx selective reduction catalyst inn an exhaust gas, having high water thermal stability.SOLUTION: There is provided a microporous crystalline material having an aperture of 3 to 5Å, containing a first metal such as alkali earth and a second metal such as iron, having molar ratio of silica to alumina (SAR) of 3 to 10 and synthesized without using an organic structure directing agent. A crystal structure has a double 6-membered ring (d6r)basic unit and a 8-membered ring aperture and having a structure codes of CHA, LEV, AEI, AFT, EAB, ERI, KFI, SAT, TSC and SAV. There is provided a microporous crystalline material, where the first meta contain Mg, Ca, Sr, Ba, La, Ce, Pr, Nd, mixed rare earth oxide, K, Rb, Cs or a mixture thereof. There is provided a microporous crystalline material, where preferably atom ratio of the first metal is 0.05 to 0.80 and atom ratio of Ca is 0.05 to 0.50.SELECTED DRAWING: None

Inventors:
LI HONG-XIN
CORMIER WILLIAM E
MODEN BJORN
Application Number:
JP2017036467A
Publication Date:
August 17, 2017
Filing Date:
February 28, 2017
Export Citation:
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Assignee:
PQ CORP
International Classes:
C01B39/46; B01D53/94; B01J29/76; B01J29/85; B01J37/02; B01J37/10; B01J37/30; C01B39/54; F01N3/08; F01N3/10
Domestic Patent References:
JP6104270B22017-03-29
JP2010524677A2010-07-22
JP2004536756A2004-12-09
Foreign References:
WO2010054034A22010-05-14
Attorney, Agent or Firm:
Samejima Mutsumi
Junichi
Yamato Kento