Title:
CATALYST FOR REMOVING NITROGEN OXIDE
Document Type and Number:
Japanese Patent JP3495475
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a catalyst which can maintain a capacity of a long service life for removing nitrogen oxides in combustion exhaust gas.
SOLUTION: A catalyst for removing nitrogen oxides in exhaust gas by catalytic reduction by adding ammonia into the exhaust gas is formed from two layer structure in which a lower layer is a molding comprising a component having a denitration function, and a granular component which has particle size distribution having two peaks between 0.1 and 50μm is coated on the upper layer.
Inventors:
Shigeru Nojima
Kozo Iida
Kozo Iida
Application Number:
JP26818795A
Publication Date:
February 09, 2004
Filing Date:
October 17, 1995
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F23J15/00; B01D53/86; B01D53/94; B01J23/22; B01J23/24; B01J33/00; B01J35/02; B01J37/02; (IPC1-7): B01J33/00; B01D53/86; B01D53/94; B01J23/22; B01J23/24; F23J15/00
Domestic Patent References:
| JP567636A | ||||
| JP59179157A | ||||
| JP3127631A | ||||
| JP637846A | ||||
| JP60106535A |
Attorney, Agent or Firm:
Ryoichi Hagiwara (1 person outside)