Title:
METHOD FOR SELECTIVELY REDUCING NITROGEN OXIDE
Document Type and Number:
Japanese Patent JP2007152213
Kind Code:
A
Abstract:
To provide a method for improving the reaction efficiency of a reducing agent with nitrogen oxide.
The method for reducing the nitrogen oxide (NOx) contained in an exhaust gas processes the nitrogen oxide (NOx) contained in the exhaust gas in the presence of a catalyst carried on silica gel, zeolite or a metal oxide inside a reactor where the inlet temperature of a catalytic reactor is kept lower than the outlet temperature of the catalytic reactor to take out nitrogen gas. In the method for reducing the nitrogen oxide (NOx) contained in the exhaust gas, the inlet temperature of the catalytic reactor is kept at 150 to 300°C and the outlet temperature of the catalytic reactor is kept at 350 to 600°C.
Inventors:
NANBA TETSUYA
UCHISAWA JIYUNKO
KOBUCHI TAMOTSU
OI AKIHIKO
NAKAYAMA NORIO
UCHISAWA JIYUNKO
KOBUCHI TAMOTSU
OI AKIHIKO
NAKAYAMA NORIO
Application Number:
JP2005349896A
Publication Date:
June 21, 2007
Filing Date:
December 02, 2005
Export Citation:
Assignee:
NAT INST OF ADV IND & TECHNOL
International Classes:
B01D53/94; B01J29/44; F01N3/08; F01N3/10
Domestic Patent References:
| JP2004313840A | 2004-11-11 | |||
| JPH08303232A | 1996-11-19 | |||
| JPS6361525U | 1988-04-23 | |||
| JP2000300958A | 2000-10-31 | |||
| JPH09234340A | 1997-09-09 | |||
| JP2002113331A | 2002-04-16 | |||
| JPH07246319A | 1995-09-26 | |||
| JPH06343831A | 1994-12-20 |
Foreign References:
| WO2004059150A1 | 2004-07-15 |
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