JPS57171425A - System for denitrating waste gas - Google Patents
System for denitrating waste gasInfo
- Publication number
- JPS57171425A JPS57171425A JP56056340A JP5634081A JPS57171425A JP S57171425 A JPS57171425 A JP S57171425A JP 56056340 A JP56056340 A JP 56056340A JP 5634081 A JP5634081 A JP 5634081A JP S57171425 A JPS57171425 A JP S57171425A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- gas
- dust
- oil mist
- catalytic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To prevent poisening of a denitrating catalyst and to enhance durability thereof by a method wherein a waste combustion gas is passed through a soot removing catalytic filter at first to remove dust or oil mist and, after filtering, ammonia is injected into said gas to pass the same through the denitrating catalyst.
CONSTITUTION: In a catalytic denitrating method of the exhaust of a prime mover such as a boiler or a diesel engine, dry denitraion of an exhaust gas of a selective reducing catalytic system using ammonia injection is carried out and an ammonia gas C is injected into the exhaust gas at 300W400°C in an amount same to that of NOx and both of NOx and ammonia are chemically converted to nitrogen gas but, because this catalyst I is poisoned by dust and oil mist in the exhaust gas and the activity thereof is lost, a soot removing device A and a soot removing catalytic filter B therein removing dust and oil mist prior to injection of ammonia are placed and collection of dust or oil mist and removal of soot or oil components by the catalytic oxidation are carried out.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56056340A JPS57171425A (en) | 1981-04-16 | 1981-04-16 | System for denitrating waste gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56056340A JPS57171425A (en) | 1981-04-16 | 1981-04-16 | System for denitrating waste gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57171425A true JPS57171425A (en) | 1982-10-22 |
Family
ID=13024486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56056340A Pending JPS57171425A (en) | 1981-04-16 | 1981-04-16 | System for denitrating waste gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57171425A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6439819U (en) * | 1987-09-01 | 1989-03-09 | ||
JPH01297130A (en) * | 1988-05-26 | 1989-11-30 | Babcock Hitachi Kk | Exhaust gas treatment device |
EP0628706A2 (en) * | 1993-06-10 | 1994-12-14 | Inco Limited | Catalytic conversion of internal combustion engine exhaust gases |
EP1262644A3 (en) * | 2001-06-01 | 2003-08-06 | Nelson Burgess Limited | Catalytic converter |
US7498010B2 (en) | 1998-02-06 | 2009-03-03 | Johnson Matthey Public Limited Company | Catalytic reduction of NOx |
US8800268B2 (en) | 2006-12-01 | 2014-08-12 | Basf Corporation | Zone coated filter, emission treatment systems and methods |
US8833062B1 (en) | 2013-03-15 | 2014-09-16 | Daimier Ag | Catalytic reduction of NOx |
US8850802B1 (en) | 2013-03-15 | 2014-10-07 | Daimler Ag | Catalytic reduction of NOx |
JP2018015716A (en) * | 2016-07-28 | 2018-02-01 | 株式会社東芝 | Denitrification system and denitrification method |
-
1981
- 1981-04-16 JP JP56056340A patent/JPS57171425A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6439819U (en) * | 1987-09-01 | 1989-03-09 | ||
JPH01297130A (en) * | 1988-05-26 | 1989-11-30 | Babcock Hitachi Kk | Exhaust gas treatment device |
EP0628706A2 (en) * | 1993-06-10 | 1994-12-14 | Inco Limited | Catalytic conversion of internal combustion engine exhaust gases |
EP0628706A3 (en) * | 1993-06-10 | 1995-01-04 | Inco Ltd | |
US7498010B2 (en) | 1998-02-06 | 2009-03-03 | Johnson Matthey Public Limited Company | Catalytic reduction of NOx |
US8480986B2 (en) | 1998-02-06 | 2013-07-09 | Daimler Ag | Catalytic reduction of NOx |
US9073010B2 (en) | 1998-02-06 | 2015-07-07 | Daimler Ag | Catalytic reduction of NOx |
US6722124B2 (en) | 2001-06-01 | 2004-04-20 | Nelson Burgess Limited | Catalytic converter |
EP1262644A3 (en) * | 2001-06-01 | 2003-08-06 | Nelson Burgess Limited | Catalytic converter |
US8800268B2 (en) | 2006-12-01 | 2014-08-12 | Basf Corporation | Zone coated filter, emission treatment systems and methods |
US8833062B1 (en) | 2013-03-15 | 2014-09-16 | Daimier Ag | Catalytic reduction of NOx |
US8850802B1 (en) | 2013-03-15 | 2014-10-07 | Daimler Ag | Catalytic reduction of NOx |
JP2018015716A (en) * | 2016-07-28 | 2018-02-01 | 株式会社東芝 | Denitrification system and denitrification method |
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