JPS56104994A - Production of purified coke oven gas - Google Patents
Production of purified coke oven gasInfo
- Publication number
- JPS56104994A JPS56104994A JP847880A JP847880A JPS56104994A JP S56104994 A JPS56104994 A JP S56104994A JP 847880 A JP847880 A JP 847880A JP 847880 A JP847880 A JP 847880A JP S56104994 A JPS56104994 A JP S56104994A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- waste water
- absorbing solution
- acid
- gas components
- 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.)
- Granted
Links
Abstract
PURPOSE: To heighten the removal rate of ammonia and acid gas components in waste water and to eliminate a need for pressure vessels, by lowering the pressure in the wast water purification process.
CONSTITUTION: Coke oven gas is contacted countercurrently in an absorbing column 2 with an NH3 absorbing solution to remove volatile acid gas components and then NH3 is recovered in an NH3 recovery equipment 28. On the other hand, the absorbing solution is introduced into an acid removing tower 12 operated with the temperature at its top below 40°C, and is heated therein to 110W160°C to remove the volatile gas components absorbed in the absorbing solution. Then, a portion of the absorbing solution is used as an absorbing solution for the absorbing column 2. The remaining portion of the solution introduced to a stripping column 15 and mixed therein with industrial waste water containing NH3 and/or vollatile gas components. Then, the mixture is heated to 90W140°C at a pressure lower than that in the acid removal tower 12 to extract low-pressure steam containing the NH3 and/or volatile acid gas components in the industrial waste water. In this way, the waste water is purified. Then, the titled gas is obtained by introducing part of all of the steam extracted from the waste water purification process to the suction port of an injector 24 driven by steam at a pressure of 5kg/cm2.G or higher; is increased in pressure to a level higher than that in the acid removal tower; introduced to the acid removal tower 2 and is contacted directly with the absorbing solution.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP847880A JPS56104994A (en) | 1980-01-28 | 1980-01-28 | Production of purified coke oven gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP847880A JPS56104994A (en) | 1980-01-28 | 1980-01-28 | Production of purified coke oven gas |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56104994A true JPS56104994A (en) | 1981-08-21 |
JPH0140875B2 JPH0140875B2 (en) | 1989-08-31 |
Family
ID=11694212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP847880A Granted JPS56104994A (en) | 1980-01-28 | 1980-01-28 | Production of purified coke oven gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56104994A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0198694A (en) * | 1987-10-12 | 1989-04-17 | Mitsubishi Kakoki Kaisha Ltd | Method of conducting optimized control of desulfurization of coke oven gas |
JP2006232904A (en) * | 2005-02-23 | 2006-09-07 | Hitachi Ltd | Gas refining method for coal gasification system |
JP2010531728A (en) * | 2007-07-03 | 2010-09-30 | アルストム テクノロジー リミテッド | Removal of carbon dioxide from flue gas with ammonia-containing media |
JP2011088062A (en) * | 2009-10-22 | 2011-05-06 | Mitsubishi Heavy Ind Ltd | Ammonia recovery apparatus and method therefor |
JP2012214594A (en) * | 2011-03-31 | 2012-11-08 | Jgc Corp | Gas treatment method, and gas treatment apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53145807A (en) * | 1977-05-25 | 1978-12-19 | Mitsubishi Chem Ind Ltd | Production of purified coke oven gas |
-
1980
- 1980-01-28 JP JP847880A patent/JPS56104994A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53145807A (en) * | 1977-05-25 | 1978-12-19 | Mitsubishi Chem Ind Ltd | Production of purified coke oven gas |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0198694A (en) * | 1987-10-12 | 1989-04-17 | Mitsubishi Kakoki Kaisha Ltd | Method of conducting optimized control of desulfurization of coke oven gas |
JP2006232904A (en) * | 2005-02-23 | 2006-09-07 | Hitachi Ltd | Gas refining method for coal gasification system |
JP2010531728A (en) * | 2007-07-03 | 2010-09-30 | アルストム テクノロジー リミテッド | Removal of carbon dioxide from flue gas with ammonia-containing media |
JP2011088062A (en) * | 2009-10-22 | 2011-05-06 | Mitsubishi Heavy Ind Ltd | Ammonia recovery apparatus and method therefor |
US9102547B2 (en) | 2009-10-22 | 2015-08-11 | Mitsubishi Heavy Industries, Ltd. | Ammonia recovery device and recovery method |
JP2012214594A (en) * | 2011-03-31 | 2012-11-08 | Jgc Corp | Gas treatment method, and gas treatment apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0140875B2 (en) | 1989-08-31 |
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