JPS5763117A - Stack gas desulfurization method - Google Patents
Stack gas desulfurization methodInfo
- Publication number
- JPS5763117A JPS5763117A JP55135880A JP13588080A JPS5763117A JP S5763117 A JPS5763117 A JP S5763117A JP 55135880 A JP55135880 A JP 55135880A JP 13588080 A JP13588080 A JP 13588080A JP S5763117 A JPS5763117 A JP S5763117A
- Authority
- JP
- Japan
- Prior art keywords
- tower
- fed
- adsorption
- active carbon
- sulfuric acid
- 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
Abstract
PURPOSE: To eliminate the need for purchasing of sulfuric acids, reduce the amt. of treating SO2 in an absorption tower and reduce the usage of absorbents by using the sulfuric acid recovering the SO2 in waste gases through adsorption with active carbon for controlling pH in an absorbing liquid oxidation process by a lime gypsum method.
CONSTITUTION: After the waste gas 1 of a boiler is cooled and removed of dust in a cooling tower 2, it is adsorbed away of part of SO2 contained therein by the active carbon 31 of an adsorption tower 30, thence it is fed to an absorption tower 7 where it is absorbed away of SO2 by the lime slurry circulating therein. This gas is released. The active carbon 31 after the adsorption of SO2 is washed, and the water contg. the desorbed H2SO4 is ded to the tower 2 where it is brought in contact with the waste gas to concentrate H2SO4. The liquid contg. soot and concd. H2SO4 is fed to a thickener 34, where soot is settled and separated. Thw overflowing liquid of the thickener 34 is stored as a dilute sulfuric acid in a sulfuric acid tank 17, and is fed to a pH control tank 14 by a pump 15. It is used for oxidation of unreacted CaCO3 to CaSO4 and pH control of the slurry to be supplied to an oxidation tower 19.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55135880A JPS5763117A (en) | 1980-10-01 | 1980-10-01 | Stack gas desulfurization method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55135880A JPS5763117A (en) | 1980-10-01 | 1980-10-01 | Stack gas desulfurization method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5763117A true JPS5763117A (en) | 1982-04-16 |
Family
ID=15161926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55135880A Pending JPS5763117A (en) | 1980-10-01 | 1980-10-01 | Stack gas desulfurization method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5763117A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4696804A (en) * | 1985-02-05 | 1987-09-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for treating SO2, SO3 and dust simultaneously |
US5811066A (en) * | 1994-11-18 | 1998-09-22 | Steag Aktiengesellschaft | Method and device for scrubbing flue gases |
US6090355A (en) * | 1995-11-13 | 2000-07-18 | Steag Aktiengesellschaft | Method and device for cleaning flue gases from furnaces |
CN1126594C (en) * | 1995-06-28 | 2003-11-05 | 三菱重工业株式会社 | Flue-gas treatment system |
US6814948B1 (en) | 1995-06-28 | 2004-11-09 | Mitsubishi Jukogyo Kabushiki Kaisha | Exhaust gas treating systems |
JP2009520600A (en) * | 2005-12-19 | 2009-05-28 | フルオー・テクノロジーズ・コーポレイシヨン | Two-stage quenching cleaning device |
CN110898608A (en) * | 2018-09-18 | 2020-03-24 | 中国石化工程建设有限公司 | System and method for adsorbing and purifying flue gas by using active coke |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4838278A (en) * | 1971-09-20 | 1973-06-05 | ||
JPS4940296A (en) * | 1972-08-24 | 1974-04-15 |
-
1980
- 1980-10-01 JP JP55135880A patent/JPS5763117A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4838278A (en) * | 1971-09-20 | 1973-06-05 | ||
JPS4940296A (en) * | 1972-08-24 | 1974-04-15 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4696804A (en) * | 1985-02-05 | 1987-09-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for treating SO2, SO3 and dust simultaneously |
US5811066A (en) * | 1994-11-18 | 1998-09-22 | Steag Aktiengesellschaft | Method and device for scrubbing flue gases |
CN1126594C (en) * | 1995-06-28 | 2003-11-05 | 三菱重工业株式会社 | Flue-gas treatment system |
US6814948B1 (en) | 1995-06-28 | 2004-11-09 | Mitsubishi Jukogyo Kabushiki Kaisha | Exhaust gas treating systems |
US6090355A (en) * | 1995-11-13 | 2000-07-18 | Steag Aktiengesellschaft | Method and device for cleaning flue gases from furnaces |
JP2009520600A (en) * | 2005-12-19 | 2009-05-28 | フルオー・テクノロジーズ・コーポレイシヨン | Two-stage quenching cleaning device |
CN110898608A (en) * | 2018-09-18 | 2020-03-24 | 中国石化工程建设有限公司 | System and method for adsorbing and purifying flue gas by using active coke |
CN110898608B (en) * | 2018-09-18 | 2022-02-08 | 中国石化工程建设有限公司 | System and method for adsorbing and purifying flue gas by using active coke |
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