JPS5443874A - Desulfurizing method for exhaust gas - Google Patents
Desulfurizing method for exhaust gasInfo
- Publication number
- JPS5443874A JPS5443874A JP11048877A JP11048877A JPS5443874A JP S5443874 A JPS5443874 A JP S5443874A JP 11048877 A JP11048877 A JP 11048877A JP 11048877 A JP11048877 A JP 11048877A JP S5443874 A JPS5443874 A JP S5443874A
- Authority
- JP
- Japan
- Prior art keywords
- desulfurization
- soln
- spray
- sulfuric acid
- cooling tower
- 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
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To decrease sulfuric acid consumption, by cooling high-temp. exhaust combustion gas contg. SOx in a cooling tower with spray of aq. soln. of NaOH or Na2CO3, and by feeding the produced Na salt particles dissolved in water to a wet desulfurizing unit for exhaust gas so as to utilize the particles for desulfurization.
CONSTITUTION: Exhaust gas from a furnace 1 is cooled to 200W350°C with spray of aq. soln. 4 of NaOH or Na2CO3 blown into the outlet of a cooling tower 3. Resulting particles are finelly divided in a reactor 12 equipped with lameller packings 13 to improve desulfurization ratio. Finely divided powder collected by a dust collector 14 is dissolved in water 18 in a crude Glauber's salt storage tank 17 together with the fine powder obtained in the reactor 12. Collected powder contains principally Na2SO4 with Na2SO3 as a minor component, further contg. 10W25% Na2CO3. The aq. soln. may be utilized for the spray of the cooling tower 3 by returning to a storage tank 8 as a dotted line 19 shows, however it is used as absorbing liq. for wet desulfurization process more profitably in respect to the desulfurization ratio. After used for desulfurization, it is neutralized with sulfuric acid, purified and recovered as Glauber's salt, with reduced consumption of the neutralizing sulfuric acid.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11048877A JPS5443874A (en) | 1977-09-16 | 1977-09-16 | Desulfurizing method for exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11048877A JPS5443874A (en) | 1977-09-16 | 1977-09-16 | Desulfurizing method for exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5443874A true JPS5443874A (en) | 1979-04-06 |
Family
ID=14536999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11048877A Pending JPS5443874A (en) | 1977-09-16 | 1977-09-16 | Desulfurizing method for exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5443874A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS602817A (en) * | 1983-06-20 | 1985-01-09 | Ebara Corp | Incinerating device |
US6096279A (en) * | 1997-03-03 | 2000-08-01 | Mitsubishi Heavy Industries, Ltd. | Flue gas treating process and system |
CN104906936A (en) * | 2015-06-06 | 2015-09-16 | 长春黄金研究院 | High temperature and high pressure desorbing electrolysis waste gas integrated utilization method |
CN106669345A (en) * | 2017-01-20 | 2017-05-17 | 东南大学 | Method for synergistically realizing efficient removal of PM2.5/SO3 in high-moisture flue gas and zero water consumption in wet desulphurization |
CN108671729A (en) * | 2018-07-06 | 2018-10-19 | 亚太环保股份有限公司 | A kind of device and method for administering wet desulfurization flue gas white plume |
CN109945640A (en) * | 2019-04-17 | 2019-06-28 | 湖南省金润碲业有限公司 | A kind of mobile waste gas collection device when metal molten |
-
1977
- 1977-09-16 JP JP11048877A patent/JPS5443874A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS602817A (en) * | 1983-06-20 | 1985-01-09 | Ebara Corp | Incinerating device |
US6096279A (en) * | 1997-03-03 | 2000-08-01 | Mitsubishi Heavy Industries, Ltd. | Flue gas treating process and system |
CN104906936A (en) * | 2015-06-06 | 2015-09-16 | 长春黄金研究院 | High temperature and high pressure desorbing electrolysis waste gas integrated utilization method |
CN106669345A (en) * | 2017-01-20 | 2017-05-17 | 东南大学 | Method for synergistically realizing efficient removal of PM2.5/SO3 in high-moisture flue gas and zero water consumption in wet desulphurization |
CN108671729A (en) * | 2018-07-06 | 2018-10-19 | 亚太环保股份有限公司 | A kind of device and method for administering wet desulfurization flue gas white plume |
CN109945640A (en) * | 2019-04-17 | 2019-06-28 | 湖南省金润碲业有限公司 | A kind of mobile waste gas collection device when metal molten |
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