JPS5586522A - Desulfurization of exhaust gas - Google Patents
Desulfurization of exhaust gasInfo
- Publication number
- JPS5586522A JPS5586522A JP15921578A JP15921578A JPS5586522A JP S5586522 A JPS5586522 A JP S5586522A JP 15921578 A JP15921578 A JP 15921578A JP 15921578 A JP15921578 A JP 15921578A JP S5586522 A JPS5586522 A JP S5586522A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- mgso
- recovered
- lime suspension
- slurry
- 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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To reduce the formation of gypsum scale and to carry out continuous operation without a hitch by a method wherein a lime suspension is prepared by oxidizing a lime suspension containing absorbed SOx, separating liquid from solids and reducing the MgSO4 concentration of the recovered liquid.
CONSTITUTION: Gas containing SOx is absorbed by a lime suspension. The resulting slurry containing CaSO4 and/or Ca(HCO3)2 is supplied to an oxidation tower where the slurry is oxidized. After the oxidation, solid and liquid in the slurry are separated. Gypsum is recovered, and liquid containing from 1000W2500ppm of MgSO4 is also recovered. MgSO4 in the recovered liquid is removed by a chemical or physical treatment to reduce the concentration of MgSO4 to below 1500ppm. The resulting liquid is recycled and used for the preparation of the lime suspension.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15921578A JPS5586522A (en) | 1978-12-26 | 1978-12-26 | Desulfurization of exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15921578A JPS5586522A (en) | 1978-12-26 | 1978-12-26 | Desulfurization of exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586522A true JPS5586522A (en) | 1980-06-30 |
Family
ID=15688837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15921578A Pending JPS5586522A (en) | 1978-12-26 | 1978-12-26 | Desulfurization of exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586522A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143821A (en) * | 1982-02-18 | 1983-08-26 | Fuso:Kk | Method for deodorizing malodorous gas |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252871A (en) * | 1975-10-28 | 1977-04-28 | Mitsubishi Heavy Ind Ltd | Method of treating exhaust gas |
-
1978
- 1978-12-26 JP JP15921578A patent/JPS5586522A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252871A (en) * | 1975-10-28 | 1977-04-28 | Mitsubishi Heavy Ind Ltd | Method of treating exhaust gas |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58143821A (en) * | 1982-02-18 | 1983-08-26 | Fuso:Kk | Method for deodorizing malodorous gas |
JPS625009B2 (en) * | 1982-02-18 | 1987-02-03 | Fuso Kk |
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