JPS553858A - Desulfurization method of exhaust gas - Google Patents
Desulfurization method of exhaust gasInfo
- Publication number
- JPS553858A JPS553858A JP7715878A JP7715878A JPS553858A JP S553858 A JPS553858 A JP S553858A JP 7715878 A JP7715878 A JP 7715878A JP 7715878 A JP7715878 A JP 7715878A JP S553858 A JPS553858 A JP S553858A
- Authority
- JP
- Japan
- Prior art keywords
- caco
- column
- liquid
- exhaust gas
- caso
- 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 prevent the oxidation of alkali sulfurous acid by a filtration in the atmosphere of CO2 to be produced from the na-neutralization in a method in which a liquid having SO2 absorbed is neutralized by CaCO3 and then, CaSO3 thus formed is filtered and discharged outside the system while a part of the filtrate is circulated for absorbing SO2.
CONSTITUTION: An exhaust gas 1 containing SO2 is introduced into a absorption column 2 to be brought into contact with a absorption liquid and then discharged from the top of the column. The liquid from the column is reacted in a reaction tank to neutralize CaCO3. Thus, CaSO3 is formed while CO2 is generated. When the slurry of CaCO3 undergoes a vacuum filtration with a vacuum pump covered by a cover 7, the ambient gas in the cover is filtered with a filter device adapted to suck gas only generated in the previous reaction tank 4 through a pipe 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7715878A JPS553858A (en) | 1978-06-26 | 1978-06-26 | Desulfurization method of exhaust gas |
US06/047,083 US4331640A (en) | 1978-06-26 | 1979-06-11 | Process for removing sulfur dioxide from an exhaust gas containing the same |
CA329,908A CA1112022A (en) | 1978-06-26 | 1979-06-15 | Process for removing sulfur dioxide from an exhaust gas containing the same |
DE2925547A DE2925547C2 (en) | 1978-06-26 | 1979-06-25 | Process for removing sulfur dioxide from exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7715878A JPS553858A (en) | 1978-06-26 | 1978-06-26 | Desulfurization method of exhaust gas |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS553858A true JPS553858A (en) | 1980-01-11 |
Family
ID=13625977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7715878A Pending JPS553858A (en) | 1978-06-26 | 1978-06-26 | Desulfurization method of exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS553858A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637335A (en) * | 1992-07-15 | 1994-02-10 | Naoshige Tamamushi | Static induction diode having buried structure or cut-in structure |
-
1978
- 1978-06-26 JP JP7715878A patent/JPS553858A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637335A (en) * | 1992-07-15 | 1994-02-10 | Naoshige Tamamushi | Static induction diode having buried structure or cut-in structure |
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