JPS57190637A - Method for converting sulfur dioxide in exhaust gas to sulfur - Google Patents
Method for converting sulfur dioxide in exhaust gas to sulfurInfo
- Publication number
- JPS57190637A JPS57190637A JP56074870A JP7487081A JPS57190637A JP S57190637 A JPS57190637 A JP S57190637A JP 56074870 A JP56074870 A JP 56074870A JP 7487081 A JP7487081 A JP 7487081A JP S57190637 A JPS57190637 A JP S57190637A
- Authority
- JP
- Japan
- Prior art keywords
- concn
- amount
- exhaust gas
- supplied
- reductant
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229910052717 sulfur Inorganic materials 0.000 title abstract 2
- 239000011593 sulfur Substances 0.000 title abstract 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To reduce a CS compound accumulated to a reductant and to enhance a SO2 reducing ratio to convert SO2 to sulfur efficiently by controlling a carbonaceous reductant amount and an exhaust gas amount supplied to a reducing tower to adjust the reacting ratio of carbon on the reductant.
CONSTITUTION: A gas amount supplied to a reducing tower, a SO2 concn. in a gas amount exhausted from the reducing tower, a formed H2S concn. and a formed H2 concn. in the gas from the reducing tower, a SO2 reducing ratio by reaction, the amount of a reductant supplied to a reaction system and the amount thereof withdrawn from said reaction system are respectively detected and, from a predetermined calculating formula, an exhaust gas amount and a reductant amount supplied to the reducing tower are controlled so as to be able to maintain a carbon reacting ratio to 80% or more. When O2 concn. in the exhaust gas is high, the exhaust gas is supplied to an adsorbing and desorbing process to adsorb and desorb SO2 as well as to remove O2 simultaneously and, after SO2 concn. and O2 concn. are preliminarily adjusted, said gas it supplied to the reducing tower.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56074870A JPS57190637A (en) | 1981-05-20 | 1981-05-20 | Method for converting sulfur dioxide in exhaust gas to sulfur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56074870A JPS57190637A (en) | 1981-05-20 | 1981-05-20 | Method for converting sulfur dioxide in exhaust gas to sulfur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190637A true JPS57190637A (en) | 1982-11-24 |
| JPS6259618B2 JPS6259618B2 (en) | 1987-12-11 |
Family
ID=13559792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56074870A Granted JPS57190637A (en) | 1981-05-20 | 1981-05-20 | Method for converting sulfur dioxide in exhaust gas to sulfur |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190637A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57118003A (en) * | 1980-11-24 | 1982-07-22 | Foster Wheeler Corp | Method of reducing sulfurous acid gas through circulating use of coal |
-
1981
- 1981-05-20 JP JP56074870A patent/JPS57190637A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57118003A (en) * | 1980-11-24 | 1982-07-22 | Foster Wheeler Corp | Method of reducing sulfurous acid gas through circulating use of coal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6259618B2 (en) | 1987-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY114542A (en) | Removal of carbon dioxide from gas streams | |
| CA2343640A1 (en) | Process for controlling ammonia slip in the reduction of sulfur dioxide emission | |
| JPS53123395A (en) | Gypsum recovering method in wet exhaust gas desulfurization | |
| JPS57190637A (en) | Method for converting sulfur dioxide in exhaust gas to sulfur | |
| JPS5250972A (en) | Method and apparatus for removing dissolved oxygen | |
| JPS57106504A (en) | Concentrating method for oxygen | |
| JPS5440294A (en) | Purifying method for hydrogen chloride | |
| JPS524477A (en) | Process for removal of sulfurous acid gas in exhaust gases by wet acti vated carbon method | |
| JPS56141816A (en) | Method for reactivating activated carbon for desulfurization of combustion gas | |
| JPS5229471A (en) | Method of highly purifying gas by removing various impurities | |
| JPS56141818A (en) | Dry type sulfur recovering desulfurization method | |
| JPS5385805A (en) | Process for removing and recovering hydrogen sulfide from coal gas | |
| JPS5599317A (en) | Regenerating method for adsorbing agent | |
| JPS5368681A (en) | Regenerating method for dehumidification tower by decompression | |
| JPS5689820A (en) | Removing method of hydrogen sulfide | |
| JPS53119779A (en) | Removing method for hydrogen sulfide and ammonia in gas of high temperature | |
| JPS56124428A (en) | Conversion of sulfur dioxide contained in combustion waste gas to sulfur | |
| JPS57209808A (en) | Dry recovery of sulfur | |
| JPS51119380A (en) | A method for removing hydrogen chloride from waste gas | |
| JPS5659604A (en) | Elemental sulfur recovering method | |
| JPS53113264A (en) | Method of treating waste acid | |
| JPS57140625A (en) | Method and apparatus for desulfurising waste gas | |
| JPS52146779A (en) | Desorption of solvent | |
| JPS541274A (en) | Method of removing sulfurous acid gas | |
| JPS5645737A (en) | Dry type desulfurization process |