JPS57166301A - Recovery of sulfur from a gas containing sulfur dioxide - Google Patents
Recovery of sulfur from a gas containing sulfur dioxideInfo
- Publication number
- JPS57166301A JPS57166301A JP56051109A JP5110981A JPS57166301A JP S57166301 A JPS57166301 A JP S57166301A JP 56051109 A JP56051109 A JP 56051109A JP 5110981 A JP5110981 A JP 5110981A JP S57166301 A JPS57166301 A JP S57166301A
- Authority
- JP
- Japan
- Prior art keywords
- sulfur dioxide
- reaction
- methanol
- sulfur
- gas containing
- 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)
- Catalysts (AREA)
Abstract
PURPOSE: A gas containing sulfur dioxide is reduced with methanol in the presence of CoO-MoO2-Al2O3 and subjected to the Claus reaction to recover sulfur from sulfur dioxide in high conversion.
CONSTITUTION: A gas containing high-concentration sulfur dioxide such as an eliminated gas from dry desulfurizer is sent through pipe 1 and mixed with methanol 2, then introduced into the reactor 3 filled with a catalyst of CoO-MoO2- supporting Al2O3 where the reaction proceeds at about 250°C or higher temperature and when the temperature exceeds about 350°C more than 95% of methanol fed is utilized ror the reaction. The reaction of formula IV proceeds almost quantitatively and 3mol of sulfur dioxide is reduced with 2mol of methanol sufficiently. But, reactions of formulaIthrough III (take place simultaneously) where both are consumed at a 1:1 molar ratio and sulfur dioxide remains unreacted in an amount corresponding to these reactions. This unreacted sulfur dioxide is subjected to the Claus reaction of formula V in the catalyst-filled reactor 5 at a temperature lower than that in the former reaction. Finally S is condensed in condenser 7 for separation.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56051109A JPS57166301A (en) | 1981-04-07 | 1981-04-07 | Recovery of sulfur from a gas containing sulfur dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56051109A JPS57166301A (en) | 1981-04-07 | 1981-04-07 | Recovery of sulfur from a gas containing sulfur dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57166301A true JPS57166301A (en) | 1982-10-13 |
Family
ID=12877631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56051109A Pending JPS57166301A (en) | 1981-04-07 | 1981-04-07 | Recovery of sulfur from a gas containing sulfur dioxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357364A (en) * | 2011-09-05 | 2012-02-22 | 青岛科技大学 | Preparation of activated carbon-based catalyst used for selective reduction desulphurization of flue gas |
-
1981
- 1981-04-07 JP JP56051109A patent/JPS57166301A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357364A (en) * | 2011-09-05 | 2012-02-22 | 青岛科技大学 | Preparation of activated carbon-based catalyst used for selective reduction desulphurization of flue gas |
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