GB896457A - Improvements in the separation of sulphur oxides from waste gases - Google Patents
Improvements in the separation of sulphur oxides from waste gasesInfo
- Publication number
- GB896457A GB896457A GB29971/60A GB2997160A GB896457A GB 896457 A GB896457 A GB 896457A GB 29971/60 A GB29971/60 A GB 29971/60A GB 2997160 A GB2997160 A GB 2997160A GB 896457 A GB896457 A GB 896457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- oxides
- water
- reaction
- ammonia
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
- C01C1/245—Preparation from compounds containing nitrogen and sulfur
- C01C1/246—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds
- C01C1/247—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds by oxidation with free oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
In the separation of sulphur oxides from waste gases by reaction of the gases with ammonia and water to form ammonium sulphite, which is oxidized in the presence of catalysts to ammonium sulphate, active carbon is used as the catalyst and the amount of ammonia is equivalent to or less than equivalent to the amount of oxides of sulphur. The active carbon used is preferably that which has been activated by steam. The O2-containing gas used for the oxidation may be the gas containing the oxides of sulphur or another gas, e.g. air. The reaction may be carried out, in a reaction tower containing filler bodies or baffles, at a temperature depending on the temperature of the sulphur oxide gases, but advantageously above 30 DEG C. The waste gases may be practically free from water, so that they should be moistened with hot water or an appropriate mixture of steam and water, the moisture content being so adjusted that the reaction proceeds at a practically constant temperature and an (NH4)2SO4 solution of constant concentration is formed. Loss of ammonia is avoided by limiting the NH3 addition to an amount necessary for the formation of an (NH4)2SO4 solution which has a pH value less than 6,8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE896457X | 1959-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB896457A true GB896457A (en) | 1962-05-16 |
Family
ID=6848216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29971/60A Expired GB896457A (en) | 1959-09-01 | 1960-08-31 | Improvements in the separation of sulphur oxides from waste gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB896457A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1275036B (en) * | 1964-07-23 | 1968-08-14 | Dr Yun Kyong Shin | Process for the rapid and quantitative production of aqueous sulfate solutions from sulfite solutions by oxidation with oxygen or oxygen-containing gases |
| US3961020A (en) * | 1972-10-09 | 1976-06-01 | Hitachi, Ltd. | Process for removing sulfur oxides and nitrogen oxides from flue gases using halogen-impregnated actuated carbon with simultaneous injection of ammonia |
| CN103395803A (en) * | 2013-08-01 | 2013-11-20 | 瓮福（集团）有限责任公司 | Production method for powdery ammonium sulfate |
-
1960
- 1960-08-31 GB GB29971/60A patent/GB896457A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1275036B (en) * | 1964-07-23 | 1968-08-14 | Dr Yun Kyong Shin | Process for the rapid and quantitative production of aqueous sulfate solutions from sulfite solutions by oxidation with oxygen or oxygen-containing gases |
| US3961020A (en) * | 1972-10-09 | 1976-06-01 | Hitachi, Ltd. | Process for removing sulfur oxides and nitrogen oxides from flue gases using halogen-impregnated actuated carbon with simultaneous injection of ammonia |
| CN103395803A (en) * | 2013-08-01 | 2013-11-20 | 瓮福（集团）有限责任公司 | Production method for powdery ammonium sulfate |
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