GB545767A - Improvements relating to the treatment of boiler flue gases - Google Patents
Improvements relating to the treatment of boiler flue gasesInfo
- Publication number
- GB545767A GB545767A GB1738540A GB1738540A GB545767A GB 545767 A GB545767 A GB 545767A GB 1738540 A GB1738540 A GB 1738540A GB 1738540 A GB1738540 A GB 1738540A GB 545767 A GB545767 A GB 545767A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scrubbing liquor
- gases
- scrubber
- liquor
- flue gases
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
545,767. Ammonium salts from flue gases, sulphurs. FRANCIS, W., SIMON - CARVES Ltd., and FULHAM, MAYOR, ALDERMEN AND COUNCILLORS OF THE METROPOLITAN BOROUGH OF. Dec. 6, 1940, No. 17385. [Classes 1 (ii) and 90] Flue gases are treated to remove sulphur compounds by a closed cycle method including introduction of ammoniacal scrubbing liquor into the hot gases, e.g. as a spray, before they enter the scrubber proper so as to concentrate the scrubbing liquor, a purge of the scrubbing liquor being taken from the closed cycle equivalent to the production of fixed ammonium salts, and means being provided for testing the exit gases from the scrubber by ascertaining the pH value of water through which the gases are bubbled whereby to determine the rate of addition of ammoniacal scrubbing liquor to maintain the said pH value at a desired level'. The ammoniacal scrubbing liquor may contain loosely combined ammonia as hydrate, carbonate and sulphide. Liquor in the scrubber proper is obtained from previous cycles and is substantially neutral. The products from the purge consist essentially of ammonium sulphate and sulphite ; the solution is passed to an autoclave and heated with sulphuric acid at about 12 atmospheres pressure, with addition of a relatively small proportion of sulphur to keep the reaction under control. Depending on the amount of sulphuric acid added, ammonium sulphide alone or ammonium sulphate and sulphur are obtained. Specification 360,574 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1738540A GB545767A (en) | 1940-12-06 | 1940-12-06 | Improvements relating to the treatment of boiler flue gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1738540A GB545767A (en) | 1940-12-06 | 1940-12-06 | Improvements relating to the treatment of boiler flue gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB545767A true GB545767A (en) | 1942-06-11 |
Family
ID=10094263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1738540A Expired GB545767A (en) | 1940-12-06 | 1940-12-06 | Improvements relating to the treatment of boiler flue gases |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB545767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2427555A (en) * | 1944-12-02 | 1947-09-16 | Colorado Fuel & Iron Corp | Process of treating ferrous sulphate solutions |
| EP1189676A1 (en) * | 1999-04-16 | 2002-03-27 | CBL Technologies | Organic acid scrubber & methods |
-
1940
- 1940-12-06 GB GB1738540A patent/GB545767A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2427555A (en) * | 1944-12-02 | 1947-09-16 | Colorado Fuel & Iron Corp | Process of treating ferrous sulphate solutions |
| EP1189676A1 (en) * | 1999-04-16 | 2002-03-27 | CBL Technologies | Organic acid scrubber & methods |
| JP2002542012A (en) * | 1999-04-16 | 2002-12-10 | シービーエル テクノロジーズ インコーポレイテッド | Organic acid scrubber and method |
| EP1189676A4 (en) * | 1999-04-16 | 2003-04-02 | Cbl Technologies | Organic acid scrubber & methods |
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