GB1203451A - Purification of gases containing sulphur oxide products - Google Patents
Purification of gases containing sulphur oxide productsInfo
- Publication number
- GB1203451A GB1203451A GB3138567A GB3138567A GB1203451A GB 1203451 A GB1203451 A GB 1203451A GB 3138567 A GB3138567 A GB 3138567A GB 3138567 A GB3138567 A GB 3138567A GB 1203451 A GB1203451 A GB 1203451A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkaline substance
- sulphite
- gases
- liquid
- temperature
- 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
-
- 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
- B01D53/508—Sulfur oxides by treating the gases with solids
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
1,203,451. Purifying combustion gases. WEIR PUMPS Ltd. 7 July, 1967 [20 July, 1966; 8 Feb., 1967], No. 31385/67. Heading B1R. [Also in Division C1] In a process for purifying gases containing sulphur oxides, e.g. combustion gases, the gases are treated at a flow rate and temperature by injecting thereinto an amount of an alkaline substance such that the sulphur oxides are converted into a sulphite and/or bi-sulphite, the thus treated gases being then scrubbed to remove the sulphite and/or bisulphite without decomposition thereof. Ammonia is the preferred alkaline substance and the temperature of the gases when the alkaline substance is injected is between 10‹ and 180‹C., preferably 50‹ to 150‹C. The scrubbing agent may be water at a temperature of the order of 50‹C. The amount of alkaline substance added may be close to that stoichiometrically necessary to produce a sulphite or that necessary to produce a bi-sulphite. As shown in Figure 1 a gas at 150‹C is sprayed with an alkaline substance from nozzles 2 in a conduit 1 and is afterwards scrubbed in a vessel 4 by passage through a thin layer of liquid maintained on a perforated plate 7. Scrubbing liquid is supplied at 11 and withdrawn via overflow 14 and the sump 6. In a modified apparatus for carrying out the process a chamber may be interposed between the point of introduction of the alkaline substance and the scrubbing vessel. This intermediate chamber may contain heat-exchange elements and condensate collecting in the chamber may be reintroduced into the gas entering through conduit 1. Liquid drawn off from the layer of liquid on plate 7 may be mixed with such condensate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR70091A FR1500130A (en) | 1966-07-20 | 1966-07-20 | Improvement in the purification of fumes and gases containing sulfur oxidation products |
FR94193A FR95109E (en) | 1966-07-20 | 1967-02-08 | Improvement in the purification of fumes and gases containing sulfur oxidation products. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1203451A true GB1203451A (en) | 1970-08-26 |
Family
ID=26172080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3138567A Expired GB1203451A (en) | 1966-07-20 | 1967-07-07 | Purification of gases containing sulphur oxide products |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1669319A1 (en) |
FR (1) | FR95109E (en) |
GB (1) | GB1203451A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344483A (en) * | 1976-09-29 | 1978-04-21 | Chiyoda Chem Eng & Constr Co Ltd | Wet desulfurizing apparatus for exhaust combustion gas |
US4151263A (en) * | 1977-07-29 | 1979-04-24 | Air Products And Chemicals, Inc. | Removal of sulfur oxides from gases by scrubbing with ammoniacal solutions |
-
1967
- 1967-02-08 FR FR94193A patent/FR95109E/en not_active Expired
- 1967-07-07 GB GB3138567A patent/GB1203451A/en not_active Expired
- 1967-07-12 DE DE19671669319 patent/DE1669319A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1669319A1 (en) | 1970-01-15 |
FR95109E (en) | 1970-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |