GB1107626A - A method of removing sulphur dioxide from gas containing sulphur dioxide - Google Patents
A method of removing sulphur dioxide from gas containing sulphur dioxideInfo
- Publication number
- GB1107626A GB1107626A GB2482165A GB2482165A GB1107626A GB 1107626 A GB1107626 A GB 1107626A GB 2482165 A GB2482165 A GB 2482165A GB 2482165 A GB2482165 A GB 2482165A GB 1107626 A GB1107626 A GB 1107626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- h2seo3
- sulphur dioxide
- h2so4
- content
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/775—Liquid phase contacting processes or wet catalysis processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (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)
- Treating Waste Gases (AREA)
Abstract
SO2 is removed from gases by passing them countercurrent to aq. H2SeO3 in at least two stages, the Se formed in the first stage being completely removed from the liquor circulating in this stage, and the SO2 being completely removed from the gases in the second stage. The first stage may be operated discontinuously adding fresh H2SeO3 intermittently, after withdrawing a portion of the exhausted liquor. The Se may be removed from the H2SO4 -containing soln. withdrawn from the first stage and oxidized to H2SeO3 which is used to maintain to H2SeO3 content in the second stage. The product H2SO4 soln. may be concentrated by evaporation e.g. by passing the hot gases to be treated therethrough. The second stage may be operated continuously and the H2SeO3 content may be maintained at above stoichiometric requirements e.g. at 42 g. SeO2/l, and the H2SO4 content may be kept to a minimum e.g. 77 g./l.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN0025135 | 1964-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1107626A true GB1107626A (en) | 1968-03-27 |
Family
ID=7343312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2482165A Expired GB1107626A (en) | 1964-06-18 | 1965-06-11 | A method of removing sulphur dioxide from gas containing sulphur dioxide |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE665484A (en) |
| FR (1) | FR1450590A (en) |
| GB (1) | GB1107626A (en) |
| SE (1) | SE304342B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5965095A (en) * | 1997-05-05 | 1999-10-12 | Electric Power Research Inst. | Flue gas humidification and alkaline sorbent injection for improving vapor phase selenium removal efficiency across wet flue gas desulfurization systems |
| CN114712979A (en) * | 2021-01-05 | 2022-07-08 | 中冶长天国际工程有限责任公司 | Rapid judgment of SO in flue gas purification process2Method and system for adsorption efficiency |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU85454A1 (en) * | 1984-07-06 | 1985-09-12 | Euratom | METHOD AND DEVICE FOR REMOVING SULFUR DIOXIDE FROM HOT EXHAUST GASES |
-
1965
- 1965-06-11 GB GB2482165A patent/GB1107626A/en not_active Expired
- 1965-06-15 BE BE665484A patent/BE665484A/xx unknown
- 1965-06-15 FR FR20892A patent/FR1450590A/en not_active Expired
- 1965-06-18 SE SE812165A patent/SE304342B/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5965095A (en) * | 1997-05-05 | 1999-10-12 | Electric Power Research Inst. | Flue gas humidification and alkaline sorbent injection for improving vapor phase selenium removal efficiency across wet flue gas desulfurization systems |
| CN114712979A (en) * | 2021-01-05 | 2022-07-08 | 中冶长天国际工程有限责任公司 | Rapid judgment of SO in flue gas purification process2Method and system for adsorption efficiency |
| CN114712979B (en) * | 2021-01-05 | 2023-09-01 | 中冶长天国际工程有限责任公司 | Quick judging SO in flue gas purification process 2 Adsorption efficiency method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| BE665484A (en) | 1965-10-01 |
| FR1450590A (en) | 1966-08-26 |
| SE304342B (en) | 1968-09-23 |
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