FR2267284A1 - Purification of effluent gases by removal of sulphurdioxide - using alkaline earth metal hydroxide, oxygen and a catalyst to produce sulphate - Google Patents
Purification of effluent gases by removal of sulphurdioxide - using alkaline earth metal hydroxide, oxygen and a catalyst to produce sulphateInfo
- Publication number
- FR2267284A1 FR2267284A1 FR7510908A FR7510908A FR2267284A1 FR 2267284 A1 FR2267284 A1 FR 2267284A1 FR 7510908 A FR7510908 A FR 7510908A FR 7510908 A FR7510908 A FR 7510908A FR 2267284 A1 FR2267284 A1 FR 2267284A1
- Authority
- FR
- France
- Prior art keywords
- earth metal
- alkaline earth
- sulphate
- soln
- catalyst
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 title abstract 4
- 229910021653 sulphate ion Inorganic materials 0.000 title abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title abstract 2
- 229910052760 oxygen Inorganic materials 0.000 title abstract 2
- 239000001301 oxygen Substances 0.000 title abstract 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title 2
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
- 235000010269 sulphur dioxide Nutrition 0.000 title 1
- 239000004291 sulphur dioxide Substances 0.000 title 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 2
- -1 alkaline earth metal sulphate Chemical class 0.000 abstract 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 235000010261 calcium sulphite Nutrition 0.000 abstract 1
- 239000004295 calcium sulphite Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
-
- 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
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Treating Waste Gases (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45956474A | 1974-04-10 | 1974-04-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2267284A1 true FR2267284A1 (en) | 1975-11-07 |
| FR2267284B1 FR2267284B1 (ref) | 1977-04-15 |
Family
ID=23825300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7510908A Granted FR2267284A1 (en) | 1974-04-10 | 1975-04-08 | Purification of effluent gases by removal of sulphurdioxide - using alkaline earth metal hydroxide, oxygen and a catalyst to produce sulphate |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS50133973A (ref) |
| BE (1) | BE827108A (ref) |
| DE (1) | DE2515272A1 (ref) |
| FR (1) | FR2267284A1 (ref) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058230A (ja) * | 1983-09-09 | 1985-04-04 | Babcock Hitachi Kk | 排煙脱硫方法および装置 |
| DE3544937A1 (de) * | 1985-12-19 | 1987-06-25 | Kali Chemie Ag | Entschwefelungsverfahren |
-
1975
- 1975-03-25 BE BE154695A patent/BE827108A/xx unknown
- 1975-03-25 JP JP50035040A patent/JPS50133973A/ja active Pending
- 1975-04-08 FR FR7510908A patent/FR2267284A1/fr active Granted
- 1975-04-08 DE DE19752515272 patent/DE2515272A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2515272A1 (de) | 1975-10-16 |
| JPS50133973A (ref) | 1975-10-23 |
| FR2267284B1 (ref) | 1977-04-15 |
| BE827108A (fr) | 1975-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |