ES468517A1 - Catalytic process - Google Patents
Catalytic processInfo
- Publication number
- ES468517A1 ES468517A1 ES468517A ES468517A ES468517A1 ES 468517 A1 ES468517 A1 ES 468517A1 ES 468517 A ES468517 A ES 468517A ES 468517 A ES468517 A ES 468517A ES 468517 A1 ES468517 A1 ES 468517A1
- Authority
- ES
- Spain
- Prior art keywords
- oxygen
- catalyst
- commercial
- cooling medium
- gas mixture
- 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
- 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
- C01B17/762—High pressure processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Process for catalytically oxidizing sulfur dioxide, characterized in that a gaseous mixture comprising sulfur dioxide and oxygen, and which is at an elevated temperature, is successively passed through a number of catalytic steps to form sulfur trioxide by reaction between sulfur dioxide and oxygen; commercial oxygen, ie pure oxygen or a gas mixture containing at least 90% by volume of oxygen or oxygen enriched air, is introduced into the gas mixture by a region downstream of the catalyst of the first catalytic stage and upstream of the catalyst. Catalyst of the final catalytic stage, and downstream of the catalyst of each stage the gas mixture is cooled by a cooling medium separated from commercial oxygen or oxygen enriched air, or by mixing with a gaseous cooling medium separated from commercial oxygen or air enriched in oxygen, or by mixing with a gaseous cooling medium that acts as a vehicle for commercial oxygen or oxygen enriched air. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14441/77A GB1602108A (en) | 1977-04-05 | 1977-04-05 | Catalytic process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES468517A1 true ES468517A1 (en) | 1979-09-16 |
Family
ID=10041253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES468517A Expired ES468517A1 (en) | 1977-04-05 | 1978-04-04 | Catalytic process |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE865708A (en) |
| ES (1) | ES468517A1 (en) |
| GB (1) | GB1602108A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8524083D0 (en) * | 1985-09-30 | 1985-11-06 | Boc Group Plc | Oxidation method |
| FR2703987B1 (en) * | 1993-04-15 | 1995-06-16 | Air Liquide | PROCESS FOR PRODUCING SULFURIC ACID FROM SULFUR DIOXIDE. |
-
1977
- 1977-04-05 GB GB14441/77A patent/GB1602108A/en not_active Expired
-
1978
- 1978-04-04 ES ES468517A patent/ES468517A1/en not_active Expired
- 1978-04-05 BE BE186580A patent/BE865708A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1602108A (en) | 1981-11-04 |
| BE865708A (en) | 1978-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19980401 |