GB1120232A - Process for producing sulphur trioxide and/or sulphur acid from gases which contain sulphur dioxide by the catalytic oxidation of the sulphur dioxide - Google Patents
Process for producing sulphur trioxide and/or sulphur acid from gases which contain sulphur dioxide by the catalytic oxidation of the sulphur dioxideInfo
- Publication number
- GB1120232A GB1120232A GB27536/65A GB2753665A GB1120232A GB 1120232 A GB1120232 A GB 1120232A GB 27536/65 A GB27536/65 A GB 27536/65A GB 2753665 A GB2753665 A GB 2753665A GB 1120232 A GB1120232 A GB 1120232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gases
- conversion
- conduit
- stage
- hurdle
- 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
- C01B17/765—Multi-stage SO3-conversion
- C01B17/7655—Multi-stage SO3-conversion with intermediate absorption
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
<PICT:1120232/C1/1> A process for the catalytic conversion of SO2-containing gases having an SO2 content of from 8 to 11% by volume to form SO3 and/or sulphuric acid, comprises subjecting the gases to catalytic conversion in the first stage of a two-stage catalytic converter, each stage of which comprises two contact hurdles, to effect a conversion of 70 to 90% by volume of the total SO2 contained in the starting gases, cooling the gases, effecting an intermediate absorption of the SO3 formed in the first converter stage, and contained the cooled gases, heating the gases to the temperature required for conversion in the second converter stage, subjecting the gases to conversion of the first hurdle of the second converter stage, cooling the gases from the first contact hurdle of the second converter stage to the working temperature of the second contact hurdle, subjecting the gases to conversion over the second contact hurdle of the second converter stage, cooling the gases from the second contact hurdle of the second converter stage, and absorbing the SO3 formed in the second conversion stage. In an embodiment, the gas produced in sulphur combustion chamber 1 of 10% by volume SO2 content passes through 2 into waste heat boiler 3. The cooled gas is fed through 4 into first contact hurdle 5 of catalytic converter 6 and leaves through 7 before mixing with cold dried air entering chamber 8 through 9. The gas flows to a heat exchanger 11 through 10 and is cooled with cold air fed from blower 12 through 13. The air is discharged from 11 through conduit 14 and through 15 into the second contact hurdle 16. After conversion of 85% the gas passes to heat exchanger 18 and steam generator or water preheater 19 and then through 20 to absorber 21. The SO3-freed gases leave 21 through conduit 22, are heated in heat exchanger 18 and pass to third contact hurdle 24 by way of conduit 23. The gases then enter heat exchanger 26 through conduit 25 and are cooled with cold air supplied through conduit 27 and discharged through 28. The cooled gases pass through 29 to the last contact hurdle. The completely catalysed gases leave through 31 to steam generator or feed water preheater 32 before passing by way of 33 to final absorber 34 before discharge through 35. The feed water preheater 19 and/or 32 may be associated with waste heat boiler 3. Cold air from conduit 14 is combined with that from conduit 28 and flows through 36 to combustion chamber 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1964M0061638 DE1567672B1 (en) | 1964-07-08 | 1964-07-08 | Process for the production of SO3 and / or sulfuric acid through the catalytic conversion of gases containing SO2 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1120232A true GB1120232A (en) | 1968-07-17 |
Family
ID=7310192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27536/65A Expired GB1120232A (en) | 1964-07-08 | 1965-06-29 | Process for producing sulphur trioxide and/or sulphur acid from gases which contain sulphur dioxide by the catalytic oxidation of the sulphur dioxide |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT294127B (en) |
BE (1) | BE666476A (en) |
CH (1) | CH502954A (en) |
DE (1) | DE1567672B1 (en) |
DK (1) | DK112868B (en) |
FI (2) | FI46493B (en) |
GB (1) | GB1120232A (en) |
NL (1) | NL147105B (en) |
SE (1) | SE326432B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3615197A (en) * | 1969-04-16 | 1971-10-26 | Ovitron Corp | Process for the production of sulfur trioxide |
CN102344348A (en) * | 2011-06-13 | 2012-02-08 | 苏州浩波科技股份有限公司 | Device for utilizing waste heat from production of liquid sulfur trioxide |
CN112723319A (en) * | 2021-01-05 | 2021-04-30 | 长沙有色冶金设计研究院有限公司 | High concentration of SO2Method for preparing sulfuric acid by flue gas separation pre-conversion |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190112781A (en) * | 1901-06-22 | 1902-04-24 | James Yate Johnson | Improvements in the Manufacture of Sulphuric Acid by the Contact Process |
US1809114A (en) * | 1924-11-24 | 1931-06-09 | Gen Chemical Corp | Process and apparatus for catalytic reactions |
US1789460A (en) * | 1926-11-10 | 1931-01-20 | Gen Chemical Corp | Process of and apparatus for converting so, to so |
DE479680C (en) * | 1927-05-05 | 1929-07-20 | Ver Fuer Chemische Und Metallu | Contact method for the preparation of sulfuric anhydride and sulfuric acid |
NL269314A (en) * | 1960-09-17 |
-
1964
- 1964-07-08 DE DE1964M0061638 patent/DE1567672B1/en not_active Withdrawn
-
1965
- 1965-05-24 CH CH723965A patent/CH502954A/en not_active IP Right Cessation
- 1965-06-02 AT AT500365A patent/AT294127B/en not_active IP Right Cessation
- 1965-06-18 FI FI1465/65A patent/FI46493B/en active
- 1965-06-18 FI FI651465A patent/FI46493C/en active
- 1965-06-29 GB GB27536/65A patent/GB1120232A/en not_active Expired
- 1965-07-06 NL NL656508651A patent/NL147105B/en unknown
- 1965-07-06 BE BE666476D patent/BE666476A/xx unknown
- 1965-07-07 SE SE08958/65A patent/SE326432B/xx unknown
- 1965-07-07 DK DK346365AA patent/DK112868B/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3615197A (en) * | 1969-04-16 | 1971-10-26 | Ovitron Corp | Process for the production of sulfur trioxide |
CN102344348A (en) * | 2011-06-13 | 2012-02-08 | 苏州浩波科技股份有限公司 | Device for utilizing waste heat from production of liquid sulfur trioxide |
CN112723319A (en) * | 2021-01-05 | 2021-04-30 | 长沙有色冶金设计研究院有限公司 | High concentration of SO2Method for preparing sulfuric acid by flue gas separation pre-conversion |
Also Published As
Publication number | Publication date |
---|---|
NL147105B (en) | 1975-09-15 |
NL6508651A (en) | 1966-01-10 |
BE666476A (en) | 1965-11-03 |
DE1567672B1 (en) | 1972-04-27 |
CH502954A (en) | 1971-02-15 |
SE326432B (en) | 1970-07-27 |
AT294127B (en) | 1971-11-10 |
DK112868B (en) | 1969-01-27 |
NL147105C (en) | 1976-02-16 |
FI46493B (en) | 1973-01-02 |
FI46493C (en) | 1974-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU563115A3 (en) | The method of obtaining sulfuric anhydride | |
GB1227846A (en) | ||
GB956049A (en) | A process for the production of sulphur trioxide | |
GB1202588A (en) | Process for catalytically converting so2-containing gases to so2 and sulphuric acid | |
GB884217A (en) | Nitric acid production | |
AU534159B2 (en) | Process of producing concentrated sulphuric acid | |
GB1124807A (en) | Improvements in and relating to the manufacture of sulphuric acid | |
GB1119672A (en) | Improvements in and relating to the sulphuric acid contact process | |
GB1058261A (en) | Process for the production of so, and/or sulphuric acid by the catalytic conversion of so-containing gases | |
GB1039350A (en) | Improvements in or relating to the production of so and/or sulphuric acid | |
ES448720A1 (en) | Process for producing sulphuric acid | |
GB1120232A (en) | Process for producing sulphur trioxide and/or sulphur acid from gases which contain sulphur dioxide by the catalytic oxidation of the sulphur dioxide | |
GB961904A (en) | Process for the production of sulphur trioxide | |
ES337098A1 (en) | A Process for Catalytically Converting SO2-Containing Gases to Produce SO3 and Sulphuric Acid | |
GB1039349A (en) | Improvements in or relating to the production of so and/or sulphuric acid | |
ES448719A1 (en) | Combined for producing and using sulphuric acid | |
US1405669A (en) | Manufacture of sulphuric anhydride and sulphuric acid | |
GB1120063A (en) | Process for producing sulphur trioxide and/or sulphuric acid from gases which contain sulphur dioxide by the catalytic oxidation of the sulphur dioxide | |
GB1107319A (en) | Gas absorption process | |
GB1278828A (en) | Improvements in or relating to the production of nitric acid | |
US2163371A (en) | Process of producing sulphuric acid | |
GB745627A (en) | Improvements relating to the manufacture of sulphuric acid by moist gas catalysis | |
US1477107A (en) | Method of and apparatus for the manufacture of sulphuric anhydride | |
FR2429748A1 (en) | Catalytic oxidn. of sulphur di:oxide to tri:oxide - in sulphuric acid mfr., by double conversion using wall heat exchange to increase heat exchange intensity | |
GB716264A (en) | Improvements in and relating to sulphur recovery |