FR2007886A1 - Sulphuric acid production - Google Patents
Sulphuric acid productionInfo
- Publication number
- FR2007886A1 FR2007886A1 FR6914204A FR6914204A FR2007886A1 FR 2007886 A1 FR2007886 A1 FR 2007886A1 FR 6914204 A FR6914204 A FR 6914204A FR 6914204 A FR6914204 A FR 6914204A FR 2007886 A1 FR2007886 A1 FR 2007886A1
- Authority
- FR
- France
- Prior art keywords
- stage
- pref
- gas turbine
- steps
- sulphuric acid
- 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.)
- Withdrawn
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 title abstract 3
- 239000001117 sulphuric acid Substances 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- -1 iron pyrites Chemical compound 0.000 abstract 1
- 229910052976 metal sulfide Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
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
-
- 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
-
- 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)
- Treating Waste Gases (AREA)
Abstract
Sulphuric acid production.. F6A. Comprises the following stages: (a) roasting sulphur or metal sulphides, such as iron pyrites, with an excess of air or oxygen to give SO2, (b) passing the resulting gases containing SO2 and excess air or O2 to a catalyst to convert SO2 to SO3, (c) absorption of the SO3 in H2SO4 and (d) expanding the gaseous effluents from (c) in a gas turbine to recover energy from the process. Steps (a), (b) and (c) are conducted at superatmospheric pressure, pref. 5-15 bars. Pref. gas leaving stage (a) is cooled by heat exchange or expansion in a gas turbine before passing to (b). Stage (b) may be conducted in two or more steps between which heat is recovered. One or more absorption stages may be interposed between two conversion steps. Gases leaving stage (c) may be used to extract heat from the effluent gases from stage (b) and are pref. burnt before passing to the gas turbine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2137568 | 1968-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2007886A1 true FR2007886A1 (en) | 1970-01-16 |
Family
ID=10161867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6914204A Withdrawn FR2007886A1 (en) | 1968-05-06 | 1969-05-05 | Sulphuric acid production |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1922788A1 (en) |
| FR (1) | FR2007886A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR226384A1 (en) * | 1980-11-28 | 1982-06-30 | Chemithon Corp | METHOD FOR PRODUCING GAS CONSISTING OF SULFUR OXIDE AND AIR |
| SE8404586L (en) * | 1984-09-13 | 1986-03-14 | Orvar Elmqvist | CHEMICAL APPLICATION |
-
1969
- 1969-05-05 FR FR6914204A patent/FR2007886A1/en not_active Withdrawn
- 1969-05-05 DE DE19691922788 patent/DE1922788A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1922788A1 (en) | 1969-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |