GB857111A - Improvements relating to the recovery of sulphur values of acid sludge - Google Patents
Improvements relating to the recovery of sulphur values of acid sludgeInfo
- Publication number
- GB857111A GB857111A GB24365/58A GB2436558A GB857111A GB 857111 A GB857111 A GB 857111A GB 24365/58 A GB24365/58 A GB 24365/58A GB 2436558 A GB2436558 A GB 2436558A GB 857111 A GB857111 A GB 857111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coke
- containing gases
- gases
- heater
- heating
- 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
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid
-
- 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)
- Treatment Of Sludge (AREA)
Abstract
In the recovery of sulphur values from acid sludges containing H2SO4 by decomposition by <PICT:0857111/III/1> contact with hot coke to form SO2 and coke, where the combustible components of the product gases are oxidised in a combustion chamber, the coke is heated at least in part by means of direct contact with a mixture of hot SO2-containing gases from the combustion chamber and recycled cool SO2-containing gases from heating the coke. The coke may be heated in a static bed, moving bed, fluidised bed, or mechanically agitated bed, a rotary kiln, or conveyer, or elevator. The direct gas heating of the coke may be used in combination with partial oxidation of the coke, indirect heating, or direct heating from combustion products from an externally fired furnace. In Fig. 2 the SO2-containing gases from coke heater 12 pass through 4 and part is recycled through 5. The remainder of the gases pass into combustion chamber 6 where air and, if necessary, fuel are added at 7, 8 to oxidise combustible constituents. The SO2-containing gases are removed at 9 and part is withdrawn as product at 10, and part returned through 11 with the SO2-containing gases by-passed through 5 to the coke heater. Heated coke is passed through 13 to decomposer 14 where acid sludge enters at 15. Part of the coke is withdrawn at 16 and part is returned to the heater through 17. The SO2-containing gases pass to hydrocarbon removal at 18 where condensible hydrocarbons are extracted in a spray tower or heat exchanger. The remaining SO2-containing gases are passed at 19 to the heating gases before, or preferably after, the coke heater. In an alternative apparatus (Fig. 1 not shown), a separate decomposer is not used, and the acid sludge is passed to a combined coke heater and decomposer, and means for hydrocarbon condensation is not provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24365/58A GB857111A (en) | 1958-07-29 | 1958-07-29 | Improvements relating to the recovery of sulphur values of acid sludge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24365/58A GB857111A (en) | 1958-07-29 | 1958-07-29 | Improvements relating to the recovery of sulphur values of acid sludge |
Publications (1)
Publication Number | Publication Date |
---|---|
GB857111A true GB857111A (en) | 1960-12-29 |
Family
ID=10210578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24365/58A Expired GB857111A (en) | 1958-07-29 | 1958-07-29 | Improvements relating to the recovery of sulphur values of acid sludge |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB857111A (en) |
-
1958
- 1958-07-29 GB GB24365/58A patent/GB857111A/en not_active Expired
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