GB680497A - Improvements in or relating to processes for producing a charcoal substitute - Google Patents
Improvements in or relating to processes for producing a charcoal substituteInfo
- Publication number
- GB680497A GB680497A GB20690/50A GB2069050A GB680497A GB 680497 A GB680497 A GB 680497A GB 20690/50 A GB20690/50 A GB 20690/50A GB 2069050 A GB2069050 A GB 2069050A GB 680497 A GB680497 A GB 680497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- oxidized
- reaction chamber
- per cent
- thermal treatment
- 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
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A charcoal substitute is produced by subjecting bituminous coal of particle size less than 0.2 mm. to a thermal treatment in a reaction chamber with an oxidizing gas containing free oxygen at a temperature below the ignition temperature of the coal, e.g. 200-300 DEG C. the thermal treatment being carried out in such a way that the waste gas from the reaction chamber still contains perceptible quantities of oxygen, and subsequently subjecting the pre-oxidized product to carbonization in the absence of air at say 800-1000 DEG C. Coal dressing waste, e.g. separation dust or slurries from washing, containing 20-28 per cent volatile matter and having a low ash content, or which have been de-ashed, may be continuously or batch oxidized at reduced, atmospheric, or superatmospheric pressure for 1-24 hours, with cooling if necessary. The coal should be agitated during oxidation, e.g. by use of a rotary furnace or of a fluidized solids technique. The oxidized product may be briquetted with say 15-20 per cent binding agent, e.g. tar, or pitch, before carbonization. The carbonized product is particularly suitable for treatment with sulphur vapour at 850 DEG C. to form carbon disulphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20690/50A GB680497A (en) | 1950-08-21 | 1950-08-21 | Improvements in or relating to processes for producing a charcoal substitute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20690/50A GB680497A (en) | 1950-08-21 | 1950-08-21 | Improvements in or relating to processes for producing a charcoal substitute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB680497A true GB680497A (en) | 1952-10-08 |
Family
ID=10150058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20690/50A Expired GB680497A (en) | 1950-08-21 | 1950-08-21 | Improvements in or relating to processes for producing a charcoal substitute |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB680497A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1103890B (en) * | 1956-08-30 | 1961-04-06 | Bergwerksverband Ges Mit Besch | Process for the production of electrode coke |
| US4002533A (en) * | 1972-07-06 | 1977-01-11 | Westvaco Corporation | Two-step process for conditioning sized coal and resulting product |
-
1950
- 1950-08-21 GB GB20690/50A patent/GB680497A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1103890B (en) * | 1956-08-30 | 1961-04-06 | Bergwerksverband Ges Mit Besch | Process for the production of electrode coke |
| US4002533A (en) * | 1972-07-06 | 1977-01-11 | Westvaco Corporation | Two-step process for conditioning sized coal and resulting product |
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