GB1287570A - Method of dissolving solid carbonaceous material - Google Patents
Method of dissolving solid carbonaceous materialInfo
- Publication number
- GB1287570A GB1287570A GB6165168A GB6165168A GB1287570A GB 1287570 A GB1287570 A GB 1287570A GB 6165168 A GB6165168 A GB 6165168A GB 6165168 A GB6165168 A GB 6165168A GB 1287570 A GB1287570 A GB 1287570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- activator
- solvent
- nitrogen
- recycled
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
1287570 Extracting coal COAL INDUSTRY (PATENTS) Ltd 30 Dec 1969 [30 Dec 1968] 61651/68 Heading C5E A coal extract or solution is made by dissolving the coal at between 360‹ and 425‹ C. in an organic solvent, e.g. coal tar oil, to which has been added a cyclic activator, preferably nitrogenous. Solvent is recovered and recycled to the extraction step. The activator comprises either a compound having at least two carbocyclic rings or a heterocyclic ring having nitrogen as the heteroatom and which is capable of dehydrogenation which gives rise to an aromatic ring without rearrangement, or a compound having nitrogen in an aromatic ring. The activator preferably forms 3% to 5% b.w. of the solvent, which may range from 2 to 5 times the weight of the coal. Activators mentioned include 1,2,3,4-tetrahydroquinoline, indoline, indole, pyrrolidine, pyrazine, piperidine, and may be nitrogen-free, e.g. perhydrophenanthrene or 9,10-dihydroanthracene. Hydrogenated tar bases may be used. The activator may be added to used solvent, which may be topped up and recycled.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE789591D BE789591Q (en) | 1968-12-30 | PROCESS FOR DISSOLVING A SOLID CARBON MATERIAL | |
GB6165168A GB1287570A (en) | 1968-12-30 | 1968-12-30 | Method of dissolving solid carbonaceous material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6165168A GB1287570A (en) | 1968-12-30 | 1968-12-30 | Method of dissolving solid carbonaceous material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1287570A true GB1287570A (en) | 1972-08-31 |
Family
ID=10487289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6165168A Expired GB1287570A (en) | 1968-12-30 | 1968-12-30 | Method of dissolving solid carbonaceous material |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE789591Q (en) |
GB (1) | GB1287570A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123347A (en) * | 1976-12-22 | 1978-10-31 | Exxon Research & Engineering Co. | Coal liquefaction process |
US4272356A (en) * | 1980-04-07 | 1981-06-09 | Stiller Alfred H | Coal extraction process |
US4347116A (en) * | 1977-06-08 | 1982-08-31 | Mobil Oil Corporation | Two-stage coal liquefaction |
US4374725A (en) * | 1977-06-08 | 1983-02-22 | Electric Power Research Institute | Process for coal liquefaction |
US4385981A (en) * | 1980-07-25 | 1983-05-31 | Exxon Research And Engineering Co. | Liquefaction of carbonous materials with vapor phase hydrogen donor solvents |
US4405437A (en) * | 1982-01-11 | 1983-09-20 | Electric Power Research Institute | Process for coal liquefaction employing a superior coal liquefaction process solvent |
US4521291A (en) * | 1982-02-09 | 1985-06-04 | Coal Industry (Patents) Limited | Coal extraction |
-
0
- BE BE789591D patent/BE789591Q/en active
-
1968
- 1968-12-30 GB GB6165168A patent/GB1287570A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4123347A (en) * | 1976-12-22 | 1978-10-31 | Exxon Research & Engineering Co. | Coal liquefaction process |
US4347116A (en) * | 1977-06-08 | 1982-08-31 | Mobil Oil Corporation | Two-stage coal liquefaction |
US4374725A (en) * | 1977-06-08 | 1983-02-22 | Electric Power Research Institute | Process for coal liquefaction |
US4272356A (en) * | 1980-04-07 | 1981-06-09 | Stiller Alfred H | Coal extraction process |
US4385981A (en) * | 1980-07-25 | 1983-05-31 | Exxon Research And Engineering Co. | Liquefaction of carbonous materials with vapor phase hydrogen donor solvents |
US4405437A (en) * | 1982-01-11 | 1983-09-20 | Electric Power Research Institute | Process for coal liquefaction employing a superior coal liquefaction process solvent |
US4521291A (en) * | 1982-02-09 | 1985-06-04 | Coal Industry (Patents) Limited | Coal extraction |
Also Published As
Publication number | Publication date |
---|---|
BE789591Q (en) | 1973-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |