GB1287570A - Method of dissolving solid carbonaceous material - Google Patents

Method of dissolving solid carbonaceous material

Info

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
Application number
GB6165168A
Inventor
Terence Geoffrey Martin
William Sydney Durham Wise
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE789591D priority Critical patent/BE789591Q/en
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB6165168A priority patent/GB1287570A/en
Publication of GB1287570A publication Critical patent/GB1287570A/en
Expired legal-status Critical Current

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.
GB6165168A 1968-12-30 1968-12-30 Method of dissolving solid carbonaceous material Expired GB1287570A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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