(19)
(11) EP 0 082 586 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.10.1984 Bulletin 1984/41

(43) Date of publication A2:
29.06.1983 Bulletin 1983/26

(21) Application number: 82304209

(22) Date of filing: 10.08.1982
(84) Designated Contracting States:
DE FR GB

(30) Priority: 21.12.1981 US 332583

(71) Applicant: EXXON RESEARCH AND ENGINEERING COMPANY
 ()

(72) Inventor:
  • Bauman, Richard Frank
     ()

   


(54) An improved process for the liquefaction of solid carbonaceous materials


(57) An improved process for liquefying solid carbonaceous materials wherein liquefaction yields are increased by extracting the normally solid bottoms product with a solvent containing donatable hydrogen. The extraction is accomplished at a temperature within the range from about 50 to about 600°F and at a pressure within the range from about 0 to about 750 psig and at least a portion of the extract is recycled to the liquefaction reaction zone.






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