Process for manufacture of solvent for coal liquefaction

Details Process for manufacture of solvent for coal liquefaction Process for manufacture of solvent for coal liquefaction

1980-06-09

1982-04-27

Tufariello, T. M.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 8LE, C10G 700, C10G 104

Patent

active

043269460

ABSTRACT:
A process of producing a solvent useful in coal liquefaction which includes separating the heavy liquid produced from the liquefaction of coal into a fraction boiling at 200.degree. to 210.degree. C., a fraction boiling at 211.degree. to 230.degree. C., and a fraction boiling at not less than 231.degree. subjecting the fraction boiling at 211.degree. to 230.degree. C. to a hydrogenation treatment to produce a hydrogenated fraction, mixing the hydrogenated fraction with the fraction boiling at 200.degree. to 210.degree. C. to form a resultant mixture, and mixing a portion of the resultant mixture with a portion of the fraction boiling at not less than 231.degree. C. Alternately, the solvent is produced from the heavy liquid by separating it into a fraction boiling at 200.degree. C. to 210.degree. C., a fraction boiling at 211.degree. C. to 230.degree. C., a fraction boiling at 231.degree. C. to 250.degree. C., a fraction boiling at 251.degree. C. to 350.degree. C. and a fraction boiling at not less than 351.degree. C., subjecting each of the middle three fractions to a hydrogenation treatment to form three hydrogenated fractions, mixing the three hydrogenated fractions with the fraction boiling at 200.degree. C. to 210.degree. C. to form a resultant mixture, and mixing the resultant mixture with a portion of the fraction boiling at not less than 351.degree. C.

REFERENCES:
patent: 3726785 (1973-04-01), Keller
patent: 4051012 (1977-09-01), Plumlee
patent: 4111786 (1978-09-01), Sugimura

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