Continuous process for the production of solvents for coal lique

Details Continuous process for the production of solvents for coal lique Continuous process for the production of solvents for coal lique

1982-09-10

1985-01-22

Lovering, Richard D.

Compositions

Solvents

585269, 585270, 208 8LE, B01F 100, C10G 108

Patent

active

044950896

ABSTRACT:
A continuous process for the production of a solvent for use in the liquefaction of coal is described. The process comprises hydrogenating a mixture of 100 parts by weight of a hydrocarbon mixture and from 0.2 to 10 parts by weight of phenol and/or alkylphenol. The hydrocarbon mixture contains at least 50% by weight of a polycyclic (from tricyclic to pentacyclic) aromatic hydrocarbon or its alkyl derivative. The hydrocarbon mixture is distilled away in a proportion of at least 80% when heated at a temperature of from 320.degree. to 550.degree. C. The hydrogenation of the hydrocarbon mixture and phenol and/or alkylphenol may be carried out with or without the addition of from 0.05 to 0.5% by weight (calculated as sulfur) of an easily desulfurizable sulfur compound in a high temperature and pressure hydrogen atmosphere in the presence of a catalyst containing the sulfide(s) of Group VIII metal and/or Group VI metal of the Periodic Table to prepare a partially hydrogenated product resulting from the partial hydrogenation of the aromatic ring of the polycyclic aromatic hydrocarbon or its alkyl derivative.

REFERENCES:
patent: 3761397 (1973-09-01), Gatti
patent: 4133646 (1979-01-01), Farcasiu
patent: 4312746 (1982-01-01), Tsai

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