Process for hydrogenation of hydrocarbon tars

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking

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208108, 208 44, 208 57, 208102, 208144, 260668R, C10G 1306, C07C 1502

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active

041014162

ABSTRACT:
Hydrocarbon tars of high asphaltene content such as tars obtained from pyrolysis of coal are dissolved in a solvent formed from the hydrogenation of the coal tars, and the resultant mixture hydrogenated in the presence of a catalyst at a pressure from about 1500 to 5000 psig at a temperature from about 500.degree. F to about the critical temperature of the solvent to form a light hydrocarbon as a solvent for the tars. Hydrogen content is at least three times the amount of hydrogen consumed.

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