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U.S. Department of Energy
Office of Scientific and Technical Information

Conversion and coking of hydrocarbons

Patent ·
OSTI ID:7280459
A process for the pyrolytic conversion and coking of a charging stock mixture of finely divided carbonaceous material in hydrocarbon oil comprises subjecting the mixture to elevated temperature conditions under non-coking conditions, introducing the heated products into a coking zone wherein the residue is coked in a relatively thin layer upon a highly heated surface, subjecting the vaporous products from the coking to fractionation whereby their fractions boiling above the range of the desired final light distillate product are condensed as intermediate liquid products. The fractionated vapors are subjected to condensation, and the high boiling components of the intermediate liquid products of the coking operation are returned for further treatment with the charging stock mixture. Simultaneously the selected lower boiling components of the intermediate liquid products of the coking operation are subjected to conversion under independently controlled conditions. The resulting vaporous and residual liquid conversion products are separated, and the residual liquid is returned for further treatment with the charging stock mixture. The vaporous conversion products are subjected to fractionation whereby their insufficiently converted components are condensed as reflux condensate, and the fractionated vapors of the desired end boiling point are subjected to condensation, while the reflux condensation is returned for further treatment in the same system.
Assignee:
Universal Oil Products Co.
Patent Number(s):
US 2098033
OSTI ID:
7280459
Country of Publication:
United States
Language:
English