The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1985
Filed:
Nov. 23, 1982
Andre Deschamps, Noisy le Roi, FR;
Sigismond Franckowiak, Rueil-Malmaison, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
A carbonaceous material is subjected, in admixture with a hydrogenated recycle oil, to hydrogenation in two successive steps at respective temperature ranges of 350.degree.-470.degree. C. and 600.degree.-1000.degree. C., under a pressure of at least 20 bars, the resulting product being separated into a carbonaceous solid residue, which is subsequently treated with oxygen and steam so as to obtain a hydrogen-containing reducing gas to be used in the second of the two hydrogenation steps, a fraction distilling in major part above 150.degree. C. which, after hydrogenation, forms the recycle oil admixed with the starting carbonaceous material, and a fraction containing the desired lower paraffinic hydrocarbons and monocyclic aromatic hydrocarbons, distilling in major part below 150.degree. C.