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:
Jul. 25, 1989
Filed:
Oct. 07, 1987
Klaus Kretschmar, Dorsten, DE;
Ludwig Merz, Recklinghausen, DE;
Klaus Niemann, Oberhausen, DE;
Jose Guitian, Dorsten, DE;
Julio Krasuk, Duesseldorf, DE;
Franzo Marruffo, Duesseldorf, DE;
Veba OEL Entwicklungs-Gesellschaft mbH, Gelsenkirchen, DE;
Intevep S. A., Estado Miranda, VE;
Abstract
A process for the hydrogenation of heavy oils, residual oils, waste oils, used oils, shell oils, and tar sand oils by hydrogenating a slurry of the oil at a partial hydrogen pressure of 50-300 bar, a temperature of 250.degree.-500.degree. C., a space velocity of 0.1-5 T/m.sup.3 h, and a gas/liquid ratio of 100-10000 Nm.sup.3/ T, wherein the additive comprises two different grain size portions, a fine grain portion having a grain size of 90 microns or less and a coarse grain portion having a grain size of 100-1000 microns.