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:
Sep. 25, 1984
Filed:
Jan. 29, 1982
Heribert Kuerten, Neustadt, DE;
Hubert Puestel, Dannstadt-Schauernheim, DE;
Rudi Schulz, Fussgoenheim, DE;
Georg Weber, Ludwigshafen, DE;
BASF Aktiengesellschaft, , DE;
Abstract
A process for the continuous preparation of hydrocarbon oils from coal by cracking hydrogenation under pressure in two stages. In the first stage (carried out in the bottom phase) milled coal, together with finely divided catalysts, is pasted with an oil mixture, and the slurry is hydrogenated by heating to 380.degree.-440.degree. C. under a hydrogen pressure of from 200 to 700 bar. The gaseous and liquid reaction products are separated from the solid products and subjected to a further hydrogenation (this time in the gas phase), using a fixed hydrogenation catalyst. The heat of the hydrogenated product is indirectly and separately transferred to the coal/oil mixture and the hydrogen by heat exchange in not less than three stages.