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. 18, 1976
Filed:
Jun. 24, 1974
Sun W Chun, Murrysville, PA (US);
Donald C Cronauer, Gibsonia, PA (US);
Thomas W Leslie, Blawnox, PA (US);
Gulf Research & Development Company, Pittsburgh, PA (US);
Abstract
A process is provided for the conversion (including upgrading) of solid carbonaceous materials, and in particular for the hydrogenation of coal slurries. The process comprises passing a slurry composed of solid carbonaceous material and solvent, together with hydrogen, through a reaction vessel that contains a plurality of reaction zones separated by porous partitions. A portion of said zones is adapted to contain a solid particulate hydrogenation catalyst which will not pass through said porous partitions. The remainder of said zones forms substantially unobstructed passageways through said reaction vessel. The volumetric proportion of substantially unobstructed passageways to catalyst zones is preferably from about 20:1 to about 1:10.