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:
Dec. 16, 2014
Filed:
Aug. 07, 2012
Rajeswar R. Gattupalli, Arlington Heights, IL (US);
Grant H. Yokomizo, Mt. Prospect, IL (US);
Bart Dziabala, Hickory Hills, IL (US);
Rajeswar R. Gattupalli, Arlington Heights, IL (US);
Grant H. Yokomizo, Mt. Prospect, IL (US);
Bart Dziabala, Hickory Hills, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process for slurry hydrocracking catalyst recovery is described. In one embodiment, the process includes separating effluent from a slurry hydrocracking zone into a first portion comprising solvent and clarified pitch and a second portion comprising pitch and catalyst. The second portion is contacted with an acid to leach the catalyst out of the pitch forming an aqueous solution and pitch residue. The aqueous solution is contacted with an anion to form an insoluble salt which is the catalyst.