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. 07, 2015
Filed:
Oct. 06, 2010
Steven F. Zink, Westmont, IL (US);
Tom Kalnes, LaGrange, IL (US);
Mark Vanwees, Des Plaines, IL (US);
Steven F. Zink, Westmont, IL (US);
Tom Kalnes, LaGrange, IL (US);
Mark VanWees, Des Plaines, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
Embodiments of a process for improving a re-refined lube oil stream are provided. The process comprises the steps of introducing a gas stream comprising hydrogen (H) and the re-refined lube oil stream comprising hydroprocessed used lube oil to a hydrogenation reactor that contain Group VIII catalyst. A gas to oil feed ratio rate of from about 30 to about 100 NmH/mis used to introduce the streams to the reactor. The hydroprocessed used lube oil is hydrogenated with the Hin the reactor such that an effluent is formed containing hydrogenated re-refined lube oil having about 2 wt. % or less of aromatics and about 55 wt. % or less of naphthenes. The reactor is operating at a temperature of from about 250 to about 300° C.