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. 28, 2019
Filed:
May. 18, 2017
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Haiyan Wang, Hoffman Estates, IL (US);
Richard K. Hoehn, Mount Prospect, IL (US);
Xin X. Zhu, Long Grove, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G 65/12 (2006.01); C10G 45/44 (2006.01);
U.S. Cl.
CPC ...
C10G 65/12 (2013.01); C10G 45/44 (2013.01); C10G 2300/1092 (2013.01);
Abstract
A process and apparatus for two stage hydrocracking saturates aromatics from the first stage hydrocracking unit to prevent production of HPNA's. The saturated HPNA's can be hydrocracked in the second stage to minimize or eliminate purged unconverted oil to approach or obtain maximum conversion. In an aspect, the second stage hydrocracking reactor and hydrotreating reactor may be located in the same vessel.