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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.:

US 10118878 B1

PDFFull Text
Date of Patent:
Nov. 06, 2018

Filed:

Aug. 03, 2017

Process for increasing xylene isomer to benzene ratio

Applicant:

Uop Llc, Des Plaines, IL (US);

Inventors:

Rajeswar R. Gattupalli, Buffalo Grove, IL (US);

Mohamed S. M. Shakur, Hoffman Estates, IL (US);

Naiyl A. Rashid, Carpentersville, IL (US);

Assignee:

UOP LLC, Des Plaines, IL (US);

Attorney:
Primary Examiner:

Brian A McCaig

Assistant Examiner:

Jason Y Chong

Int. Cl.
CPC ...
C07C 15/08 (2006.01); C07C 6/12 (2006.01); B01D 3/14 (2006.01); C07C 5/25 (2006.01); C07C 5/27 (2006.01); C07C 7/04 (2006.01); C07C 7/12 (2006.01); C10G 7/00 (2006.01); C10G 45/58 (2006.01); C10G 67/04 (2006.01); C07C 15/04 (2006.01); C07C 15/06 (2006.01); C07C 15/20 (2006.01);
U.S. Cl.
CPC ...
C07C 15/08 (2013.01); B01D 3/143 (2013.01); C07C 5/25 (2013.01); C07C 5/2737 (2013.01); C07C 6/12 (2013.01); C07C 6/126 (2013.01); C07C 7/04 (2013.01); C07C 7/12 (2013.01); C10G 7/00 (2013.01); C10G 45/58 (2013.01); C10G 67/0409 (2013.01); C10G 67/0445 (2013.01); C07C 15/04 (2013.01); C07C 15/06 (2013.01); C07C 15/20 (2013.01);
Abstract

Apparatuses and processes are provided for regulating C7 and C8 feed to an aromatics complex to increase the ratio of a selected xylene isomer to benzene ratio. Reformate may be split into three cuts in a splitter column. A side cut stream comprises predominantly C7 hydrocarbons and a bottoms steam from the splitter column comprises predominantly C8+ hydrocarbons. The relative proportion of the C7 and C8+ hydrocarbon streams sent to the aromatics complex are metered to determine the resulting ratio of a selected xylene isomer to benzene produced by the aromatics complex.

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