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:
Sep. 19, 2023
Filed:
Aug. 12, 2020
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Paul Podsiadlo, Humble, TX (US);
Jeffrey L. Andrews, Houston, TX (US);
Michel Molinier, Houston, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/12 (2006.01); C07C 7/04 (2006.01); C07C 7/00 (2006.01); C07C 5/27 (2006.01);
U.S. Cl.
CPC ...
C07C 6/126 (2013.01); C07C 5/2732 (2013.01); C07C 7/005 (2013.01); C07C 7/04 (2013.01);
Abstract
A transalkylation process co-feeds benzene at a relatively high proportion with C9+ aromatics in a feed stream to a transalkylation reactor. At lower proportions (≤5 wt %) of benzene, ring loss is greater for benzene than toluene and ring loss is increased by increasing the proportion of benzene in the feed stream. When the benzene is co-fed in a proportion sufficiently greater than 5 weight percent of the feed stream, ring loss is unexpectedly reduced.