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. 09, 2025
Filed:
Mar. 12, 2021
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Eric D. Metzger, Houston, TX (US);
Mayank Shekhar, Houston, TX (US);
Wenyih F. Lai, Bridgewater, NJ (US);
Paul Podsiadlo, Spring, TX (US);
Dominick A. Zurlo, Easton, PA (US);
Kathleen M. Keville, Beaumont, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Processes for converting C8 aromatic hydrocarbons. In some embodiments, the process can include feeding a gaseous hydrocarbon feed that can include meta-xylene, ortho-xylene, or both into a conversion zone. The process can also include contacting the gaseous hydrocarbon feed with a catalyst that can include a ZSM-11 zeolite in the conversion zone under conversion conditions to effect isomerization of at least a portion of any meta-xylene, or at least a portion of any ortho-xylene, or both to produce a conversion product rich in para-xylene. In some embodiments, the ZSM-11 zeolite can have an alpha value of 1 to 3,000 and a molar ratio of silica to alumina of from 15 to 200.