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:
Aug. 02, 2011
Filed:
Mar. 05, 2008
Timothy F. Kinn, Houston, TX (US);
Kevin J. Knob, Seabrook, TX (US);
Timothy F. Kinn, Houston, TX (US);
Kevin J. Knob, Seabrook, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A process of producing PX comprising providing a C+ feedstock, the C+ feedstock has Chydrocarbons and C+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C+ feedstock, which the C+ feedstock having a C+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C+ feedstock.