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:
Nov. 07, 2023
Filed:
Aug. 20, 2020
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Douglas J. Picou, Baton Rouge, LA (US);
Keith W. Trapp, Kingwood, TX (US);
Kelly M. Forcht, Louisville, KY (US);
Asha C. Quant, Houston, TX (US);
Ariana L. Poindexter, Houston, TX (US);
Maxwell T. Mcgee, Baton Rouge, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
A process and system for maintaining optimum polymerization production in a loop polymerization reactor by continuously and periodically obtaining polymerization results, such as melt index (MI), production rate and ash content of the polymer produced, determining whether each of the results is within desired ranges, storing and averaging recently obtained results in a database within a reaction rate controller program, and when one of the results is out of the desired range modifying at least one reaction parameter set-point such as monomer concentration, catalyst feed rate and reactor temperature to drive any out-of-range polymerization result(s) toward the desired range for that result.