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. 29, 2011
Filed:
Apr. 21, 2009
Fathi D. Hussein, Cross Lanes, WV (US);
Ping Cai, Lake Jackson, TX (US);
Jose F. Cevallos-candau, Charleston, WV (US);
Ian D. Burdett, Charleston, WV (US);
W. Scott Hamilton, S. Charleston, WV (US);
Daniel N. Thomas, Jr., Scott Depot, WV (US);
Fathi D. Hussein, Cross Lanes, WV (US);
Ping Cai, Lake Jackson, TX (US);
Jose F. Cevallos-Candau, Charleston, WV (US);
Ian D. Burdett, Charleston, WV (US);
W. Scott Hamilton, S. Charleston, WV (US);
Daniel N. Thomas, Jr., Scott Depot, WV (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
A process for the polymerization of olefin's, including: introducing an olefin and a polymerization catalyst into a polymerization reactor to form a polyolefin, the polymerization reactor including: a fluidized bed region having a top and a bottom; and a motive bed region; wherein a first end of the motive bed region is fluidly connected to the top of the fluidized bed region; and wherein a second end of the motive bed region is fluidly connected to the bottom of the fluidized bed region; and wherein a diameter of the fluidized bed region is greater than a diameter of the motive bed region; circulating at least a portion of the olefin, the catalyst, and the polyolefin through the fluidized bed region and the motive bed region; maintaining a dense-phase fluidized bed within the fluidized bed region; recovering polyolefin from the fluidized bed region, is provided. A reactor system directed to the process is also provided.