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:
Apr. 26, 2022
Filed:
Jul. 16, 2020
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Kenneth A. Dooley, Porter, TX (US);
Jeffrey S. Lowell, Huffman, TX (US);
Joseph A. Curren, Houston, TX (US);
Scott E. Kufeld, Houston, TX (US);
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 6/10 (2006.01); B01J 19/24 (2006.01); C08F 2/34 (2006.01); C08F 6/00 (2006.01);
U.S. Cl.
CPC ...
C08F 6/10 (2013.01); B01J 19/2435 (2013.01); C08F 2/34 (2013.01); C08F 6/001 (2013.01); C08F 6/006 (2013.01);
Abstract
The present invention discloses methods for removing volatile components from an ethylene polymer effluent stream from a polymerization reactor, and related polyethylene recovery and volatile removal systems. In these methods and systems, the polymer solids temperature is increased significantly prior to introduction of the polymer solids into a purge column for the final stripping of volatile components from the polymer solids.