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.

Date of Patent:
Nov. 17, 2015

Filed:

Apr. 30, 2015
Applicant:

Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);

Inventors:

Scott E. Kufeld, Houston, TX (US);

John D. Hottovy, Porter, TX (US);

Ai-fu Chang, Humble, TX (US);

Assignee:

CHEVRON PHILLIPS CHEMICAL COMPANY LP, The Woodlands, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/11 (2006.01); C07C 7/00 (2006.01); C07C 7/156 (2006.01); B01D 53/14 (2006.01); C07C 7/04 (2006.01); C07C 5/32 (2006.01); C07C 4/02 (2006.01); C07C 4/06 (2006.01); C08F 110/02 (2006.01);
U.S. Cl.
CPC ...
C07C 7/005 (2013.01); C07C 4/02 (2013.01); C07C 4/06 (2013.01); C07C 5/32 (2013.01); C07C 7/04 (2013.01); C07C 7/11 (2013.01);
Abstract

A process for component separation in a polymer production system, comprising separating a polymerization product stream into a gas stream and a polymer stream, wherein the gas stream comprises ethane and unreacted ethylene, distilling the gas stream into a light hydrocarbon stream, wherein the light hydrocarbon stream comprises ethane and unreacted ethylene, contacting the light hydrocarbon stream with an absorption solvent system, wherein at least a portion of the unreacted ethylene from the light hydrocarbon stream is absorbed by the absorption solvent system, and recovering a waste gas stream from the absorption solvent system, wherein the waste gas stream comprises ethane, hydrogen, or combinations thereof.


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