Invention Grant
- Patent Title: Ethylene separation with temperature swing adsorption
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Application No.: US14795784Application Date: 2015-07-09
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Publication No.: US09339755B2Publication Date: 2016-05-17
- Inventor: Lei Ji , Ai-Fu Chang
- Applicant: Chevron Phillips Chemical Company LP
- Applicant Address: US TX The Woodlands
- Assignee: Chevron Phillips Chemical Company LP
- Current Assignee: Chevron Phillips Chemical Company LP
- Current Assignee Address: US TX The Woodlands
- Agency: Conley Rose, P.C.
- Agent Rodney B. Carroll; Monte R. Rhodes
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F210/00 ; B01D53/04 ; C07C7/13 ; C08F110/02 ; B01J19/00 ; C07C7/12 ; B01J8/08

Abstract:
A process for component separation in a polymer production system, comprising (a) separating a polymerization product stream into a gas stream and a polymer stream, (b) contacting the polymer stream with a purge gas to yield a purged polymer and a spent purge gas comprising purge gas, ethylene, and ethane, (c) contacting the spent purge gas with a temperature swing adsorber contactor (TSAC) to yield a loaded TSAC, wherein at least a portion of the ethylene is adsorbed by the TSAC at a first temperature to yield TSAC-adsorbed ethylene, wherein a portion of the ethane is adsorbed by the TSAC at the first temperature to yield TSAC-adsorbed ethane, (d) heating the loaded TSAC to a second temperature to yield a regenerated TSAC, and (e) contacting the regenerated TSAC with a sweeping gas stream to yield a recovered adsorbed gas stream comprising sweeping gas, recovered ethylene and recovered ethane.
Public/Granted literature
- US20160030878A1 Ethylene Separation with Temperature Swing Adsorption Public/Granted day:2016-02-04
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