Invention Grant
- Patent Title: Ethylene expansion for low temperature refrigeration in polyethylene vent recovery
- Patent Title (中): 乙烯膨胀用于低温制冷在聚乙烯排气回收
-
Application No.: US13808632Application Date: 2011-07-07
-
Publication No.: US08835576B2Publication Date: 2014-09-16
- Inventor: Randall L. Force , Donald A. Fischer
- Applicant: Randall L. Force , Donald A. Fischer
- Assignee: Univation Technologies, LLC
- Current Assignee: Univation Technologies, LLC
- Agent Jennifer A. Schmidt; Kristina Leavitt
- International Application: PCT/US2011/043123 WO 20110707
- International Announcement: WO2012/006387 WO 20120112
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F110/02 ; B01J8/18 ; F25J3/00 ; C08F6/00 ; F25J3/06 ; F25J3/08
Abstract:
Provided are processes and systems for recovering hydrocarbons in a vent stream from a polymerization process. The methods and systems may include the recovery of an olefin monomer from a polymerization vent gas using ethylene refrigeration to condense and recover the olefin monomers from the vent gas. In some embodiments, the methods and systems may also include compression and condensation of polymerization vent gas, recompression of ethylene refrigerant, and use of an expander compressor turbine device for ethylene refrigeration.
Public/Granted literature
- US20130125581A1 Ethylene Expansion for Low Temperature Refrigeration in Polyethylene Vent Recovery Public/Granted day:2013-05-23
Information query
