Invention Grant
- Patent Title: Control of fouling in high pressure polyethylene manufacture
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Application No.: US15573974Application Date: 2016-05-13
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Publication No.: US10478796B2Publication Date: 2019-11-19
- Inventor: Henri A. Lammens , Paul J. Clymans , Philip H. Cornelissen
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Agent Leandro Arechederra, III; Kristina M. Okafor
- Priority: EP15180118 20150807
- International Application: PCT/US2016/032371 WO 20160513
- International Announcement: WO2017/003566 WO 20170105
- Main IPC: B01J19/00
- IPC: B01J19/00 ; B01J4/00 ; C08F110/02 ; B01J19/06 ; C08F2/38

Abstract:
Systems and processes for controlling fouling in the manufacture of ethylene polymers and copolymers at high pressure. Disclosed is a high pressure polyethylene polymerization system comprising a reactor, a primary compressor, and a secondary compressor, the secondary compressor comprising: a) a first stage, wherein the first stage comprises at least two cylinders, and the discharge pipes of the at least two cylinders are fluidly connected by a first stage discharge cross-connect pipe; b) a second stage; c) an interstage; and d) a first cooler applied to the interstage piping starting at a location within 10 meters downstream of the first stage discharge cross-connect pipe.
Public/Granted literature
- US20180290120A1 Control of Fouling in High Pressure Polyethylene Manufacture Public/Granted day:2018-10-11
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