[12] Patent
[11] Patent No.:GC0004524  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/89616
Date of the Decision to Grant the Patent:15/Dec/2016

[21] Application No.:GC 2011-17923

[22] Filing Date:9/3/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
12/3/2010
/US2010/027194

[72] Inventor: Paul Jan Clymans

[73] Owner: ExxonMobil Chemical Patents Inc, 5200 Bayway Drive, Baytown, Texas 77520, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
Int. Cl.: B01J19/00, B01J4/00, C08F2/00 (2006.01)

[56] Cited Documents:

-WO 2007/134670 Al (EXXONMOBIL CHEM PATENTS INC [US]; CLAESSENS ROGER [BE); LAMMENS HENRI) 29 November 2007
-WO 2007/134671 Al (EXXONMOBIL CHEM PATENTS INC [US]; CORNELISSEN PHILIP HENRI [BE]; GOOSS) 29 November 2007
-WO 2007/051561 Al (EXXONMOBIL CHEM PATENTS INC [US]; VAN NULAND TOM [US]; REYNDERS LEO E) 10 May 2007
 
Examiner: Nouf AlNassban

[54] POLYETHYLENE MANUFACTURING SYSTEM AND METHOD
[57] Abstract: An ethylene polymerization system is provided with a quench system and that cools the product mixture entering the separation system with a reduced load on the first compressor of the system. The system includes first and second compressors, a high pressure reactor; a high pressure let down valve through which the product mixture from the high pressure reactor flows, and a separation system that separates gas from the product mixture. The quench system includes a pump having a suction inlet that receives all or substantially all of the low pressure flow of monomer from the first compressor. The system provides quenching of the product stream while allowing the first compressor to be operated at a discharge pressure lower than the suction pressure of the second compressor, thereby conserving energy.
No. of claims: 21     No. of figures: 3


 

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