[12] Patent
[11] Patent No.:GC0004491  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2016                32/2016  
Number of the Decision to Grant the Patent:2016/88876
Date of the Decision to Grant the Patent:04/Dec/2016

[21] Application No.:GC 2011-17914

[22] Filing Date:8/3/2011

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
9/3/2010
PCT/US2010/26661

[72] Inventors:1- James R. Lattner،2- Michael W. Weber،3- Jimmy L. Tardy،4- Howard G. Large،5- Pete N. Loezos،6- Randy L. Foster،7- Jason D. Davis

[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.: B01J 31/12, 8/04; C07B 61/00; C07C 11/107, 2/30 (2006.01)

[56] Cited Documents:

-US 2007-0185364 A1 (JOHN BUCHANAN et al .)09 August 2007
-WO 2005-084772 A1 ( CHEVRON PHILLIPS CHENICAL COMPANY LP )15 September 2005
-US 2007-0185358 Al (JOHN BUCHANAN et al .)09 August 2007
-WO 2007-092217 A2 (EXXONNOBIL RESEARCH AND ENGINEERING COMPANY) 16 August 2007
 
Examiner: Eng. Abdallah I. AlKhatib

[54] SYSTEM AND METHOD FOR SELECTIVE TRIMERIZATION
[57] Abstract: Disclosed herein is a method for separating from the reactor effluent of an olefin oligomerization procedure those catalyst materials and polymeric by-products which can cause difficulties in the downstream processing of such effluent. Polymer by-products and catalyst in the effluent are separated from reaction products by flash vaporization utilizing an in-situ hot solvent which is contacted with the effluent and serves as the heating medium to promote this flash vaporization step. Subsequent processing of a liquid portion of the effluent which is left after flash vaporization involves recovery of catalyst and polymeric by-products therefrom in a steam stripping vessel. Also disclosed is a multiple reactor system which can be used for continuous trimerization of ethylene to 1-hexene while at the same time washing polymeric by-products from one of the reactors in the series using a wash oil solvent.
No. of claims: 38     No. of figures: 14


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.