The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2014
Filed:
Mar. 09, 2010
James R. Lattner, La Porte, TX (US);
Michael W. Weber, Houston, TX (US);
Jimmy L. Tardy, Crosby, TX (US);
Howard G. Large, La Porte, TX (US);
Peter N. Loezos, Houston, TX (US);
Randy L. Foster, Crosby, TX (US);
Jason D. Davis, Humble, TX (US);
James R. Lattner, La Porte, TX (US);
Michael W. Weber, Houston, TX (US);
Jimmy L. Tardy, Crosby, TX (US);
Howard G. Large, La Porte, TX (US);
Peter N. Loezos, Houston, TX (US);
Randy L. Foster, Crosby, TX (US);
Jason D. Davis, Humble, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
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.