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:
Sep. 03, 2013
Filed:
Apr. 18, 2012
Michael W. Weber, Houston, TX (US);
Randy L. Foster, Crosby, TX (US);
James R. Lattner, Laporte, TX (US);
Jimmy L. Tardy, Crosby, TX (US);
Michael J. Veraa, Houston, TX (US);
Michael W. Weber, Houston, TX (US);
Randy L. Foster, Crosby, TX (US);
James R. Lattner, Laporte, TX (US);
Jimmy L. Tardy, Crosby, TX (US);
Michael J. Veraa, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
This disclosure relates generally to low temperature steam stripping methods for byproduct polymer and solvent separation from an ethylene oligomerization process. The methods disclosed have been found to separate byproduct polymer from solvent without fouling process equipment or causing other process problems. The byproduct polymer ends up as flowable solid particles in a water stream that may be easily discharged from the process, while solvent is recovered for recycle to the process. In embodiments of the invention, over 90 wt % of the solvent used is recovered and the discharged byproduct polymer is less than 20 wt % solvent.