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:
May. 21, 2013
Filed:
Dec. 18, 2008
Henri A. Lammens, Antwerp, BE;
Tom Van Nuland, Sterrebeek, BE;
Ivo T. Goossens, Kapelle-Op-Den-Bos, BE;
Roger L. Claessens, Berlaar, BE;
Geert Vaes, Hollestraat, BE;
Paul Jan Clymans, Kapelle-Op-Den-Bos, BE;
Henri A. Lammens, Antwerp, BE;
Tom Van Nuland, Sterrebeek, BE;
Ivo T. Goossens, Kapelle-Op-Den-Bos, BE;
Roger L. Claessens, Berlaar, BE;
Geert Vaes, Hollestraat, BE;
Paul Jan Clymans, Kapelle-Op-Den-Bos, BE;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
The invention relates to high pressure tubular reactor olefin polymerization plants having improved specific energy consumption. The plants may be newly constructed or made by de-bottlenecking an existing plant. The tube of the tubular reactor may have improved arrangements for cooling to increase conversion and optimized polymer-recycle gas separation arrangements using a jet pump for recycling unreacted monomer while permitting haze to be maintained. The improved cooling arrangements include a reduced pressure cooling zone forming the tail end of the tube and/or a shortened heating zone for the front feed and allowing more monomer to be fed as a side feed.