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:
Mar. 08, 2016
Filed:
Dec. 04, 2014
Applicant:
Shell Oil Company, Houston, TX (US);
Inventors:
Anke Derking, Amsterdam, NL;
Jozef Jacobus Kaandorp, Lumut, BN;
Arian Van Mourik, Amsterdam, NL;
Manfred Heinz Voetter, Amsterdam, NL;
Ying Zhao, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/14 (2006.01); B01D 3/00 (2006.01); B01D 3/34 (2006.01); C07D 301/19 (2006.01); B01D 3/32 (2006.01); B01D 3/40 (2006.01); C07D 301/32 (2006.01);
U.S. Cl.
CPC ...
C07D 301/19 (2013.01); B01D 3/007 (2013.01); B01D 3/322 (2013.01); B01D 3/40 (2013.01); C07D 301/32 (2013.01);
Abstract
A method of separating impurities from impure PO, the method comprising distilling impure PO in a distillation zone to provide distillate PO of enhanced purity, wherein heat is provided to the distillation zone by a bottoms reboiler and by an intermediate reboiler, the intermediate reboiler providing heat at a lower temperature than the bottoms reboiler. A suitable distillation system is also disclosed.