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:
Dec. 31, 2008
Applicants:
Duffer Crawford, Houston, TX (US);
David Coyle, Houston, TX (US);
Bharthwaj Anantharaman, Houston, TX (US);
Inventors:
Duffer Crawford, Houston, TX (US);
David Coyle, Houston, TX (US);
Bharthwaj Anantharaman, Houston, TX (US);
Assignee:
Kellogg Brown & Root LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods of reducing the concentration of low boiling point components in liquefied natural gas are disclosed. The methods involve dynamic decompression of the liquefied natural gas and one or more pre-fractionation vessels. Particular embodiments are suited for recovering helium and/or nitrogen enriched streams from a liquefied natural gas stream.