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:
Apr. 18, 2017
Filed:
Jul. 10, 2008
Applicant:
Francois Chantant, The Hague, NL;
Inventor:
Francois Chantant, The Hague, NL;
Assignee:
SHELL OIL COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01); F25J 1/02 (2006.01); F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
F25J 1/0237 (2013.01); F25J 1/0022 (2013.01); F25J 1/0035 (2013.01); F25J 1/0042 (2013.01); F25J 1/0221 (2013.01); F25J 1/0223 (2013.01); F25J 3/0209 (2013.01); F25J 3/0233 (2013.01); F25J 3/0238 (2013.01); F25J 2200/02 (2013.01); F25J 2200/74 (2013.01); F25J 2205/04 (2013.01); F25J 2210/06 (2013.01); F25J 2210/42 (2013.01); F25J 2230/20 (2013.01); F25J 2230/30 (2013.01); F25J 2240/12 (2013.01); F25J 2270/14 (2013.01); F25J 2270/904 (2013.01);
Abstract
A method and apparatus for liquefying a gaseous hydrocarbon stream such as natural gas. The method comprises at least the steps of providing a feed stream () and dividing the feed stream () to provide at least a first stream () and a second stream (). The first stream () is liquefied using heat exchange against a liquid nitrogen stream () to provide a first liquefied hydrocarbon stream () and an at least partly evaporated nitrogen stream (). The second stream () is cooled and liquefied by heat exchanging against the at least partly evaporated nitrogen stream () to provide a second cooled hydrocarbon stream ().