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.

Date of Patent:
Jan. 21, 2020

Filed:

Feb. 12, 2009
Applicants:

Marco Dick Jager, The Hague, NL;

Wouter Jan Meiring, Kuala Lumpur, MY;

Inventors:

Marco Dick Jager, The Hague, NL;

Wouter Jan Meiring, Kuala Lumpur, MY;

Assignee:

SHELL OIL COMPANY, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/02 (2006.01); F25J 3/02 (2006.01); F25J 1/00 (2006.01);
U.S. Cl.
CPC ...
F25J 1/004 (2013.01); F25J 1/0022 (2013.01); F25J 1/0208 (2013.01); F25J 1/0219 (2013.01); F25J 1/0231 (2013.01); F25J 3/0209 (2013.01); F25J 3/0233 (2013.01); F25J 3/0238 (2013.01); F25J 3/0257 (2013.01); F25J 3/0242 (2013.01); F25J 3/0247 (2013.01);
Abstract

A method and apparatus for cooling a hydrocarbon stream such as natural gas. An initial hydrocarbon stream is passed through a first separator to provide an initial overhead stream and a mixed hydrocarbon feed stream. The initial overhead stream is cooled to provide a cooled hydrocarbon stream such as LNG, and at least a C1 overhead stream and one or more C2, C3 and C4 overhead streams are separated from the mixed hydrocarbon feed stream. At least a fraction of at least one of the group comprising: the C2 overhead stream, the C3 overhead stream and the C4 overhead stream is cooled with the C1 overhead stream to provide a cooled stream, which is further cooled against at least a fraction of the cooled, preferably liquefied, hydrocarbon stream to provide an at least partly liquefied cooled stream.


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