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:
Apr. 24, 2018

Filed:

Jun. 12, 2013
Applicant:

Shell Oil Company, Houston, TX (US);

Inventors:

Roderick Kempes, Calgary, CA;

Robert Lansink, Rotterdam, NL;

Gregory Martin Parry Perkins, Brisbane, AU;

Leendert Johannes Arie Zoetemeijer, Rijswijk, NL;

Assignee:

SHELL OIL COMPANY, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D 15/02 (2006.01); F17C 9/02 (2006.01); F28D 1/053 (2006.01); F28D 7/06 (2006.01); F28F 1/24 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
F17C 9/02 (2013.01); F28D 1/05316 (2013.01); F28D 7/06 (2013.01); F28D 15/0266 (2013.01); F28D 15/0275 (2013.01); F17C 2221/033 (2013.01); F17C 2223/013 (2013.01); F17C 2227/0323 (2013.01); F28D 2021/0066 (2013.01); F28F 1/24 (2013.01);
Abstract

In a heater for a liquefied stream, a first heat transfer zone has a box stretching longitudinally along an axis. A first heat transfer surface is arranged inside the box, across which a first indirect heat exchanging contact is established between a liquefied stream that is to be heated and a heat transfer fluid. A second heat transfer zone is located gravitationally lower and includes a second heat transfer surface across which the heat transfer fluid is brought in a second indirect heat exchanging contact with the ambient. A downcomer fluidly connects the first heat transfer zone with the second heat transfer zone and has a first transverse portion and a first downward portion that are fluidly connected to each other via a connecting elbow portion. The connecting elbow portion, when viewed in a vertical projection on a horizontal plane, is located external to the box compared to the axis.


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