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:
Jun. 03, 2025

Filed:

Aug. 04, 2021
Applicant:

Fluor Technologies Corporation, Irving, TX (US);

Inventor:

John Mak, Santa Ana, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0238 (2013.01); F25J 3/0209 (2013.01); F25J 3/0233 (2013.01); F25J 3/0242 (2013.01); F25J 2200/04 (2013.01); F25J 2200/70 (2013.01); F25J 2200/78 (2013.01); F25J 2205/04 (2013.01); F25J 2205/50 (2013.01); F25J 2210/06 (2013.01); F25J 2215/04 (2013.01); F25J 2215/62 (2013.01); F25J 2215/64 (2013.01); F25J 2240/02 (2013.01); F25J 2240/40 (2013.01); F25J 2270/02 (2013.01); F25J 2270/08 (2013.01); F25J 2270/12 (2013.01); F25J 2270/60 (2013.01); F25J 2280/02 (2013.01);
Abstract

Embodiments relate generally to systems and methods for operating a natural gas liquids plant in ethane rejection and in ethane recovery. A natural gas liquid plant may comprise an absorber configured to produce an ethane rich bottom stream and an ethane depleted vapor stream; a stripper fluidly coupled to the absorber configured to, during ethane rejection, fractionate the ethane rich bottom stream from the absorber into an ethane overhead product and a propane plus hydrocarbons product, and configured to, during ethane recovery, fractionate the ethane rich bottom stream into an ethane plus NGL stream and an overhead vapor stream; and an exchanger configured to, during ethane recovery, counter-currently contact the ethane rich bottom stream from the absorber with the ethane depleted vapor stream from the absorber, thereby heating the vapor stream and chilling the ethane rich bottom stream before the ethane rich bottom stream is fed to the stripper.


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