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:
Jul. 16, 2019

Filed:

Oct. 28, 2016
Applicant:

Black & Veatch Holding Company, Overland Park, KS (US);

Inventor:

Kevin L. Currence, Olathe, KS (US);

Assignee:

Black & Veatch Holding Company, Overland Park, KS (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01); F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
F25J 1/0022 (2013.01); F25J 3/0238 (2013.01); F25J 2205/02 (2013.01); F25J 2205/50 (2013.01); F25J 2210/06 (2013.01); F25J 2210/60 (2013.01); F25J 2215/04 (2013.01); F25J 2215/64 (2013.01); F25J 2215/66 (2013.01); F25J 2220/64 (2013.01); F25J 2235/60 (2013.01); F25J 2240/40 (2013.01); F25J 2270/02 (2013.01); F25J 2270/08 (2013.01); F25J 2270/90 (2013.01);
Abstract

Enhanced low temperature separation (LTS) processes are provided for separating light hydrocarbon components from heavy hydrocarbon components. The enhanced LTS process utilizes an absorber and a de-ethanizer tower to achieve sufficiently pure natural gas liquid (NGL) products and residue gas products. A portion of the de-ethanizer tower overhead is condensed and recycled as reflux for the absorber. The enhanced LTS process requires less refrigeration of the feed gas stream yet still achieves increased recovery of the valuable heavier hydrocarbons from hydrocarbon gas streams. The enhanced LTS process also reduces compression requirements compared to conventional LTS processes.


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