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:
Mar. 08, 2022
Filed:
Sep. 05, 2018
Applicant:
Linde Engineering North America, Inc., Blue Bell, PA (US);
Inventors:
Assignee:
Linde Engineering North America, Inc., Blue Bell, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0295 (2013.01); F25J 3/0209 (2013.01); F25J 3/0233 (2013.01); F25J 3/0238 (2013.01); F25J 3/0242 (2013.01); F25J 2200/02 (2013.01); F25J 2200/30 (2013.01); F25J 2200/72 (2013.01); F25J 2200/76 (2013.01); F25J 2205/04 (2013.01); F25J 2210/60 (2013.01); F25J 2215/04 (2013.01); F25J 2215/60 (2013.01); F25J 2215/62 (2013.01); F25J 2215/64 (2013.01); F25J 2230/30 (2013.01); F25J 2230/60 (2013.01); F25J 2240/02 (2013.01); F25J 2240/40 (2013.01); F25J 2270/04 (2013.01); F25J 2270/88 (2013.01); F25J 2290/40 (2013.01);
Abstract
A process and plant for natural gas liquids (NGL) recovery includes a main heat exchanger, a cold gas/liquid separator, a separation or distillation column, and an overhead gas heat exchanger. A pressurized residue gas generated from an overhead gas stream removed the top of the separation or distillation column is expanded and used as a cooling medium in the overhead gas heat exchanger and the main heat exchanger. The expanded residue gas, used as a cooling medium, is then compressed up to a pressure to be combined with the overhead stream from the separation or distillation column.