US 12,392,549 B2
Gas stream component removal system and method
Douglas A. Ducote, Jr., The Woodlands, TX (US)
Assigned to Chart Energy & Chemicals, Inc., Ball Ground, GA (US)
Filed by Chart Energy & Chemicals, Inc., Ball Ground, GA (US)
Filed on Jun. 2, 2021, as Appl. No. 17/336,987.
Claims priority of provisional application 63/034,112, filed on Jun. 3, 2020.
Prior Publication US 2021/0381757 A1, Dec. 9, 2021
Int. Cl. F25J 1/00 (2006.01); F25J 1/02 (2006.01)
CPC F25J 1/0022 (2013.01) [F25J 1/0225 (2013.01); F25J 1/0238 (2013.01); F25J 1/0283 (2013.01); F25J 2210/60 (2013.01); F25J 2220/60 (2013.01); F25J 2240/02 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A system for removing selected components from a gas stream comprising:
a. a heat exchanger including a first cooling passage configured to receive a feed gas stream and to provide a cooled feed gas stream;
b. an expander configured to receive at least a portion of the cooled feed gas stream;
c. a separation device having a separation device vapor outlet, said separation device configured to receive an expanded fluid stream from the expander and to separate the expanded fluid stream into a liquid stream containing selected components and a purified vapor stream having a purified vapor temperature; and
d. a compressor configured to receive the purified vapor stream directly from the separation device vapor outlet at approximately the purified vapor temperature and to produce a compressed vapor stream that is returned to the heat exchanger, wherein the compressed vapor stream is compressed to a pressure corresponding to a temperature that is approximately equal to a temperature of the cooled gas stream.