Solvent injection and recovery in a LNG plant

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United States of America Patent

PATENT NO 12025371
APP PUB NO 20230251032A1
SERIAL NO

18136540

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Abstract

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Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a solvent is injected into a feed of natural gas at a solvent injection point. A mixed feed is produced from a dispersal of the solvent into the feed of natural gas. The mixed feed contains heavy components. A chilled feed is produced by chilling the mixed feed. The chilled feed includes a vapor and a condensed liquid. The condensed liquid contains a fouling portion of the heavy components condensed by the solvent during chilling. The liquid containing the fouling portion of the heavy components is separated from the vapor. The vapor is directed into a feed chiller heat exchanger following separation of the liquid containing the fouling portion of the heavy components from the vapor, such that the vapor being directed into feed chiller heat exchanger is free of freezing components.

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Patent Owner(s)

Patent OwnerAddress
CONOCOPHILLIPS COMPANY925 N ELDRIDGE PARKWAY LEGAL TECHNOLOGY & IP DEPT ATTN DOCKETING HOUSTON TX 77079

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Calderon, Michael J Houston, US 15 11
Davies, Paul R Houston, US 52 154
Embry, Dale L Houston, US 17 43
Praderio, Attilio J Houston, US 13 76

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