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1. WO2020223333 - SOLVENT INJECTION AND RECOVERY IN A LNG PLANT

Publication Number WO/2020/223333
Publication Date 05.11.2020
International Application No. PCT/US2020/030448
International Filing Date 29.04.2020
IPC
F25J 1/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen
CPC
F25J 2200/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2200Processes or apparatus using separation by rectification
10in a quadruple, or more, column or pressure system
F25J 2210/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2210Processes characterised by the type or other details of the feed stream
04Mixing or blending of fluids with the feed stream
F25J 2220/64
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2220Processes or apparatus involving steps for the removal of impurities
60Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
64Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates in general
F25J 3/0209
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
0204characterised by the feed stream
0209Natural gas or substitute natural gas
F25J 3/0247
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
0228characterised by the separated product stream
0247separation of CnHm with 4 carbon atoms or more
F25J 3/0295
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
0295Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
Applicants
  • CONOCOPHILLIPS COMPANY [US]/[US]
Inventors
  • CALDERON, Michael J.
  • EMBRY, Dale L.
  • DAVIES, Paul R.
  • PRADERIO, Attilio J.
Agents
  • ELLIOTT, Taryn A.
  • REHM, Adam C.
  • RICE, Phllip
  • WOOLLEY, Patrick
Priority Data
62/840,18029.04.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SOLVENT INJECTION AND RECOVERY IN A LNG PLANT
(FR) INJECTION ET RÉCUPÉRATION DE SOLVANT DANS UNE INSTALLATION GNL
Abstract
(EN)
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.
(FR)
Les modes de réalisation décrits et revendiqués par la présente invention concernent des systèmes et des procédés de traitement de gaz naturel liquéfié (GNL). Dans un mode de réalisation, un solvant est injecté dans une charge en gaz naturel au niveau d'un point d'injection de solvant. Une charge mixte est produite à partir d'une dispersion du solvant dans la charge en gaz naturel. La charge mixte contient des composants lourds. Une charge refroidie est produite par refroidissement de la charge mixte. La charge refroidie comprend une vapeur et un liquide condensé. Le liquide condensé contient une partie d'encrassement des composants lourds condensés par le solvant pendant le refroidissement. Le liquide contenant la partie d'encrassement des composants lourds est séparé de la vapeur. La vapeur est dirigée dans un échangeur de chaleur de refroidisseur de charge après séparation du liquide contenant la partie d'encrassement des composants lourds de la vapeur, de telle sorte que la vapeur dirigée dans l'échangeur de chaleur de refroidisseur de charge soit exempte de composants de congélation.
Latest bibliographic data on file with the International Bureau