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1. WO2021067559 - LEAN GAS LNG HEAVIES REMOVAL PROCESS USING NGL

Publication Number WO/2021/067559
Publication Date 08.04.2021
International Application No. PCT/US2020/053738
International Filing Date 01.10.2020
IPC
B01D 3/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation
B01D 3/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation
26Fractionating columns in which vapour and liquid flow pass each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction
B01D 3/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
34with one or more auxiliary substances
CPC
F25J 1/0022
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
0002characterised by the fluid to be liquefied
0022Hydrocarbons, e.g. natural gas
F25J 1/02
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
F25J 2200/04
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
2200Processes or apparatus using separation by rectification
04in a dual pressure main column system
F25J 2200/72
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
72Refluxing the column with at least a part of the totally condensed overhead gas
F25J 2220/04
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
2220Processes or apparatus involving steps for the removal of impurities
04Separating impurities in general from the product stream
F25J 3/0233
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
0233separation of CnHm with 1 carbon atom or more
Applicants
  • CONOCOPHILLIPS COMPANY [US]/[US]
Inventors
  • CALDERON, Michael J.
  • CHAN, Jinghua
  • EMBRY, Dale L.
  • JAMES, Will T.
  • MA, Qi
Agents
  • ELLIOTT, Taryn A.
  • REHM, Adam C.
  • WOOLLEY, Patrick
  • HAYES, Aleece M.
Priority Data
62/908,95301.10.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LEAN GAS LNG HEAVIES REMOVAL PROCESS USING NGL
(FR) PROCÉDÉ D'ÉLIMINATION DE MINÉRAUX LOURDS DE GNL À GAZ PAUVRE À L'AIDE DE LGN
Abstract
(EN)
Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.
(FR)
L'invention concerne des systèmes et des procédés pour éliminer des minéraux lourds pendant la liquéfaction d'un gaz naturel. Les procédés comprennent la dissolution des minéraux lourds dans le gaz naturel par ajout d'un liquide de gaz naturel (LGN) externe, suivi d'une élimination étagée du liquide de gaz naturel (LGN) et des minéraux lourds dissous.
Also published as
Latest bibliographic data on file with the International Bureau