WO2012097455A1 - Procédé de récupération de liquides de gaz naturel à partir de gaz naturel dans des installations de récupération de lgn - Google Patents

Procédé de récupération de liquides de gaz naturel à partir de gaz naturel dans des installations de récupération de lgn Download PDF

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Publication number
WO2012097455A1
WO2012097455A1 PCT/CA2012/050030 CA2012050030W WO2012097455A1 WO 2012097455 A1 WO2012097455 A1 WO 2012097455A1 CA 2012050030 W CA2012050030 W CA 2012050030W WO 2012097455 A1 WO2012097455 A1 WO 2012097455A1
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WO
WIPO (PCT)
Prior art keywords
lng
natural gas
stream
recovery
distillation column
Prior art date
Application number
PCT/CA2012/050030
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English (en)
Inventor
Jose Lourenco
Mackenzie Millar
Original Assignee
Jose Lourenco
Mackenzie Millar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jose Lourenco, Mackenzie Millar filed Critical Jose Lourenco
Priority to US13/980,548 priority Critical patent/US20130333416A1/en
Priority to AU2012208931A priority patent/AU2012208931B2/en
Publication of WO2012097455A1 publication Critical patent/WO2012097455A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4211—Regulation; Control of columns
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G5/00—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas
    • C10G5/06—Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0209—Natural gas or substitute natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0209—Natural gas or substitute natural gas
    • F25J3/0214—Liquefied natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0233—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/0238—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of CnHm with 2 carbon atoms or more
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1025—Natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/50—Processes or apparatus using other separation and/or other processing means using absorption, i.e. with selective solvents or lean oil, heavier CnHm and including generally a regeneration step for the solvent or lean oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/62—Liquefied natural gas [LNG]; Natural gas liquids [NGL]; Liquefied petroleum gas [LPG]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/904—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by liquid or gaseous cryogen in an open loop

Definitions

  • the present invention relates to methods for recovery of natural gas liquids (NGLs) from methane rich gases using liquid natural gas (LNG). More particularly, the present invention provides methods to efficiently and economically achieve higher recoveries of natural gas liquids at NGL recovery plants.
  • NGLs natural gas liquids
  • LNG liquid natural gas
  • Natural gas from producing wells contain natural gas liquids (NGLs) that are commonly recovered. While some of the needed processing can be accomplished at or near the wellhead (field processing), the complete processing of natural gas takes place at gas processing plants, usually located in a natural gas producing region. In addition to processing done at the wellhead and at centralized processing plants, some final processing is also sometimes accomplished at 'straddle plants'. These plants are located on major pipeline systems. Although the natural gas that arrives at these straddle plants is already of pipeline quality, there still exists quantities of NGLs, which are recovered at these straddle plants.
  • NGLs natural gas liquids
  • the straddle plants essentially recover all the propane and a large fraction of the ethane available from the gas before distribution to consumers.
  • the cryogenic processes are generally more economical to operate and more environmentally friendly, current technology generally favors the use of cryogenic processes over refrigeration and oil absorption processes.
  • the first generation cryogenic plants were able to extract up to 70% of the ethane from the gas, modifications and improvements to these cryogenic processes overtime have allowed for much higher ethane recoveries >90%. This increase in recovery comes with consumption of relatively large quantities of energy due to their compression requirements.
  • Prior art has taught that use of lean reflux streams reduce energy consumption and achieves high ethane recoveries.
  • methane gas has been proven to be a superior stripping gas to control carbon dioxide concentrations in NGL product.
  • the present invention provides a method for recovery of natural gas liquids from natural gas streams in a NGL recovery plant.
  • the method involves the use of LNG as a reflux stream, a feed mixer and a stripping gas in the operation of a LNG recovery plant.
  • LNG as stored cold energy to control a NGL distillation column temperature profile and operation, increases the efficiency and recovery of NGLs in natural gas streams.
  • LNG primarily methane, is an ideal stripping gas to control carbon dioxide concentration in the NGL product stream.
  • the interacting step can be either direct or indirect.
  • Direct interaction is achieved by injecting LNG as a liquid reflux to the distillation column to control overhead temperature, by direct mix with expanded gas stream to control distillation column pressure and as a stripping gas for carbon dioxide control in NGL product stream.
  • Indirect interaction is achieved by, first cooling the distillation column overhead stream in a heat exchanger and then used as a reflux in the distillation column. The condensate generated from overhead stream is used as a second reflux stream for a dual reflux operation, increasing NGLs recovery.
  • FIG. 1 is a schematic diagram of a facility equipped with LNG storage and supply for direct cooling in accordance with the teachings of the present invention.
  • FIG. 2 is a schematic diagram of a facility equipped with LNG storage and supply for indirect cooling in a heat exchanger to generate a second reflux stream.
  • a pressurized natural gas stream 1 is routed to heat exchanger 2 where the temperature of the feed gas stream is reduced by indirect heat exchange with counter-current cool streams 24, 19, 6 and 21.
  • the cooled stream 1 enters feed separator 3 where it is separated into vapour and liquid phases.
  • the liquid phase stream 4 is expanded through valve 5 and pre-heated in heat exchanger 2 prior to introduction into distillation column 20 through line 6.
  • the gaseous stream 7 is routed to gas expander 8.
  • the expanded and cooler vapor stream 9 is mixed with LNG for temperature control and routed through stream 17 into the upper section of distillation column 20.
  • a LNG storage drum 10 supplies LNG through line 11 to LNG pump 12.
  • the pressurized LNG stream 13 is routed through temperature control valve 14 providing the reflux stream to distillation column 20.
  • a slipstream from the pressurized LNG stream 13 provides temperature control to stream 9 through temperature control valve 16, temperature controlled stream 17 enters the upper section of distillation column 20.
  • the controlled temperature of stream 17 by addition of LNG enables operation of the distillation column at higher pressures to compensate for the loss of coolth energy generated by the expander at higher backpressures.
  • a second slipstream from pressurized LNG stream 13 provides methane for carbon dioxide stripping through flow control valve 18, the LNG is pre-heated in heat exchanger 2 before introduction into the lower section of the distillation column 20 as a stripping gas.
  • the distilled stream 21, primarily methane, is pre-heated in heat exchanger 2 and routed to compressor 22 for distribution and or recompression through line 23.
  • the liquid fraction stream 24 is reboiled in heat exchanger 2 and routed back to the bottom section of distillation column 20, to control NGL product stream 25.
  • the coolth energy of LNG is used to first condense the overhead stream of the distillation column generating a second reflux stream before its use as the primary reflux stream, allowing for an increase in efficiency in plant operations.
  • a pressurized natural gas stream 1 is routed to heat exchanger 2 where the temperature of the feed gas stream is reduced by indirect heat exchange with counter-current cool streams 28, 18, 6 and 25.
  • the cooled stream 1 enters feed separator 3 where it is separated into vapour and liquid phases.
  • the liquid phase stream 4 is expanded through valve 5 and pre-heated in heat exchanger 2 prior to introduction into distillation column 19 through line 6.
  • the gaseous stream 7 is routed to gas expander 8, the expanded and cooler vapor stream 9 is routed into the upper section of distillation column 20.
  • a LNG storage drum 10 supplies LNG through line 11 to LNG pump 12.
  • the pressurized LNG stream 13 enters heat exchanger 14 and is routed through temperature control valve 15 as reflux stream 16 to distillation column 19.
  • a slipstream from pressurized LNG stream 13 provides methane for carbon dioxide stripping through flow control valve 17, the LNG is pre-heated in heat exchanger 2 before introduction into the lower section of the distillation column 19 as a stripping gas.
  • the distilled stream 20, primarily methane, is cooled in heat exchanger 14 and discharged into overhead separator 21.
  • the vapour stream 25 is pre-heated in heat exchanger 2 and routed to compressor 26 for distribution and or recompression through line 27.
  • the liquid fraction stream 28 is reboiled in heat exchanger 2 and routed back to the bottom section of distillation column 19, to control NGL product stream 29.
  • LNG provides stored cold energy that improves the operation and efficiency of NGL distillation columns.
  • the above described method uses this stored cold energy to condense natural gas liquids from natural gas streams by direct mixing. This direct mixing provides better heat transfer and reduces the energy requirements to condense NGLs. It also reduces the energy required for recompression of gas for distribution.
  • the word "comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded.
  • a reference to an element by the indefinite article "a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention porte sur un procédé pour récupérer des liquides de gaz naturel à partir de courants de gaz naturel dans des installations de récupération de LGN. Les procédés de la présente invention utilisent du gaz naturel liquide (GNL) comme source externe d'énergie froide emmagasinée pour réduire l'énergie et améliorer le fonctionnement de colonnes de distillation de LGN. Plus particulièrement, la présente invention porte sur des procédés pour assurer efficacement et économiquement des taux de récupération plus élevés de liquides de gaz naturel dans des installations de récupération de LGN.
PCT/CA2012/050030 2011-01-18 2012-01-18 Procédé de récupération de liquides de gaz naturel à partir de gaz naturel dans des installations de récupération de lgn WO2012097455A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/980,548 US20130333416A1 (en) 2011-01-18 2012-01-18 Method of recovery of natural gas liquids from natural gas at ngls recovery plants
AU2012208931A AU2012208931B2 (en) 2011-01-18 2012-01-18 Method of recovery of natural gas liquids from natural gas at NGLs recovery plants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2728716A CA2728716C (fr) 2011-01-18 2011-01-18 Methode pour recuperer des liquides de gaz naturel dans du gaz naturel dans des usines de recuperation ngls
CA2728716 2011-01-18

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Publication Number Publication Date
WO2012097455A1 true WO2012097455A1 (fr) 2012-07-26

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Country Link
US (1) US20130333416A1 (fr)
AU (1) AU2012208931B2 (fr)
CA (1) CA2728716C (fr)
WO (1) WO2012097455A1 (fr)

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CN104251598A (zh) * 2014-09-16 2014-12-31 华南理工大学 蓄冷式维持lng冷能利用装置连续运行的系统及方法
WO2020243062A1 (fr) * 2019-05-29 2020-12-03 Uop Llc Utilisation de détendeurs de fluide dense dans la récupération de liquides de gaz naturel cryogénique

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CA2772479C (fr) 2012-03-21 2020-01-07 Mackenzie Millar Methode par thermocommande pour liquefier le gaz et usine de production utilisant cette methode.
CA2790961C (fr) 2012-05-11 2019-09-03 Jose Lourenco Une methode de recuperation de gpl et de condensats des flux de gaz de carburant de raffineries.
CA2798057C (fr) 2012-12-04 2019-11-26 Mackenzie Millar Une methode produire du gnl dans les stations de detente de pression de gaz dans les systemes de gazoduc de gaz naturel
CA2813260C (fr) 2013-04-15 2021-07-06 Mackenzie Millar Procede de production de gaz naturel liquefie
CN103438661A (zh) * 2013-08-30 2013-12-11 北京麦科直通石化工程设计有限公司 一种低能耗的新型天然气液化工艺
US10017701B2 (en) * 2014-06-02 2018-07-10 Aspen Engineering Services, Llc Flare elimination process and methods of use
US10288347B2 (en) 2014-08-15 2019-05-14 1304338 Alberta Ltd. Method of removing carbon dioxide during liquid natural gas production from natural gas at gas pressure letdown stations
US11173445B2 (en) 2015-09-16 2021-11-16 1304338 Alberta Ltd. Method of preparing natural gas at a gas pressure reduction stations to produce liquid natural gas (LNG)
US20180274853A1 (en) * 2017-03-23 2018-09-27 Greg Luetkemeyer Gas plant
WO2019095031A1 (fr) 2017-11-14 2019-05-23 1304338 Alberta Ltd. Procédé de récupération et de traitement de méthane et de condensats à partir de systèmes de gaz torché
US11585598B2 (en) * 2020-12-18 2023-02-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Operation of natural gas liquids stabilizer column

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