CN101128712A - 调节液化天然气的工序 - Google Patents

调节液化天然气的工序 Download PDF

Info

Publication number
CN101128712A
CN101128712A CNA2006800050610A CN200680005061A CN101128712A CN 101128712 A CN101128712 A CN 101128712A CN A2006800050610 A CNA2006800050610 A CN A2006800050610A CN 200680005061 A CN200680005061 A CN 200680005061A CN 101128712 A CN101128712 A CN 101128712A
Authority
CN
China
Prior art keywords
natural gas
stream
liquefied natural
heat exchanger
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA2006800050610A
Other languages
English (en)
Inventor
L·A·菲利普斯
L·斯科特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BP Exploration Operating Co Ltd
Original Assignee
BP Exploration Operating Co Ltd
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 BP Exploration Operating Co Ltd filed Critical BP Exploration Operating Co Ltd
Publication of CN101128712A publication Critical patent/CN101128712A/zh
Pending legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • F25J3/0242—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 3 carbon atoms or more
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0306—Heat exchange with the fluid by heating using the same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0376—Localisation of heat exchange in or on a vessel in wall contact
    • F17C2227/0379—Localisation of heat exchange in or on a vessel in wall contact inside the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/01—Purifying the fluid
    • F17C2265/015—Purifying the fluid by separating
    • F17C2265/017—Purifying the fluid by separating different phases of a same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/033—Treating the boil-off by recovery with cooling
    • F17C2265/034—Treating the boil-off by recovery with cooling with condensing the gas phase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/05—Regasification
    • 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
    • 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
    • F25J2205/90—Mixing of components
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/02—Mixing or blending of fluids to yield a certain product
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/60—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being (a mixture of) hydrocarbons
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/90—Processes or apparatus involving steps for recycling of process streams the recycled stream being boil-off gas from storage
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/12—Particular process parameters like pressure, temperature, ratios
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/62—Details of storing a fluid in a tank

Landscapes

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

Abstract

本发明涉及用于调节液化天然气的工序，包括以下步骤：在从15到35barg的压力范围供应(3)液化天然气的原料流到热交换器(4)以产生至少一部分汽化的天然气流(5)；将来自步骤(i)的至少一部分流体传送到没有回流运行的蒸馏器(11)以产生天然气液体流(12)和富含甲烷的流(13)；在没有附加压力的情况下，将来自步骤(ii)的富含甲烷的流体传送到热交换器(4)并且通过与液化天然气的原料流的至少一部分进行热交换而冷却，以产生液化天然气流(14)；将来自步骤(iii)的液化天然气流汽化以产生调节的天然气；回收天然气液态产物(12)。

Description

调节液化天然气的工序
本发明涉及用于调节液化天然气的工序。
液化天然气(LNG)在装入管道用于分配以前，需要被蒸发。在典型的汽化工序中，液化天然气被装入储罐。这不可避免地导致一些蒸汽的汽化(boil-off)；典型地这些废气被压缩然后传送到汽化冷凝器，在其中它被冷凝，例如通过从罐传送一些液化天然气进入汽化冷凝器之内，在其中汽化气体(boil-offgas)在增加的压力下，与液化天然气流结合以产生完全液体流，然后其可以与来自罐的流出流结合。然后液化天然气生成物从罐经过到达泵，所述泵在适当的压力下，通过一个或多个汽化液化天然气的换热器，将液化天然气排出到管道。
然而，在很多情况下，由于包含两个或更多碳原子的烃的过量存在，液化天然气不符合所需产品或管道规范，并且需要各种附加的工序步骤。
US6,564,579描述了用于除去天然气液态产物(NGLs)的工序，典型的是从液化天然气中除去包含两个或更多碳原子的烃，以便提供具有降低的热值的天然气产品，其符合管道或其它商业规范。这种工序属于可以称作为调节的一种类型，包括以下步骤：使液化天然气流的至少主要部分汽化以产生至少一部分的汽化的天然气流；使该至少一部分汽化的天然气流分馏以产生气流和天然气液体流；压缩气体流以增加气体流的压力从大约50psi到大约150psi(磅/平方英寸)，以产生压缩气体流，并通过与液化天然气流进行热交换使压缩气体流冷却以产生液体压缩气体流；泵送液体压缩气体流以在从大约800到大约1200psig(磅/平方英寸)的压力下产生高压的液体流；使高压液体流汽化以产生适合于供给到管道或用于商业用途的受调节天然气；并且重新获得天然气液态产物。50到150psi相当于大约3.5到大约10.3bar，而800到1200psig相当于大约55.2到大约82.8barg。
像提供符合管道规范的天然气产品一样，US6,564,579的工序也提供了分离的天然气液态产物，其可以比如果它们是天然气产品的组分具有更大的商业价值，并且相对简单和经济。然而，这个工序具有缺点。特别是，该工序需要使用位于分离(分馏)塔蒸气出口处的压缩机以能够完成蒸汽流的冷凝。
US6,604,380还描述了用于从液化天然气中回收天然气液态产物的工序。该工序是复杂的、多步骤工序，工序其包括分割原料流并在该工序的别处使用至少一部分作为回流。
US6,510,706描述了专门用于加压的液体天然气的工序。根据US6,510,706，“它已经建议了在高于-112℃(-170)的温度和在等于或低于它的始沸点温度足以液化的压力下运输天然气。这种加压液体天然气称为“PLNG”，以便与液化天然气相区别，其在接近大气压和大约-162℃(-260)的温度下运输。”液化天然气和PLNG的工序存在不同的技术挑战。
我们现在已经发现了有效、简单和灵活的工序，其可以用于调节液化天然气。
相应地本发明提供了用于调节液化天然气的工序，其包括以下步骤：
i)在从15到35barg的压力范围和-120℃或更低的温度供应液化天然气的原料流到热交换器以产生至少一部分汽化的天然气流；
ii)将来自步骤(i)的至少一部分流体传送到没有回流运行的蒸馏器以产生天然气液体流和富含甲烷的流体；
iii)在没有附加压力的情况下，将来自步骤(ii)的富含甲烷的流体传送到热交换器，并且通过与液化天然气的原料流的至少一部分热交换而被冷却，以产生液化天然气流；
iv)将来自步骤(iii)的液化天然气流汽化以产生调节的天然气；和
v)回收天然气液态产物。
根据本发明的工序产生调节的天然气，其适合于和天然气液体一起供给到管道，或用于其它商业用途。一般而言，天然气液态产物包括具有2个或更多碳原子的烃。如果需要，通过本发明的工序获得的最初的天然气液态产物产品可以被进一步地处理，以通过它们碳原子数量上的区别来分离烃。
本发明的工序的最初步骤要求在足够高压条件下提供液化天然气的原料流，以便工序在步骤(iii)的热交换之前从该工序的步骤(ii)中获得的富含甲烷的气流不需要应用压缩机。在大多数环境下，这将包括增压液化天然气以得到需要的从15到35barg范围内的压力，优选为15到30barg，用于原料流进入到热交换器。
液化天然气的原料流必须在-120℃或更低温度下供应，例如-130℃或更低。在这限制之内，优选地温度是-170℃或更高，特别-163℃或更高。优选地温度在从-170℃到-120℃范围之内，特别是从-163℃到-120℃，例如从-163℃到130℃。
该工序的液化天然气原料通常通过泵送由液化天然气储罐提供。优选地，工序超过90％或95％的液化天然气原料，最好是全部的液化天然气，在该工序的步骤(i)和(ii)被处理。如果需要，少量的原料可以作为滑流被分开并且用于执行该工序之内的某些功能。然而，根据本发明的工序的好处在于：在该工序所使用的塔中，原料不需要作为回流，如用于处理液化天然气的通常的工序那样，例如在US6,604,380中描述的工序。100％的液化天然气原料可以被处理，并且90％或更多的天然凝析油液体作为产品回收。
来自步骤(i)的至少一部分流体在步骤(ii)的蒸馏器中被分成天然气液体流和气体流，并且所产生的气体流被送到热交换器，在这里它被液化天然气原料流冷却(步骤(iii)。所使用的热交换器优选是板翅式换热器或其它类型的紧凑式换热器(在壳中的平板或印刷电路板换热器)；这是非常紧凑的，并且在冷却和加热流的″网″之间允许小的温度差，其又能得到高处理效率。
在本发明的工序中，高压原料流通过与该工序的步骤(ii)排出的流体进行热交换而被加热。在一些情况下，可能希望使用除排出流之外的加热流体来对原料流提供额外加热。
步骤(ii)的蒸馏器包含蒸馏塔板或组件，并且产生富含甲烷的流体。如果蒸馏器是脱甲烷塔，送到容器的大部分甲烷作为气体沿路线塔顶馏出，而液体流包含具有2个或更多碳原子的烃。如果容器是脱乙烷塔，富含甲烷的流将还包含送到容器的大部分乙烷，并且液体产物将主要包含具有3个或更多碳原子的烃。
在本发明的工序中使用的温度和压力下采用工序液化天然气作为原料提供了许多优点。特别是可以使用基本上没有戊烷和重烃的常规的液化天然气原料，从而生成不需要下游处理的高位值天然气凝析液体产品。混合的商业液化石油气产品也可以使用，或者可以例如被下游分馏以产生工业丙烷和商品丁烷。
在根据本发明工序的优选的实施方案中，再冷凝器结合到该工序的前端。
在该实施方案中，当液化天然气储罐提供原料到该工序时，冷凝来自液化天然气储罐的汽化气体在进入再冷凝器之前被压缩，典型地达到8到12barg的压力。离开液化天然气储罐的主液化天然气流的滑流也被传送到再冷凝器，在其中吸收冷凝的汽化气体。来自再冷凝器的液体输出流然后与来自液化天然气储罐的主排出流相结合，并且组合的流体通常在泵送以升高压力到需要的程度之后，形成该工序的原料。
因此，本发明工序的优选实施方案包括一种工序，在其中液化天然气的排出流是从储罐中被泵送出来；所述排出流被分成至少第一部分和第二部分；来自所述储罐的汽化气体被压缩并且随后供应给再冷凝器；排出流的第一部分还被送至再冷凝器，在其中它吸收冷凝的汽化气体；从再冷凝器输出的流体与从储罐的排出流的第二部分结合；并且产生的组合流用作步骤(i)的原料流。
在本发明工序的进一步的实施方案中，可以使用附加的分离器，其通常不包含除了较小零件之外的内部零件，例如供给器或除霜器底座。在这个实施方案中，该工序可以引入附加的分离步骤，在其中来自步骤(i)的流体被传递到分离器以生成富含甲烷的第一流体，和富含具有2个或更多碳原子的烃的第二流体，第二流体变成用于工序的步骤(ii)的输入流，即输入到蒸馏器，而第一流体被传递到热交换器，并且通过与液化天然气原料流的至少一部分进行热交换而冷却以产生液化天然气流。因此，在这个实施方案中，该工序特征在于用于液化天然气调节的工序，其包括以下步骤：
i)在从15到35barg的压力范围内和-120℃或更低温度下供应液化天然气的原料流到热交换器以产生至少一部分汽化的天然气流；
ia)分离至少一部分汽化的天然气流以产生富含甲烷的第一流体，和富含具有2个或更多碳原子的烃的第二流体；
ii)从步骤(ia)将第二流体传送到没有回流运行的蒸馏器以产生天然气液体流和富含甲烷的流体；
iii)将来自步骤(ii)的富含甲烷的流体，任选地与来自步骤(ia)的第一流体合并之后，在没有附加压力的情况下，传送到热交换器并且通过与液化天然气的至少一部分原料流进行热交换而冷却，以产生液化天然气流；
iiia)将来自步骤(ia)的第一流体，任选地与来自步骤(ii)的富含甲烷的流体合并之后，在没有附加压力的情况下，传送到热交换器并且通过与液化天然气的至少一部分原料流热交换而冷却，以产生液化天然气流；
iiib)如果从步骤(iii)和(iiia)的输出包括两个分离的流体，任选地合并它们；
iv)使来自步骤(iii)、(iiia)和/或(iiib)的液化天然气流汽化，以产生调节的天然气；和
v)回收天然气液态产物。
在这个实施方案中，有可能在冷却之前合并来自分离器和蒸馏器的两个气体流，从而使用单通道热交换器。然而，为了优化处理效率，热交换最好是在两个分离的气体流中进行，使用两个不同的热交换器或使用多流体热交换器。优选地，使用的热交换器是板翅式换热器或其它类型的紧凑式换热器，例如在其中存在单独的合并气体流供应的板壳式，或印制电路板热交换器。
自然地，本发明工序的这个实施方案还可以结合如上所述的前端再冷凝器。
在步骤(iii)的热交换之后，可以提供可选择的泵送以进一步增加压力，随后汽化以产生需要的调节的天然气。当使用附加的分离器时，(来自步骤(iii)和(iiia)的)两个流体如果需要的话可以在这个泵送步骤之前合并。
本发明的工序相对于US6,564,579描述的工序有许多好处。因此，本发明的工序完全改善了US6,564,579的可操作性，因为方案增加了当蒸馏锅最大程度回收液化天然气时潜在的倒炉的可能性。特别是，本发明的工序通过在足够高的初始压力下供应液化天然气的原料流运行，以便不需要在该工序的任何阶段气体压缩。与需要气体压缩的US6,564,579的工序相比，由于没有大部分的设备运行，这导致低电耗、降低基建费用、降低生产费用和高“有效性”。此外，US6,564,579的工序固有地比本发明效率更低，因为在现有技术的工序中，使用的压缩机产生许多热量，其不得不被除去。有效的，本发明的工序通过液体泵送代替气体压缩，这样降低能量、费用和复杂性。
当使用附加的分离器时，因为工序在基本上均匀压力下运行，即在最初的泵送步骤之后在任一点不需要显著的压力增加，并且因为在热交换之前不同的压力下，不需要如US6,564,579的工序那样合并两个分离气体流，来自步骤(ia)的液体流可以向下进入蒸馏器之内：不需要泵送将来自步骤(ia)的天然气液态产物流传送到蒸馏器，此外实际不需要压缩机来压缩在步骤(ia)中从分离器排出的气体流。
通常通过最初的泵送步骤产生的原料流的压力，在从15到35barg范围之内，优选为从15到30barg，特别是从20到30barg，并且这个压力在整个工序中基本上维持不变(穿过各种的设备部分产生较小的压力损失)。优选使用的压力通常比US6,510,706的工序设计的更低，并且因为本发明的工序不需要压缩机运行(除非任选地，在工序的步骤(i)之前压缩机被结合以控制来自液化天然气储罐的汽化气体)。该工序完全有效地简化了US6,564,579。该工序的热回收效率高，特别是如果使用紧凑式换热器，并且当使用附加的分离器并且来自步骤(ia)和(ii)的气体流在热交换之前保持分离而非合并时，热回收效率比US6,564,579完全提高了。
本发明的工序可以与现有液化天然气处理设备结合。该工序还可以成为如US6,564,579描述的整体能源回收系统的一部分。
本发明在附图中进一步地阐明，其中：
图1是根据本发明的工序的流程图；
图2描述了在图1的工序前端结合再冷凝器的工序的实施方案；和
图3描述了图1的工序结合附加的分离器的工序的实施方案。
在图1中，低温贮罐1装有形成该工序原料的液化天然气。罐内泵2在-120℃或更低温度下从罐1通过泵3泵送液化天然气，泵3将压力提高到15到35barg，优选地20到30barg。来自泵3的液化天然气被传递到热交换器4，所述热交换器4优选是紧凑型的，例如板翅型(plate-fin type)。管路5将一部分汽化的液化天然气运送到蒸馏器11，所述蒸馏器11将输入流分离成包括天然气液态产物的液体流和气体流，所述液体流通过管路12被移到冷却器(没有示出)，所述气体流通过管路13被移去并返回到热交换器4。
蒸馏器11设有重沸器20，其包括热交换器21和形成闭环的回到蒸馏器11的管路22。
离开热交换器4的流体被管路14运送到泵17，并且随后在排出之前在热交换器18中蒸发。
图2描述了在图1的工序前端结合再冷凝器的工序。汽化气体通过流体41离开罐1，并且在压缩机42中被压缩到典型地是从8到12barg的压力。来自压缩机42的输出流被传送到再冷凝器43。从罐1通过泵2被泵送出来的液化天然气流的滑流44也传送到再冷凝器43，在其中它吸收来自流41的压缩的汽化气体。离开再冷凝器43的液体流45在混合点46与来自泵2的液化天然气流合并，并且所产生的流体形成进入泵3的原料流。
在图3中，低温贮罐1装有形成该工序的原料的液化天然气。罐内泵2将-120％℃或更低的温度下的液化天然气经由泵3送出，泵3将压力提高到15到35barg，优选为20到30barg。来自泵3的液化天然气被传送到多通道热交换器4，优选地是板翅型。管路5将部分汽化的液化天然气运送到具有两个出口管路的分离容器6。出口管路7将来自分离容器6的气体流运送到多通道热交换器4的一个通道30。出口管路10将来自分离容器的液体流运送到蒸馏器11，所述蒸馏器11将输入流分离成包括天然气液态产物的液体流和气体流，所述液体流通过管路12被移到冷却器(没有示出)，所述气体流通过管路13被移去并返回到多通道热交换器4，所述多通道热交换器4使用管路7所使用的分离通道31。
蒸馏器11设有重沸器20，其包括热交换器21和形成闭环的回到蒸馏器11的管路22。
离开通道30和31的流体被管路14和16运送到混合点15，在其中流体被合并。合并的流体然后被传送到泵17，并且随后在被排出之前在热交换器18中蒸发。
在图中，整个工序在深冷温度进行，例如，液化天然气的原料流典型地是在大约-170℃到-120℃温度下，例如-163℃到-130℃。使用的精确温度和压力当然将根据该工序和液化天然气原料的质量的精确的方案细节而确定。图中描述的工艺流程图的各种变化是同样可能的。例如，如果不寻常地，液化天然气原料流在足够高的初始压力下，泵3可以省略。如果设备配置需要压力在这一点上升高，附加的泵可以加到管路供料蒸馏塔11中。可以使用附加热交换器在通过泵3泵送之前加热(但是不蒸发)液化天然气原料。

Claims (14)

1.用于调节液化天然气的工序，其包括以下步骤：
i)在从15到35barg的压力范围供应液化天然气的原料流到热交换器以产生至少部分汽化的天然气流；
ii)将来自步骤(i)的至少一部分流体传送到没有回流运行的蒸馏器以产生天然气液体流和富含甲烷的流体；
iii)在没有附加压力的情况下，将来自步骤(ii)的富含甲烷的流体传送到热交换器并且通过与液化天然气的原料流的至少一部分进行热交换而冷却，以产生液化天然气流；
iv)将来自步骤(iii)的液化天然气流汽化以产生调节的天然气；和
v)回收天然气液态产物。
2.根据权利要求1所述的工序，其中液化天然气的排出流从储罐中被泵送出来；所述排出流被分成至少第一部分和第二部分；来自所述储罐的汽化气体被压缩并且随后供应给再冷凝器，该排出流的第一部分还被传送到再冷凝器，其中它吸收冷凝的汽化气体；来自该再冷凝器的输出流与来自储罐的排出流的第二部分合并；并且产生的合并流被用作步骤(i)的原料流。
3.如权利要求2所述的工序，其中所述汽化气体在压缩机中被压缩到从8到12barg的压力。
4.如权利要求1到3任何一个所述的工序，其包括以下步骤：
i)在从15到35barg的压力范围内和-120℃或更低温度下供应液化天然气的原料流到热交换器以产生至少一部分汽化的天然气流；
ia)分离至少一部分汽化的天然气流以产生富含甲烷的第一流体和富含具有2个或更多碳原子的烃的第二流体；
ii)将来自步骤(ia)的第二流体传送到蒸馏器以产生天然气液体流和富含甲烷的流体；
iii)将来自步骤(ii)的富含甲烷的流体，在任选地与来自步骤(ia)的第一流体合并之后，在没有附加压力的情况下，传送到热交换器并且通过与液化天然气的至少一部分原料流进行热交换而冷却，以产生液化天然气流；
iiia)将来自步骤(ia)的第一流体，在任选地与来自步骤(ii)的富含甲烷的流体合并之后，在没有附加压力的情况下，传送到热交换器并且通过与液化天然气的至少一部分原料流进行热交换而冷却，以产生液化天然气流；
iiib)如果从步骤(iii)和(iiia)的输出包括两个分离的流体，选择性合并它们；
iv)汽化来自步骤(iii)、(iiia)和/或(iiib)的液化天然气流，以产生调节的天然气；和
v)回收天然气液态产物。
5.如权利要求4所述的工序，其中步骤(iii)和(iiia)的热交换是在两个分离的气体流中进行，其使用多流体热交换器的两个不同的热交换器。
6.如权利要求4或5所述的工序，其中离开步骤(iii)和(iiia)的两个流体在汽化以产生调节的天然气之前被合并。
7.如权利要求1到6任何一个所述的工序，其中在从15到30barg的压力范围内供应原料流。
8.如权利要求7所述的工序，其中在从20到30barg的压力范围内供应原料流。
9.如权利要求1到8任何一个所述的工序，其中原料流通过泵送升高到需要的压力。
10.如权利要求1到9任何一个所述的工序，其中工序中使用的任一热交换器是紧凑式换热器。
11.如权利要求10所述的工序，其中工序中使用的任一热交换器是板翅式换热器。
12.如权利要求1到11任何一个所述的工序，其中液化天然气原料流的温度在从-170℃-120℃的范围之内。
13.如权利要求12所述的工序，其中液化天然气原料流的温度在从-163℃-130℃的范围之内。
14.如权利要求1到13任何一个所述的工序，其中该工序的超过90％的液化天然气原料在步骤(i)和(ii)中处理。
CNA2006800050610A 2005-02-16 2006-02-07 调节液化天然气的工序 Pending CN101128712A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0503213.1A GB0503213D0 (en) 2005-02-16 2005-02-16 Process for conditioning liquefied natural gas
GB0503213.1 2005-02-16

Publications (1)

Publication Number Publication Date
CN101128712A true CN101128712A (zh) 2008-02-20

Family

ID=34385585

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2006800050610A Pending CN101128712A (zh) 2005-02-16 2006-02-07 调节液化天然气的工序

Country Status (5)

Country Link
EP (1) EP1848946A1 (zh)
KR (1) KR20070121673A (zh)
CN (1) CN101128712A (zh)
GB (1) GB0503213D0 (zh)
WO (1) WO2006087520A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609914A (zh) * 2015-10-26 2017-05-03 安徽华尔泰化工股份有限公司 一种软管氨回收装置
CN112384731A (zh) * 2018-07-02 2021-02-19 株式会社格子技术 具有内部蒸发器的流体罐

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8959931B2 (en) 2006-09-11 2015-02-24 Exxonmobil Upstream Research Company Transporting and managing liquefied natural gas

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1501013A (fr) * 1966-09-13 1967-11-10 Air Liquide Procédé de production d'un gaz riche en méthane, sous pression élevée à partirde gaz naturel liquide sous basse pression
US6510706B2 (en) * 2000-05-31 2003-01-28 Exxonmobil Upstream Research Company Process for NGL recovery from pressurized liquid natural gas
US6941771B2 (en) * 2002-04-03 2005-09-13 Howe-Baker Engineers, Ltd. Liquid natural gas processing
US6564579B1 (en) * 2002-05-13 2003-05-20 Black & Veatch Pritchard Inc. Method for vaporizing and recovery of natural gas liquids from liquefied natural gas
CA2525428C (en) * 2003-06-05 2009-02-17 Fluor Corporation Liquefied natural gas regasification configuration and method
US6907752B2 (en) * 2003-07-07 2005-06-21 Howe-Baker Engineers, Ltd. Cryogenic liquid natural gas recovery process
WO2005045337A1 (en) * 2003-11-03 2005-05-19 Fluor Technologies Corporation Lng vapor handling configurations and methods
US7299655B2 (en) * 2003-12-15 2007-11-27 Bp Corporation North America Inc. Systems and methods for vaporization of liquefied natural gas
GB0329343D0 (en) * 2003-12-18 2004-01-21 Bp Exploration Operating Process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609914A (zh) * 2015-10-26 2017-05-03 安徽华尔泰化工股份有限公司 一种软管氨回收装置
CN112384731A (zh) * 2018-07-02 2021-02-19 株式会社格子技术 具有内部蒸发器的流体罐

Also Published As

Publication number Publication date
WO2006087520A1 (en) 2006-08-24
KR20070121673A (ko) 2007-12-27
EP1848946A1 (en) 2007-10-31
GB0503213D0 (en) 2005-03-23

Similar Documents

Publication Publication Date Title
CN100516734C (zh) 从液化天然气回收天然气液料的低温工艺
JP4966856B2 (ja) 液化天然ガスからエタンを抽出する方法
CN102272544B (zh) 用于在lng液化设备中脱氮和/或回收氦气的方法
US7299655B2 (en) Systems and methods for vaporization of liquefied natural gas
CA2682684C (en) Configurations and methods for offshore lng regasification and heating value conditioning
MX2008013462A (es) Procesamiento de gas natural licuado.
JP2008534741A (ja) Ｌｎｇ再ガス化の精製および発電との統合
KR20140123401A (ko) Lng로부터 에탄과 중질 탄화수소를 분리 및 회수하기 위한 공정
US9377239B2 (en) Dual-refluxed heavies removal column in an LNG facility
CN101128712A (zh) 调节液化天然气的工序
US8499581B2 (en) Gas conditioning method and apparatus for the recovery of LPG/NGL(C2+) from LNG
CN109748772B (zh) 从lng中分离和回收烃类的设备
CN112444100B (zh) 用于处理贫液lng的工艺和装置
EP1861671A1 (en) Process and apparatus for extracting natural gas liquids from a stream of liquefied natural gas
EP1756496B1 (en) Gas conditioning process for the recovery of lpg/ngl (c2+) from lng
CN112243479B (zh) 用于液化石油气的储存和运输的方法和系统
JP7084219B2 (ja) 天然ガスの製造装置および天然ガスの製造方法
CN111108336B (zh) 天然气生产设备及天然气生产方法
JP2014224204A (ja) ガス製造方法及びガス製造設備
CN100507416C (zh) 液化天然气蒸气处理构型和方法
CA2605862C (en) Gas conditioning method and apparatus for the recovery of lpg/ngl (c2+) from lng

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication