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1. 发明申请

WO2012172281A3 PROCESS FOR LIQUEFACTION OF NATURAL GAS 审中-公开
标题翻译：自然气体液化过程
公开(公告)号：WO2012172281A3
公开(公告)日：2013-12-05
申请号：PCT/GB2012000502
申请日：2012-06-11
申请人： GASCONSULT LTD , MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
发明人： MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
IPC分类号： F25J1/00
CPC分类号： F25J1/0022 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J1/023 , F25J1/0254 , F25J2220/62 , F25J2220/64 , F25J2270/06
摘要： A process comprising: cooling natural gas with a heat exchanger and a first expander. The heat exchanger cools the feed natural gas to temperature higher than the outlet temperature of the expander, reheating the expander outlet stream in a first cold passage of the heat exchanger to slightly below the temperature of the feed natural gas to the heat exchanger, passing the cold outlet stream from the heat exchanger into a second expander wherein it is partly liquefied, separating the outlet stream of second expander into liquid and vapour fractions, collecting the liquid fraction for use as LNG product, reheating the vapour fraction in a second cold side passage of the heat exchanger to substantially the same temperature as the temperature of the feed natural gas to the heat exchanger, recycling the reheated vapour fraction partly as feed to the first expander and partly as feed to the heat exchanger.
摘要翻译：一种方法，包括：用热交换器和第一膨胀器冷却天然气。热交换器将进料天然气冷却至高于膨胀器的出口温度的温度，将热交换器的第一冷通道中的膨胀器出口流重新加热到略低于进入热交换器的进料天然气的温度，冷热出口流从热交换器进入第二膨胀器，其中部分液化，将第二膨胀机的出口流分离成液体和蒸气馏分，收集用作LNG产品的液体馏分，在第二冷侧通道中再加热蒸气馏分的热交换器的温度与进入到热交换器的进料天然气的温度基本相同的温度，将再加热的蒸汽馏分部分地作为进料再循环到第一膨胀器，并且部分地作为进料到热交换器。

2. 发明申请

WO2012172281A2 PROCESS FOR LIQUEFACTION OF NATURAL GAS 审中-公开
标题翻译：自然气体液化过程
公开(公告)号：WO2012172281A2
公开(公告)日：2012-12-20
申请号：PCT/GB2012/000502
申请日：2012-06-11
申请人： GASCONSULT LIMITED , MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
发明人： MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
IPC分类号： F25J1/02
CPC分类号： F25J1/0022 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J1/023 , F25J1/0254 , F25J2220/62 , F25J2220/64 , F25J2270/06
摘要： A process comprising: cooling natural gas with a heat exchanger and a first expander. The heat exchanger cools the feed natural gas to temperature higher than the outlet temperature of the expander, reheating the expander outlet stream in a first cold passage of the heat exchanger to slightly below the temperature of the feed natural gas to the heat exchanger, passing the cold outlet stream from the heat exchanger into a second expander wherein it is partly liquefied, separating the outlet stream of second expander into liquid and vapour fractions, collecting the liquid fraction for use as LNG product, reheating the vapour fraction in a second cold side passage of the heat exchanger to substantially the same temperature as the temperature of the feed natural gas to the heat exchanger, recycling the reheated vapour fraction partly as feed to the first expander and partly as feed to the heat exchanger.
摘要翻译：一种方法，包括：用热交换器和第一膨胀器冷却天然气。热交换器将进料天然气冷却至高于膨胀器的出口温度的温度，将热交换器的第一冷通道中的膨胀器出口流重新加热到略低于进入热交换器的进料天然气的温度，冷热出口流从热交换器进入第二膨胀器，其中部分液化，将第二膨胀机的出口流分离成液体和蒸气馏分，收集用作LNG产品的液体馏分，在第二冷侧通道中再加热蒸气馏分的热交换器的温度与进入到热交换器的进料天然气的温度基本相同的温度，将再加热的蒸汽馏分部分地作为进料再循环到第一膨胀器，并且部分地作为进料到热交换器。

3. 发明申请

WO2010109184A1 PROCESS FOR GENERATING HYDROGEN AND CARBON DIOXIDE FROM A HYDROCARBON FEEDSTOCK 审中-公开
标题翻译：从碳氢化合物产生二氧化碳和二氧化碳的方法
公开(公告)号：WO2010109184A1
公开(公告)日：2010-09-30
申请号：PCT/GB2010/000542
申请日：2010-03-23
申请人： HYDROGEN ENERGY INTERNATIONAL LIMITED , SKINNER, Geoffrey Frederick , ZHANG, Ning
发明人： SKINNER, Geoffrey Frederick , ZHANG, Ning
IPC分类号： C01B3/36 , C01B3/50
CPC分类号： C01B3/52 , C01B3/36 , C01B3/506 , C01B3/56 , C01B2203/025 , C01B2203/0255 , C01B2203/0415 , C01B2203/043 , C01B2203/046 , C01B2203/047 , C01B2203/0475 , C01B2203/06 , C01B2203/0894 , C01B2203/145 , C01B2203/148 , C01B2203/86 , F01K3/188 , F25J3/04533 , F25J3/04539 , F25J3/04575 , F25J3/0625 , F25J3/0655 , F25J3/0665 , F25J2215/02 , F25J2245/02 , F25J2260/80 , Y02P20/129 , Y02P30/30
摘要： A process is described for generating hydrogen and carbon dioxide from a hydrocarbon feedstock. In some examples, the carbon dioxide is sequestered and/or used in a chemical process. In an example, the process comprises the steps of: (a) introducing (1) a fuel feed stream comprising a hydrocarbon feedstock, and (2) an first oxidant feed stream comprising at least 90 mole % oxygen to a non catalytic partial oxidation reactor unit (POx) for the production of synthesis gas wherein (i) the temperature of the fuel feed stream is in the range 100 to 7000C, and (ii) the molar ratio of oxygen contained in the first oxidant feed stream to carbon (in hydrocarbons) in the fuel feed stream is from 0.5 : 1 to 1.0: 1; (b) withdrawing a synthesis gas stream comprising hydrogen, carbon dioxide and carbon monoxide from the partial oxidation reactor unit and introducing the synthesis gas stream to a heat exchanger where heat generated in the partial oxidation reactor is used for the generation of steam and/or superheated steam; (c) withdrawing a cooled synthesis gas stream from the heat exchanger and introducing the cooled synthesis gas stream to a carbon oxides separation facility where it is separated into (1) a carbon oxides stream comprising carbon dioxide and carbon monoxide, and (2) a hydrogen stream comprising hydrogen and optionally nitrogen; (d) introducing the carbon oxides stream and a second oxidant feed stream comprising at least 90 mole% oxygen (based on the total moles of oxygen and of any nitrogen • in the second oxidant feed stream) to an oxycombustion boiler for the production of a carbon dioxide stream and using the heat generated by combustion of the carbon oxides stream in the boiler for the production of steam and/or superheated steam. The carbon dioxide stream and hydrogen stream may be exported from the process. The process may further include sequestering the carbon dioxide stream and/or using the carbon dioxide in a chemical process.
摘要翻译：描述了从烃原料产生氢气和二氧化碳的方法。在一些实例中，二氧化碳被隔离和/或在化学过程中使用。在一个实例中，该方法包括以下步骤：（a）引入（1）包含烃原料的燃料进料流，和（2）包含至少90摩尔％氧气的第一氧化剂进料流至非催化部分氧化反应器用于生产合成气的单元（POx），其中（i）燃料进料流的温度在100至700℃的范围内，和（ii）第一氧化剂进料流中包含的氧与碳的摩尔比（在烃中）为0.5:1至1.0:1; （b）从部分氧化反应器单元中取出包含氢气，二氧化碳和一氧化碳的合成气流，并将合成气流引入热交换器，其中在部分氧化反应器中产生的热量用于产生蒸汽和/或过热蒸汽（c）从热交换器中取出冷却的合成气流，并将冷却的合成气流引入到碳氧化物分离设备中，在此将其分离为（1）包含二氧化碳和一氧化碳的碳氧化物流，和（2）氢气流包含氢气和任选的氮气; （d）将碳氧化物流和第二氧化剂进料流引入氧燃烧锅炉中，所述第二氧化剂进料流包含至少90摩尔％的氧（基于氧的总摩尔数和第二氧化剂进料流中的任何氮）二氧化碳流，并使用由锅炉中的碳氧化物流燃烧产生的热量来生产蒸汽和/或过热蒸汽。二氧化碳流和氢气流可以从该方法输出。该方法还可以包括在化学过程中隔离二氧化碳流和/或使用二氧化碳。

4. 发明申请

WO2010109181A1 PRODUCTION OF CARBON DIOXIDE AND POWER FROM A HYDROCARBON FEEDSTOCK 审中-公开
标题翻译：二氧化碳和二氧化碳的生产来自一个碳氢化合物
公开(公告)号：WO2010109181A1
公开(公告)日：2010-09-30
申请号：PCT/GB2010/000539
申请日：2010-03-23
申请人： HYDROGEN ENERGY INTERNATIONAL LIMITED , GIBSON, Chris , SKINNER, Geoffrey, Frederick , ZHANG, Ning
发明人： GIBSON, Chris , SKINNER, Geoffrey, Frederick , ZHANG, Ning
IPC分类号： C01B3/38 , C01B3/48 , C01B3/50
CPC分类号： C01B3/382 , C01B3/48 , C01B3/50 , C01B3/501 , C01B3/506 , C01B3/52 , C01B2203/0244 , C01B2203/0283 , C01B2203/04 , C01B2203/0405 , C01B2203/0415 , C01B2203/042 , C01B2203/046 , C01B2203/0475 , C01B2203/0495 , C01B2203/06 , C01B2203/0894 , C01B2203/1235 , C01B2203/127 , C01B2203/148 , C01B2203/84 , F01K3/188 , Y02E20/344 , Y02P20/13 , Y02P30/30
摘要： A process for the production of carbon dioxide in concentrated form and electricity from a hydrocarbon feedstock said process comprising the steps of: a) introducing an oxidant feed stream comprising oxygen or enriched air comprising at least 25 mole% oxygen (on a dry basis) and optionally steam and a fuel feed stream comprising methane and optionally hydrogen and/or steam to an autothermal reactor unit (ATR) for the production of synthesis gas wherein (i) the temperature of the fuel feed stream is in the range 350 to 700°C; and (ii) the molar ratio of oxygen contained in the oxidant feed stream to carbon (in hydrocarbons) in the fuel feed stream is from 0.45:1 to 0.85:1, preferably 0.55:1 to 0.7: 1; b) withdrawing a synthesis gas stream comprising methane, hydrogen, carbon monoxide, carbon dioxide, steam and optionally nitrogen from the ATR and heat exchanging the synthesis gas stream with at least one process stream selected from the group consisting of a water stream for the production of steam, a hydrocarbon feedstock, a pre-reformer feed stream, the fuel feed stream, a hydrogen stream, boiler feed water, a condensate stream, and steam for the production of superheated steam; c) if necessary, introducing steam to the synthesis gas stream before passing at least a portion of the synthesis gas stream to a shift converter unit where the synthesis gas reacts with steam to generate additional carbon dioxide and hydrogen; d) withdrawing a shift converted gas stream from the shift converter unit and heat exchanging the shift converted gas stream with at least one process stream selected from the group consisting of a hydrocarbon feedstock, a pre-reformer feed stream, the fuel feed stream, a hydrogen stream, boiler feed water, a condensate stream, water for the production of steam and steam for the production of superheated steam; e) passing the shift converted gas stream to a carbon dioxide separation unit for the separation of a concentrated carbon dioxide stream from a hydrogen stream comprising hydrogen and optionally nitrogen; f) combusting at least part of the hydrogen stream in a gas turbine wherein the gas turbine drives an electric generator thereby producing electricity and wherein combustion of the hydrogen stream generates an exhaust gas.
摘要翻译：一种用于从碳氢化合物原料生产浓缩二氧化碳和电的方法，所述方法包括以下步骤：a）引入包含氧气或富含空气的氧化剂进料流，所述氧气或富含空气包含至少25摩尔％的氧气（以干基计）和任选的蒸汽和包含甲烷和任选的氢气和/或蒸汽的燃料进料流到用于生产合成气的自热反应器单元（ATR），其中（i）燃料进料流的温度在350-700℃的范围内 ; 和（ii）燃料进料流中氧化剂进料流中的氧与碳（在烃中）的摩尔比为0.45:1至0.85:1，优选0.55:1至0.7:1; b）从ATR中取出包含甲烷，氢气，一氧化碳，二氧化碳，蒸汽和任选的氮的合成气流，并用至少一种工艺流将所述合成气流热交换，所述工艺流选自用于生产的水流蒸汽，烃原料，预重整器进料流，燃料进料流，氢气流，锅炉给水，冷凝物流和用于生产过热蒸汽的蒸汽; c）如果需要，在将至少一部分合成气流送入转化器单元之前将合成气流引入合成气流中，其中合成气与蒸汽反应产生额外的二氧化碳和氢气; d）从所述换档转换器单元中取出换档转换气流并用至少一种选自烃原料，预重整器进料流，所述燃料进料流，氢气流，锅炉给水，冷凝水，用于生产蒸汽和蒸汽的水生产过热蒸汽; e）将转移后的气流送入二氧化碳分离装置，用于从浓氢气和任选的氮气分离浓缩的二氧化碳流; f）在燃气轮机中燃烧至少部分氢气流，其中燃气轮机驱动发电机从而产生电力，并且其中氢气流的燃烧产生废气。

5. 发明申请

WO2008139208A2 PROCESS FOR THE REMOVAL OF CARBON DIOXIDE FROM GAS STREAMS 审中-公开
标题翻译：从气体流中去除二氧化碳的方法
公开(公告)号：WO2008139208A2
公开(公告)日：2008-11-20
申请号：PCT/GB2008001698
申请日：2008-05-16
申请人： HYDROGEN ENERGY INTERNAT LTD , MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
发明人： MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
IPC分类号： C10L3/10
CPC分类号： C10L3/10 , C10L3/102 , Y02C10/06 , Y02C10/14
摘要： A process for the removal and recovery of carbon dioxide from a gaseous stream, in particular the removal and recovery of carbon dioxide, and optionally hydrogen sulphide, from a natural and/or synthesis gas stream. Furthermore, the present invention provides for the release of the removed and recovered carbon dioxide, and optionally hydrogen sulphide, at an elevated pressure, thereby reducing the high carbon dioxide compression costs associated with further chemical processing e.g. for underground carbon sequestration and/or for subsurface enhanced hydrocarbon recovery and/or for the manufacture of urea.
摘要翻译：一种从气流中去除和回收二氧化碳的方法，特别是从天然气和/或合成气流中去除和回收二氧化碳和任选的硫化氢。此外，本发明提供在升高的压力下释放和回收的二氧化碳和任选的硫化氢，从而降低与进一步的化学处理相关的高二氧化碳压缩成本，例如。用于地下碳汇和/或用于地下强化烃回收和/或用于制造尿素。

6. 发明申请

WO2011026771A1 PRODUCTION OF AMMONIA MAKE-UP SYNGAS WITH CRYOGENIC PURIFICATION 审中-公开
标题翻译：生产具有低温纯度的氨基酸制备法
公开(公告)号：WO2011026771A1
公开(公告)日：2011-03-10
申请号：PCT/EP2010/062417
申请日：2010-08-25
申请人： AMMONIA CASALE SA , FILIPPI, Ermanno , SKINNER, Geoffrey Frederick
发明人： FILIPPI, Ermanno , SKINNER, Geoffrey Frederick
IPC分类号： C01B3/02 , C01B3/38 , C01B3/48 , C01B3/50 , C01B3/58 , F25J3/02
CPC分类号： C01B3/34 , C01B3/025 , C01B3/38 , C01B3/382 , C01B3/48 , C01B3/506 , C01B3/586 , C01B2203/0216 , C01B2203/0233 , C01B2203/0283 , C01B2203/0445 , C01B2203/046 , C01B2203/047 , C01B2203/0475 , C01B2203/068 , C01B2203/1241 , F25J3/0209 , F25J3/0219 , F25J3/0276 , F25J3/04539 , F25J3/04587 , F25J2200/02 , F25J2200/74 , F25J2210/20 , F25J2210/42 , F25J2270/904 , F25J2290/80 , Y02C10/12 , Y10T29/49716
摘要： A process and a related equipment for making ammonia make-up synthesis gas are disclosed, where: a hydrocarbon feedstock is reformed obtaining a raw ammonia make-up syngas stream; said raw syngas is purified in a cryogenic purification section refrigerated by a nitrogen-rich stream produced in an air separation unit; the nitrogen-rich stream at output of said cryogenic section is further used for adjusting the hydrogen/nitrogen ratio of the purified make-up syngas; an oxygen-rich stream is also produced in said air separation unit and is fed to the reforming section.
摘要翻译：公开了用于制备氨化学合成气的方法和相关设备，其中：重整烃原料获得原氨化学合成气流; 所述粗合成气在由空气分离单元中产生的富氮流冷藏的低温净化部分中纯化; 所述低温部分的输出处的富氮流进一步用于调节纯化的补充合成气的氢/氮比; 在所述空气分离单元中也产生富氧流，并将其供给至重整部。

7. 发明申请

WO2009068159A1 PROCESS FOR PRODUCING AMMONIA SYNTHESIS GAS 审中-公开
标题翻译：生产氨合成气的方法
公开(公告)号：WO2009068159A1
公开(公告)日：2009-06-04
申请号：PCT/EP2008/009341
申请日：2008-11-06
申请人： AMMONIA CASALE S.A. , FILIPPI, Ermanno , BADANO, Marco , SKINNER, Geoffrey Frederick
发明人： FILIPPI, Ermanno , BADANO, Marco , SKINNER, Geoffrey Frederick
IPC分类号： C01B3/02
CPC分类号： C01B3/025 , C01B3/382 , C01B3/48 , C01B2203/0233 , C01B2203/0244 , C01B2203/025 , C01B2203/0415 , C01B2203/042 , C01B2203/0435 , C01B2203/047 , C01B2203/0475 , C01B2203/068 , C01B2203/1235 , C01B2203/142 , C01B2203/147 , C01C1/0405
摘要： The present invention concerns a process for producing ammonia synthesis gas from the reforming of hydrocarbons with steam in a primary reformer (1) equipped with a plurality of externally heated catalytic tubes and then in a secondary reformer (2) together with an oxidant gas. In this process, the reaction of said hydrocarbons with said steam in said primary reformer (1) is performed at an operating pressure of at least 45 bar in the catalytic tubes and a flow of essentially pure oxygen or oxygen-enriched air is added to said secondary reformer as oxidant gas for substantially reforming together with said all the hydrocarbons content of said product gas exiting the primary reformer (1). In the case essentially pure oxygen is used as oxidant gas, a flow of nitrogen is added downstream the secondary reformer (2) to reach a N2/H2 molar ratio corresponding to or close to the stoichiometric ratio for ammonia synthesis. This process allows to obtain high synthesis gas production capacities and lower investment and energy costs.
摘要翻译：本发明涉及一种在具有多个外部加热的催化管的初级重整器（1）中随后与二次重整器（2）一起氧化剂气体从具有蒸汽的烃类重整生产氨合成气的方法。在该方法中，在所述初级重整器（1）中所述烃与所述蒸汽的反应在催化管中在至少45巴的操作压力下进行，并且将基本上纯的氧气或富氧空气流加入到所述二次重整器作为氧化剂气体，用于与所述一次重整器（1）离开的所述产物气体的所有烃含量一起实质上重整。在使用基本上纯的氧作为氧化剂气体的情况下，在二次重整器（2）的下游加入氮气流，以达到对应于或接近氨合成化学计量比的N 2 / H 2摩尔比。该过程允许获得高合成气生产能力，降低投资和能源成本。

8. 发明申请

WO2008139208A3 PROCESS FOR THE REMOVAL OF CARBON DIOXIDE FROM GAS STREAMS 审中-公开
公开(公告)号：WO2008139208A3
公开(公告)日：2008-11-20
申请号：PCT/GB2008/001698
申请日：2008-05-16
申请人： HYDROGEN ENERGY INTERNATIONAL LIMITED , MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
发明人： MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
IPC分类号： C10L3/10
摘要： A process for the removal and recovery of carbon dioxide from a gaseous stream, in particular the removal and recovery of carbon dioxide, and optionally hydrogen sulphide, from a natural and/or synthesis gas stream. Furthermore, the present invention provides for the release of the removed and recovered carbon dioxide, and optionally hydrogen sulphide, at an elevated pressure, thereby reducing the high carbon dioxide compression costs associated with further chemical processing e.g. for underground carbon sequestration and/or for subsurface enhanced hydrocarbon recovery and/or for the manufacture of urea.

9. 发明申请

WO2003019095A1 METHOD FOR LIQUEFYING METHANE-RICH GAS 审中-公开
标题翻译：用于液化甲烷气的方法
公开(公告)号：WO2003019095A1
公开(公告)日：2003-03-06
申请号：PCT/GB2002/003844
申请日：2002-08-20
申请人： GASCONSULT LIMITED , MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
发明人： MAUNDER, Anthony, Dwight , SKINNER, Geoffrey, Frederick
IPC分类号： F25J1/02
CPC分类号： F25J1/0278 , F25J1/0022 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0042 , F25J1/0045 , F25J1/0052 , F25J1/0219 , F25J1/025 , F25J1/0255 , F25J2205/02 , F25J2205/04 , F25J2220/62 , F25J2220/64 , F25J2235/60 , F25J2240/40 , F25J2245/02
摘要： A method for liquefying methane-rich gas in the form of a feed gas (1) comprising the steps of cooling the gas (A, C, E) and partially liquefying the gas by expansion within an expansion device (F). The pressure of the gas at the inlet (7) of the expansion device is in the range from (40 to 100) bar and the pressure of the gas at the outlet (8) of the expansion device is in the range from (2 to 10) bar.
摘要翻译：一种用于液化进料气体（1）形式的富甲烷气体的方法，包括以下步骤：在膨胀装置（F）内通过膨胀冷却气体（A，C，E）并部分地液化气体。膨胀装置的入口（7）处的气体的压力在（40〜100）的范围内，膨胀装置的出口（8）处的气体的压力在（2〜 10）吧。

10. 发明申请

WO2012172281A4 PROCESS FOR LIQUEFACTION OF NATURAL GAS 审中-公开
标题翻译：自然气体液化过程
公开(公告)号：WO2012172281A4
公开(公告)日：2014-01-09
申请号：PCT/GB2012000502
申请日：2012-06-11
申请人： GASCONSULT LTD , MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
发明人： MAUNDER ANTHONY DWIGHT , SKINNER GEOFFREY FREDERICK
IPC分类号： F25J1/00
CPC分类号： F25J1/0022 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J1/023 , F25J1/0254 , F25J2220/62 , F25J2220/64 , F25J2270/06
摘要： A process comprising: cooling natural gas with a heat exchanger and a first expander. The heat exchanger cools the feed natural gas to temperature higher than the outlet temperature of the expander, reheating the expander outlet stream in a first cold passage of the heat exchanger to slightly below the temperature of the feed natural gas to the heat exchanger, passing the cold outlet stream from the heat exchanger into a second expander wherein it is partly liquefied, separating the outlet stream of second expander into liquid and vapour fractions, collecting the liquid fraction for use as LNG product, reheating the vapour fraction in a second cold side passage of the heat exchanger to substantially the same temperature as the temperature of the feed natural gas to the heat exchanger, recycling the reheated vapour fraction partly as feed to the first expander and partly as feed to the heat exchanger.
摘要翻译：一种方法，包括：用热交换器和第一膨胀器冷却天然气。热交换器将进料天然气冷却至高于膨胀器的出口温度的温度，将热交换器的第一冷通道中的膨胀器出口流重新加热到略低于进入热交换器的进料天然气的温度，冷热出口流从热交换器进入第二膨胀器，其中部分液化，将第二膨胀机的出口流分离成液体和蒸气馏分，收集用作LNG产品的液体馏分，在第二冷侧通道中再加热蒸气馏分的热交换器的温度与进入到热交换器的进料天然气的温度基本相同的温度，将再加热的蒸汽馏分部分地作为进料再循环到第一膨胀器，并且部分地作为进料到热交换器。

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