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21. 发明授权

US08919148B2 Hydrocarbon gas processing 有权
标题翻译：烃类气体加工
公开(公告)号：US08919148B2
公开(公告)日：2014-12-30
申请号：US12206230
申请日：2008-09-08
申请人： John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar , Tony L. Martinez
发明人： John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar , Tony L. Martinez
IPC分类号： F25J3/00 , F25J3/02
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/78 , F25J2205/04 , F25J2240/02 , F25J2290/40
摘要： A process for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and is thereafter expanded to the fractionation tower pressure and supplied to the fractionation tower at a first mid-column feed position. The second stream is expanded to the tower pressure and is then supplied to the column at a second mid-column feed position. A vapor distillation stream is withdrawn from the column above the feed point of the second stream and is then directed into heat exchange relation with the tower overhead vapor stream to cool the vapor distillation stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation tower as its top feed. The quantities and temperatures of the feeds to the fractionation tower are effective to maintain the overhead temperature of the fractionation tower at a temperature whereby the major portion of the desired components is recovered.
摘要翻译：公开了从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法。将流冷却并分成第一和第二流。将第一流进一步冷却以基本上将其全部冷凝，然后将其扩展至分馏塔压力，并以第一中间柱进料位置供应至分馏塔。将第二流扩张到塔压力，然后在第二中柱进料位置处供给塔。将蒸气蒸馏物流从第二物流的进料点上方的塔中取出，然后导入与塔顶塔顶蒸气流的热交换关系，以冷却蒸气蒸馏物流并冷凝至少一部分，形成冷凝物流。冷凝流的至少一部分作为顶部进料被引导至分馏塔。进入分馏塔的进料的量和温度对于将分馏塔的塔顶温度维持在所需组分的主要部分被回收的温度是有效的。

22. 发明授权

US08434325B2 Liquefied natural gas and hydrocarbon gas processing 有权
标题翻译：液化天然气和碳氢化合物气体加工
公开(公告)号：US08434325B2
公开(公告)日：2013-05-07
申请号：US12466669
申请日：2009-05-15
申请人： Tony L. Martinez , John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
发明人： Tony L. Martinez , John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00 , F17C9/02
CPC分类号： F25J3/0209 , F25J3/0214 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/38 , F25J2200/50 , F25J2200/78 , F25J2205/02 , F25J2205/04 , F25J2210/02 , F25J2210/62 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2270/904 , F25J2290/40
摘要： A process for the recovery of heavier hydrocarbons from a liquefied natural gas (LNG) stream and a hydrocarbon gas stream is disclosed. The LNG feed stream is heated to vaporize at least part of it, then expanded and supplied to a fractionation column at a first mid-column feed position. The gas stream is expanded and cooled, then supplied to the column at a second mid-column feed position. A distillation vapor stream is withdrawn from the fractionation column below the mid-column feed positions and directed in heat exchange relation with the LNG feed stream, cooling the distillation vapor stream as it supplies at least part of the heating of the LNG feed stream. The distillation vapor stream is cooled sufficiently to condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation column as its top feed. A portion of the column overhead stream is also directed in heat exchange relation with the LNG feed stream, so that it also supplies at least part of the heating of the LNG feed stream as it is condensed to form a “lean” LNG stream. The quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered in the bottom liquid product from the column.
摘要翻译：公开了从液化天然气（LNG）流和烃气流中回收较重烃的方法。加热LNG进料流至少部分蒸发，然后膨胀并在第一中间柱进料位置供应至分馏塔。将气流膨胀并冷却，然后在第二中间柱进料位置供给塔。蒸馏蒸气流从中间塔进料位置以下的分馏塔中排出，并与LNG进料流热交换，并蒸发蒸馏物流，至少部分加热LNG进料流。将蒸馏蒸气流充分冷却以冷凝其至少一部分，形成冷凝流。冷凝流的至少一部分作为其顶部进料被引导至分馏塔。塔顶塔顶物流的一部分也与LNG进料流进行热交换，从而当LNG进料流被冷凝以形成“贫”LNG流时，其还提供LNG进料流的至少一部分加热。进料到塔的数量和温度有效地将塔顶温度维持在一个温度，从而使所需组分的主要部分在塔的底部液体产物中回收。

23. 发明申请

US20110226012A1 Hydrocarbon Gas Processing 有权
标题翻译：烃气处理
公开(公告)号：US20110226012A1
公开(公告)日：2011-09-22
申请号：US13052348
申请日：2011-03-21
申请人： Andrew F. Johnke , W. Larry Lewis , L. Don Tyler , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
发明人： Andrew F. Johnke , W. Larry Lewis , L. Don Tyler , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/08
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/70 , F25J2200/74 , F25J2200/76 , F25J2200/80 , F25J2205/02 , F25J2205/04 , F25J2210/06 , F25J2235/60 , F25J2240/02 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2290/40
摘要： A process and an apparatus are disclosed for a compact processing assembly to recover C2 (or C3) components and heavier hydrocarbon components from a hydrocarbon gas stream. The gas stream is cooled and divided into first and second streams. The first stream is further cooled, expanded to lower pressure, and supplied as a feed between first and second absorbing means. The second stream is expanded to lower pressure and supplied as bottom feed to the second absorbing means. A distillation vapor stream from the first absorbing means is heated, compressed to higher pressure, and divided into a volatile residue gas fraction and a compressed recycle stream. The compressed recycle stream is cooled, expanded to lower pressure, and supplied as top feed to the first absorbing means. A distillation liquid stream from the second absorbing means is heated in a heat and mass transfer means to strip out its volatile components.
摘要翻译：公开了一种用于紧凑加工组件从烃气流中回收C2（或C3）组分和较重烃组分的方法和装置。将气流冷却并分成第一和第二流。第一流进一步冷却，膨胀至较低压力，并作为第一和第二吸收装置之间的进料供应。第二流扩张到较低的压力，并作为底部进料供给到第二吸收装置。将来自第一吸收装置的蒸馏蒸气物流加热，压缩至较高压力，并分成挥发性残余气体馏分和压缩循环流。将压缩的再循环料流冷却，膨胀至较低压力，并作为顶部进料供应至第一吸收装置。来自第二吸收装置的蒸馏液体流在热和质量传递装置中被加热以除去其挥发性组分。

24. 发明申请

US20110167868A1 HYDROCARBON GAS PROCESSING 有权
标题翻译：油气加工
公开(公告)号：US20110167868A1
公开(公告)日：2011-07-14
申请号：US12979563
申请日：2010-12-28
申请人： Michael C. Pierce , John D. Wilkinson , Hank M. Hudson
发明人： Michael C. Pierce , John D. Wilkinson , Hank M. Hudson
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J2200/04 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2200/78 , F25J2200/94 , F25J2205/04 , F25J2210/12 , F25J2230/30 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2270/12 , F25J2270/60
摘要： A process and an apparatus are disclosed for recovering ethane, ethylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The stream is cooled, expanded to lower pressure, and supplied to a first fractionation tower at a mid-column feed position. A distillation liquid stream is withdrawn from the first fractionation tower below the feed position of the expanded stream, heated, and directed into a second fractionation tower that produces an overhead vapor stream and a bottom liquid stream. The overhead vapor stream is cooled to condense it, with a portion of the condensed stream directed to the second fractionation tower as its top feed and the remainder directed to the first fractionation tower at a lower column feed position. The bottom liquid stream from the second fractionation tower is cooled and directed to the first fractionation tower as its top feed.
摘要翻译：公开了从烃气流中回收乙烷，乙烯和较重烃组分的方法和装置。将料流冷却，膨胀至较低压力，并在中间柱进料位置供应至第一分馏塔。蒸馏液体流从第一分馏塔排出到膨胀物流的进料位置以下，被加热，并引导到产生顶部蒸汽流和底部液体物流的第二分馏塔中。将塔顶蒸气物流冷却以使其冷凝，一部分冷凝物流作为其顶部进料引导至第二分馏塔，其余部分以较低塔进料位置引导至第一分馏塔。将来自第二分馏塔的底部液体物流冷却并引导至第一分馏塔作为其顶部进料。

25. 发明申请

US20110120183A9 Liquefied natural gas and hydrocarbon gas processing 有权
标题翻译：液化天然气和碳氢化合物气体加工
公开(公告)号：US20110120183A9
公开(公告)日：2011-05-26
申请号：US12479061
申请日：2009-06-05
申请人： John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
发明人： John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00
CPC分类号： F25J1/0231 , F25J1/0022 , F25J1/0035 , F25J1/0037 , F25J1/004 , F25J1/0045 , F25J1/0201 , F25J1/023 , F25J1/0232 , F25J3/0209 , F25J3/0233 , F25J2200/02 , F25J2200/72 , F25J2205/04 , F25J2210/06 , F25J2215/02 , F25J2215/04 , F25J2220/64 , F25J2230/60 , F25J2240/02 , F25J2245/02 , F25J2245/90 , F25J2260/10 , F25J2260/60 , F25J2270/02
摘要： A process and an apparatus for liquefying a portion of a natural gas stream are disclosed. The natural gas stream is cooled under pressure and divided into a first stream and a second stream. The first stream is cooled, expanded to an intermediate pressure, and supplied to a lower feed point on a distillation column. The second stream is expanded to the intermediate pressure and divided into two portions. One portion is cooled and then supplied to a mid-column feed point on the distillation column; the other portion is used to cool the first stream. The bottom product from this distillation column preferentially contains the majority of any hydrocarbons heavier than methane that would otherwise reduce the purity of the liquefied natural gas, so that the overhead vapor from the distillation column contains essentially only methane and lighter components. This overhead vapor is cooled and condensed, and a portion of the condensed stream is supplied to a top feed point on the distillation column to serve as reflux. A second portion of the condensed stream is expanded to low pressure to form the liquefied natural gas stream.
摘要翻译：公开了一种用于液化天然气流的一部分的方法和装置。将天然气流在压力下冷却并分成第一流和第二流。将第一流冷却，膨胀至中间压力，并供给到蒸馏塔上的下进料点。将第二流扩展到中间压力并分成两部分。一部分被冷却，然后供应到蒸馏塔上的中间柱进料点; 另一部分用于冷却第一流。来自该蒸馏塔的底部产物优选含有比甲烷重的任何烃的大部分，否则会降低液化天然气的纯度，使得来自蒸馏塔的塔顶蒸气基本上仅含有甲烷和较轻组分。将该塔顶蒸气冷却并冷凝，并将一部分冷凝流供应至蒸馏塔上的顶部进料点，以作为回流。冷凝流的第二部分膨胀到低压以形成液化的天然气流。

26. 发明申请

US20100326134A1 Hydrocarbon Gas Processing 有权
标题翻译：烃气处理
公开(公告)号：US20100326134A1
公开(公告)日：2010-12-30
申请号：US12792136
申请日：2010-06-02
申请人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
发明人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0266 , F25J3/0295 , F25J2200/02 , F25J2200/50 , F25J2200/74 , F25J2200/80 , F25J2205/04 , F25J2215/04 , F25J2235/80 , F25J2240/02 , F25J2240/40 , F25J2260/20 , F25J2260/80 , F25J2270/02 , F25J2270/90 , F25J2290/40 , Y02C10/12
摘要： A process and an apparatus are disclosed for a compact processing assembly to remove carbon dioxide from a hydrocarbon gas stream. The gas stream is cooled, expanded to intermediate pressure, and fed to the top of a mass transfer means. A distillation liquid stream from the mass transfer means is heated in a first heat and mass transfer means to strip out its volatile components and form a bottom liquid product. A distillation vapor stream from the mass transfer means is combined with any vapor in the expanded cooled gas stream, and the combined vapor stream is cooled in a second heat and mass transfer means to partially condense it, forming a condensed stream that is fed to the top of the mass transfer means. A portion of the bottom liquid product is subcooled, expanded to lower pressure, and used to cool the combined vapor stream.
摘要翻译：公开了一种用于从烃气流中除去二氧化碳的紧凑加工组件的方法和装置。将气流冷却，膨胀至中压，并送入传质装置的顶部。来自质量传递装置的蒸馏液体流在第一热传质装置中被加热以除去其挥发性组分并形成底部液体产物。来自传质装置的蒸馏蒸汽流与膨胀冷却气流中的任何蒸气组合，并且将组合的蒸气流在第二热传质装置中冷却以部分地冷凝，形成冷凝流，传输手段的顶部。底部液体产物的一部分被过冷，膨胀到较低的压力，并用于冷却组合的蒸气流。

27. 发明申请

US20100287985A1 Liquefied Natural Gas And Hydrocarbon Gas Processing 有权
标题翻译：液化天然气和烃类气体加工
公开(公告)号：US20100287985A1
公开(公告)日：2010-11-18
申请号：US12466669
申请日：2009-05-15
申请人： Tony L. Martinez , John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
发明人： Tony L. Martinez , John D. Wilkinson , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , F25J3/0214 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/38 , F25J2200/50 , F25J2200/78 , F25J2205/02 , F25J2205/04 , F25J2210/02 , F25J2210/62 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2270/904 , F25J2290/40
摘要： A process for the recovery of heavier hydrocarbons from a liquefied natural gas (LNG) stream and a hydrocarbon gas stream is disclosed. The LNG feed stream is heated to vaporize at least part of it, then expanded and supplied to a fractionation column at a first mid-column feed position. The gas stream is expanded and cooled, then supplied to the column at a second mid-column feed position. A distillation vapor stream is withdrawn from the fractionation column below the mid-column feed positions and directed in heat exchange relation with the LNG feed stream, cooling the distillation vapor stream as it supplies at least part of the heating of the LNG feed stream. The distillation vapor stream is cooled sufficiently to condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation column as its top feed. A portion of the column overhead stream is also directed in heat exchange relation with the LNG feed stream, so that it also supplies at least part of the heating of the LNG feed stream as it is condensed to form a “lean” LNG stream. The quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered in the bottom liquid product from the column.
摘要翻译：公开了从液化天然气（LNG）流和烃气流中回收较重烃的方法。加热LNG进料流至少部分蒸发，然后膨胀并在第一中间柱进料位置供应至分馏塔。将气流膨胀并冷却，然后在第二中间柱进料位置供给塔。蒸馏蒸气流从中间塔进料位置以下的分馏塔中排出，并与LNG进料流热交换，并蒸发蒸馏物流，至少部分加热LNG进料流。将蒸馏蒸气流充分冷却以冷凝其至少一部分，形成冷凝流。冷凝流的至少一部分作为其顶部进料被引导至分馏塔。塔顶塔顶物流的一部分也与LNG进料流进行热交换，从而当LNG进料流被冷凝以形成“贫”LNG流时，其还提供LNG进料流的至少一部分加热。进料到塔的数量和温度有效地将塔顶温度维持在一个温度，从而使所需组分的主要部分在塔的底部液体产物中回收。

28. 发明申请

US20100287984A1 HYDROCARBON GAS PROCESSING 有权
标题翻译：油气加工
公开(公告)号：US20100287984A1
公开(公告)日：2010-11-18
申请号：US12781259
申请日：2010-05-17
申请人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
发明人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J3/0295 , F25J2200/02 , F25J2200/30 , F25J2200/78 , F25J2200/80 , F25J2205/04 , F25J2210/12 , F25J2240/02 , F25J2270/12 , F25J2270/60 , F25J2290/40
摘要： A process and an apparatus are disclosed for a compact processing assembly to recover ethane, ethylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The gas stream is cooled and divided into first and second streams. The first stream is further cooled, expanded to lower pressure, and supplied as a feed between two absorbing means. The second stream is expanded to lower pressure and supplied as a bottom feed to the lower absorbing means. A distillation liquid stream from the bottom of the lower absorbing means is heated in a heat and mass transfer means to strip out its volatile components. A distillation vapor stream from the top of the heat and mass transfer means is cooled by a distillation vapor stream from the top of the upper absorbing means, thereby forming a condensed stream that is supplied as a top feed to the upper absorbing means.
摘要翻译：公开了一种用于紧凑加工组件从烃气流中回收乙烷，乙烯和较重烃组分的方法和装置。将气流冷却并分成第一和第二流。第一流进一步冷却，膨胀至较低压力，并作为两个吸收装置之间的进料供应。将第二流膨胀到较低压力并作为底部进料供给到下部吸收装置。来自下部吸收装置的底部的蒸馏液体流在热和质量传递装置中被加热以除去其挥发性组分。来自热和质量传递装置的顶部的蒸馏蒸汽流由上部吸收装置的顶部的蒸馏蒸气流冷却，从而形成作为顶部进料供应到上部吸收装置的冷凝流。

29. 发明申请

US20100251764A1 Hydrocarbon Gas Processing 有权
标题翻译：烃气处理
公开(公告)号：US20100251764A1
公开(公告)日：2010-10-07
申请号：US12717394
申请日：2010-03-04
申请人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
发明人： Andrew F. Johnke , W. Larry Lewis , John D. Wilkinson , Joe T. Lynch , Hank M. Hudson , Kyle T. Cuellar
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , C10G5/06 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/70 , F25J2205/04 , F25J2210/06 , F25J2240/02 , F25J2270/12 , F25J2270/60 , F25J2290/40 , F25J2290/42
摘要： A process and an apparatus are disclosed for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream in a compact processing assembly. The gas stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and is thereafter expanded to lower pressure and supplied as a feed between first and second absorbing means inside the processing assembly. The second stream is expanded to lower pressure and supplied as the bottom feed to the second absorbing means. A distillation vapor stream is collected from the upper region of the first absorbing means and directed into one or more heat exchange means inside the processing assembly to heat it while cooling the gas stream and the first stream. The heated distillation vapor stream is compressed to higher pressure and divided into a volatile residue gas fraction and a compressed recycle stream. The compressed recycle stream is cooled to condense substantially all of it by the distillation vapor stream in the one or more heat exchange means inside the processing assembly, and is thereafter expanded to lower pressure and supplied as top feed to the first absorbing means. A distillation liquid stream is collected from the lower region of the second absorbing means and directed into a heat and mass transfer means inside the processing assembly to heat it and strip out its volatile components while cooling the gas stream. The quantities and temperatures of the feeds to the first and second absorbing means are effective to maintain the temperature of the upper region of the first absorbing means at a temperature whereby the major portions of the desired components are recovered in the stripped distillation liquid stream.
摘要翻译：公开了用于从紧凑加工组件中的烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和装置。将气流冷却并分成第一和第二流。将第一流进一步冷却以基本上将其全部冷凝，然后将其膨胀至较低的压力，并作为进料在第一和第二吸收装置内部供给到处理组件内部。第二流膨胀到较低的压力，并作为底部进料供给到第二吸收装置。蒸馏蒸汽流从第一吸收装置的上部区域收集并且被引导到处理组件内的一个或多个热交换装置中，以在冷却气流和第一流的同时对其进行加热。将加热的蒸馏蒸气流压缩至较高压力并分成挥发性残余气体馏分和压缩的再循环流。将压缩的再循环料流冷却以通过加工组件内部的一个或多个热交换装置中的蒸馏蒸气流冷凝，然后膨胀至较低压力并作为顶部进料供应至第一吸收装置。从第二吸收装置的下部区域收集蒸馏液体物流，并将其导入加工组件内部的热和质量传递装置，以加热它并在冷却气流的同时剥离其挥发性成分。进料到第一和第二吸收装置的量和温度对于将第一吸收装置的上部区域的温度保持在所需组分的主要部分在汽提的蒸馏液体流中回收的温度是有效的。

30. 发明申请

US20080282731A1 Liquefied Natural Gas Processing 有权
标题翻译：液化天然气加工
公开(公告)号：US20080282731A1
公开(公告)日：2008-11-20
申请号：US12060362
申请日：2008-04-01
申请人： Kyle T. Cuellar , John D. Wilkinson , Hank M. Hudson
发明人： Kyle T. Cuellar , John D. Wilkinson , Hank M. Hudson
IPC分类号： F25J3/00 , C07C7/04
CPC分类号： F25J3/0233 , C10L3/10 , F25J3/0214 , F25J3/0242 , F25J2200/02 , F25J2200/74 , F25J2200/78 , F25J2205/02 , F25J2205/04 , F25J2230/08 , F25J2230/60 , F25J2240/02 , F25J2240/40
摘要： A process and apparatus for the recovery of heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is heated to vaporize at least part of it, then supplied to a fractionation column at a mid-column feed position. A vapor distillation stream is withdrawn from the fractionation column below the mid-column feed position and directed in heat exchange relation with the LNG feed stream, cooling the vapor distillation stream as it supplies at least part of the heating of the LNG feed stream. The vapor distillation stream is cooled sufficiently to condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation column as its top feed. The quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered in the bottom liquid product from the column.
摘要翻译：公开了一种用于从液化天然气（LNG）流中回收较重烃的方法和装置。加热LNG进料流至少部分蒸发，然后在中间柱进料位置供给分馏塔。蒸汽蒸馏物流从中间柱进料位置以下的分馏塔中排出，并与LNG进料物流以热交换的方式引导，在蒸气蒸馏流提供至少部分LNG进料流的加热时冷却。将蒸气蒸馏物流充分冷却至少部分冷凝，形成冷凝物流。冷凝流的至少一部分作为其顶部进料被引导至分馏塔。进料到塔的数量和温度有效地将塔顶温度维持在一个温度，从而使所需组分的主要部分在塔的底部液体产物中回收。

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