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公开(公告)号：US20110067442A1
公开(公告)日：2011-03-24
申请号：US12869007
申请日：2010-08-26
IPC分类号： F25J3/08
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/30 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2200/90 , F25J2200/92 , F25J2200/94 , F25J2205/04 , F25J2210/06 , F25J2210/60 , F25J2215/60 , F25J2230/08 , F25J2235/60 , F25J2240/02 , F25J2240/40 , F25J2270/02 , F25J2270/12 , F25J2290/12 , F25J2290/40
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. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and divided into first and second portions. The first and second portions are expanded to the fractionation tower pressure and supplied to the fractionation tower at upper mid-column feed positions, with the expanded second portion being heated before it enters the tower. The second stream is expanded to the tower pressure and supplied to the column at a mid-column feed position. A distillation vapor stream is withdrawn from the column above the feed point of the second stream, combined with a portion of the tower overhead vapor stream, compressed to higher pressure, and directed into heat exchange relation with the remaining tower overhead vapor stream and the expanded second portion to cool the compressed combined vapor stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is expanded to the tower pressure and 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： 公开了一种用于从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和装置。 将流冷却并分成第一和第二流。 第一流进一步冷却以基本上将其全部冷凝并分成第一和第二部分。 将第一和第二部分扩展到分馏塔压力，并在上部中间塔进料位置处供应到分馏塔，其中扩展的第二部分在其进入塔之前被加热。 将第二流扩展到塔压力，并在中间列进料位置供给塔。 将蒸馏蒸气物流从第二物流进料点上方的塔抽出，与一部分塔顶塔顶蒸汽流合并，压缩至更高的压力，并导向与剩余的塔顶塔顶蒸气流和扩展的塔顶蒸气流的热交换关系 第二部分以冷却压缩的组合蒸气流并冷凝其至少一部分，形成冷凝流。 冷凝物流的至少一部分膨胀至塔压，并作为顶部进料引导至分馏塔。 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。
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公开(公告)号：US20090100862A1
公开(公告)日：2009-04-23
申请号：US12206230
申请日：2008-09-08
IPC分类号： F25J3/00
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。
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公开(公告)号：US20080190136A1
公开(公告)日：2008-08-14
申请号：US11971491
申请日：2008-01-09
IPC分类号： F25J3/00
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/30 , F25J2200/76 , F25J2205/04 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2290/40
摘要： A process and apparatus 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 pressure of a fractionation tower 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 distillation vapor stream is withdrawn from the column below the feed point of the first stream and compressed to an intermediate pressure, and is then directed into heat exchange relation with the tower overhead vapor stream to cool the distillation stream and condense substantially all of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation tower at a third mid-column feed position located above the feed point of the first stream. A recycle stream is withdrawn from the tower overhead after it has been warmed and compressed. The compressed recycle stream is cooled sufficiently to substantially condense it, and is then expanded to the pressure of the fractionation tower and supplied to the tower at a top column feed position. 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： 公开了一种用于从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和设备。 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的压力，并以第一中间塔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。 将蒸馏蒸气物流从第一物流的进料点下方的塔中取出并压缩至中间压力，然后与塔顶塔顶蒸气流导热，以冷却蒸馏流并基本上将其冷凝， 形成冷凝流。 冷凝流的至少一部分在位于第一流的进料点上方的第三中柱进料位置处被引导至分馏塔。 在塔顶被加热和压缩之后，再循环流从塔架塔架中取出。 将压缩的再循环料流充分冷却以使其基本冷凝，然后膨胀至分馏塔的压力，并以顶部塔进料位置供应至塔。 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。
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公开(公告)号：US07216507B2
公开(公告)日：2007-05-15
申请号：US11144728
申请日：2005-06-03
IPC分类号： F25J3/00
CPC分类号： F25J3/0238 , F25J3/0214 , F25J3/0233 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/70 , F25J2200/72 , F25J2200/76 , F25J2205/04 , F25J2210/06 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2245/02
摘要： A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is divided into two portions. The first portion is supplied to a fractionation column at an upper mid-column feed point. The second portion is directed in heat exchange relation with a warmer distillation stream rising from the fractionation stages of the column, whereby this portion of the LNG feed stream is partially heated and the distillation stream is totally condensed. The condensed distillation stream is divided into a “lean” LNG product stream and a reflux stream, whereupon the reflux stream is supplied to the column at a top column feed position. The partially heated portion of the LNG feed stream is heated further to partially or totally vaporize it and thereafter supplied to the column at a lower mid-column feed position. 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）流中回收乙烷，乙烯，丙烷，丙烯和较重烃的方法和装置。 LNG进料流分为两部分。 将第一部分供应到上中间列进料点的分馏塔。 第二部分与从塔的分馏级上升的较热蒸馏物流进行热交换，由此将部分加热LNG进料物流并使蒸馏物完全冷凝。 冷凝的蒸馏物流被分成“贫”LNG产物流和回流物流，于是在顶塔进料位置将回流流供给塔。 将LNG进料流的部分加热部分进一步加热以使其部分或全部蒸发，然后在较低的中间塔进料位置供给塔。 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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公开(公告)号：US07010937B2
公开(公告)日：2006-03-14
申请号：US10823248
申请日：2004-04-13
CPC分类号： F25J1/0205 , F25J1/0022 , F25J1/0042 , F25J1/0052 , F25J1/0057 , F25J1/0214 , F25J1/0216 , F25J1/0239 , F25J1/0241 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J3/0247 , F25J2200/02 , F25J2200/04 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2205/04 , F25J2230/08 , F25J2230/60 , F25J2235/60 , F25J2240/02 , F25J2240/30 , F25J2240/40 , F25J2245/02 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2270/66 , F25J2290/40 , F25J2290/62
摘要： A process for liquefying natural gas in conjunction with producing a liquid stream containing predominantly hydrocarbons heavier than methane is disclosed. In the process, the natural gas stream to be liquefied is partially cooled, expanded to an intermediate pressure, and supplied to a distillation column. 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. The residual gas stream from the distillation column is compressed to a higher intermediate pressure, cooled under pressure to condense it, and then expanded to low pressure to form the liquefied natural gas stream.
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公开(公告)号：US06915662B2
公开(公告)日：2005-07-12
申请号：US10003453
申请日：2001-10-26
CPC分类号： C10G70/04 , C07C7/005 , C10G5/06 , F25J3/0209 , F25J3/0219 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/70 , F25J2200/74 , F25J2200/90 , F25J2205/04 , F25J2210/12 , F25J2220/66 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2270/02 , F25J2290/40 , Y02C10/12
摘要： A process for the recovery of ethane, ethylene, propane, propylene and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. In recent years, the preferred method of separating a hydrocarbon gas stream generally includes supplying at least portions of the gas stream to a fractionation tower having at least one reboiler, and often one or more side reboilers, to supply heat to the column by withdrawing and heating some of the tower liquids to produce stripping vapors that separate the more volatile components from the desired components. The reboiler and side reboilers (if any) are typically integrated into the feed stream cooling scheme to provide at least a portion of the refrigeration needed to condense the desired components for subsequent fractionation in the distillation column. In the process disclosed, the tower reboiling scheme is modified to use one or more tower liquid distillation streams from a point higher in the column than is used in the conventional reboiling scheme, providing colder stream(s) for the reboiler(s) that allow more effective cooling of the feed streams and thereby improve the efficiency with which the desired components are recovered. In addition, the tower liquid streams withdrawn from a higher point in the column contain larger quantities of the more volatile components, which when vaporized provide better stripping of undesirable components like carbon dioxide without reducing the recovery of the desired components. The heated distillation stream is returned to a lower point on the fractionation tower that is separated from the withdrawal point by at least one theoretical stage.
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。 近年来，分离烃气流的优选方法通常包括将气流的至少一部分供应至具有至少一个再沸器的分馏塔，并且通常是一个或多个侧再沸器，以通过抽出和 加热一些塔式液体以产生汽提蒸汽，其将更易挥发的组分与期望的组分分离。 再沸器和侧面再沸器（如果有的话）通常集成到进料流冷却方案中，以提供冷凝所需组分所需的至少一部分制冷剂用于随后在蒸馏塔中分馏。 在所公开的方法中，塔式再沸腾方案被修改为使用一种或多种塔式液体蒸馏物流，其比在常规再沸腾方案中使用的塔中高一点，为再沸器提供较冷的流，其允许 更有效地冷却进料流，从而提高回收所需组分的效率。 此外，从柱中较高点排出的塔液流含有较大量的挥发性较高的组分，当汽化时，会提供更好的汽提不需要的组分如二氧化碳，而不会降低所需组分的回收率。 加热的蒸馏物流返回到分离塔上的一个较低点，其从提取点离开至少一个理论阶段。
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公开(公告)号：US5890378A
公开(公告)日：1999-04-06
申请号：US52845
申请日：1998-03-31
CPC分类号： C10L3/06 , C10G5/06 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0242 , F25J2200/02 , F25J2200/04 , F25J2200/70 , F25J2200/78 , F25J2205/02 , F25J2205/04 , F25J2210/06 , F25J2240/02 , F25J2270/02 , F25J2270/12 , F25J2270/60 , F25J2280/02 , F25J2290/40 , F25J2290/80
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 divided into first and second streams, and the second stream is cooled and expanded to a lower pressure and supplied to a contacting device. The first stream is cooled to condense substantially all of it, expanded to the lower pressure, and then used to cool a warmer distillation stream from a distillation column to at least partially condense the distillation stream. At least a portion of the partially condensed distillation stream is directed to the contacting device to intimately contact the expanded second stream, the resulting vapors and liquids are separated from the contacting device, and these liquids are supplied to the distillation column. The quantities and temperatures of the feeds to the contacting device and the distillation column are effective to maintain the overhead temperatures of the contacting device and the distillation column at temperatures 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。 将该流分成第一和第二流，并将第二流冷却并膨胀至较低压力并供应至接触装置。 将第一流冷却至基本上将其全部冷凝，膨胀至较低的压力，然后用于冷却来自蒸馏塔的较热蒸馏物流至少部分冷凝蒸馏物流。 部分冷凝的蒸馏物流的至少一部分被引导到接触装置以与膨胀的第二物流紧密接触，所得到的蒸气和液体与接触装置分离，并将这些液体供应到蒸馏塔。 进料到接触装置和蒸馏塔的数量和温度有效地将接触装置和蒸馏塔的塔顶温度保持在温度，从而回收所需组分的主要部分。
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公开(公告)号：US09939195B2
公开(公告)日：2018-04-10
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： F25J3/02
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.
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公开(公告)号：US09869510B2
公开(公告)日：2018-01-16
申请号：US12060362
申请日：2008-04-01
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.
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60.发明授权Hydrocarbon gas processing featuring a compressed reflux stream formed by combining a portion of column residue gas with a distillation vapor stream withdrawn from the side of the column 有权烃气处理，其特征在于通过将塔残留气体的一部分与从塔侧排出的蒸馏蒸气流组合而形成的压缩回流公开(公告)号：US09476639B2
公开(公告)日：2016-10-25
申请号：US12869007
申请日：2010-08-26
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J2200/02 , F25J2200/30 , F25J2200/74 , F25J2200/76 , F25J2200/78 , F25J2200/90 , F25J2200/92 , F25J2200/94 , F25J2205/04 , F25J2210/06 , F25J2210/60 , F25J2215/60 , F25J2230/08 , F25J2235/60 , F25J2240/02 , F25J2240/40 , F25J2270/02 , F25J2270/12 , F25J2290/12 , F25J2290/40
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. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and divided into first and second portions. The first and second portions are expanded to the fractionation tower pressure and supplied to the fractionation tower at upper mid-column feed positions, with the expanded second portion being heated before it enters the tower. The second stream is expanded to the tower pressure and supplied to the column at a mid-column feed position. A distillation vapor stream is withdrawn from the column above the feed point of the second stream, combined with a portion of the tower overhead vapor stream, compressed to higher pressure, and directed into heat exchange relation with the remaining tower overhead vapor stream and the expanded second portion to cool the compressed combined vapor stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is expanded to the tower pressure and 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： 公开了一种用于从烃气流中回收乙烷，乙烯，丙烷，丙烯和较重烃组分的方法和装置。 将流冷却并分成第一和第二流。 第一流进一步冷却以基本上将其全部冷凝并分成第一和第二部分。 将第一和第二部分扩展到分馏塔压力，并在上部中间塔进料位置处供应到分馏塔，其中扩展的第二部分在其进入塔之前被加热。 将第二流扩展到塔压力，并在中间列进料位置供给塔。 将蒸馏蒸气物流从第二物流进料点上方的塔抽出，与一部分塔顶塔顶蒸汽流合并，压缩至更高的压力，并导向与剩余的塔顶塔顶蒸气流和扩展的塔顶蒸气流的热交换关系 第二部分以冷却压缩的组合蒸气流并冷凝其至少一部分，形成冷凝流。 冷凝物流的至少一部分膨胀至塔压，并作为顶部进料引导至分馏塔。 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。
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