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    Natural gas liquefaction
    2.
    发明申请
    Natural gas liquefaction 有权
    天然气液化

    公开(公告)号：US20050247078A1

    公开(公告)日：2005-11-10

    申请号：US10840072

    申请日：2004-05-04

    申请人： John Wilkinson ,  Joe Lynch ,  Hank Hudson ,  Kyle Cuellar

    发明人： John Wilkinson ,  Joe Lynch ,  Hank Hudson ,  Kyle Cuellar

    IPC分类号： F25J1/00 ,  F25J1/02 ,  F25J3/00 ,  F25J3/02

    CPC分类号： F25J1/0216 ,  F25J1/0022 ,  F25J1/0035 ,  F25J1/0045 ,  F25J1/0052 ,  F25J1/0057 ,  F25J1/0205 ,  F25J1/0214 ,  F25J1/0239 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J3/0247 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/30 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/78 ,  F25J2205/04 ,  F25J2230/08 ,  F25J2230/20 ,  F25J2230/60 ,  F25J2240/02 ,  F25J2240/30 ,  F25J2270/02 ,  F25J2270/12 ,  F25J2270/60 ,  F25J2270/66 ,  F25J2290/40

    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 and divided into first and second streams. The first stream is further cooled to condense substantially all of it, expanded to an intermediate pressure, and then supplied to a distillation column at a first mid-column feed position. The second stream is also expanded to intermediate pressure and is then supplied to the column at a second lower mid-column feed position. A distillation stream is withdrawn from the column below the feed point of the second stream and is cooled to condense at least a part of it, forming a reflux stream. At least a portion of the reflux stream is directed to the distillation column as its top feed. 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.

    摘要翻译： 公开了一种液化天然气与生产主要包含比甲烷重的烃的液体流的方法。 在此过程中，待液化的天然气流被部分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，膨胀至中间压力，然后在第一中间柱进料位置供给蒸馏塔。 第二个流还被扩展到中间压力，然后在第二个较低的中间列进料位置被供给到塔中。 蒸馏物流从第二料流进料点下方的塔中取出，冷却至少部分冷凝，形成回流。 至少一部分回流物流作为其顶部进料引导至蒸馏塔。 来自该蒸馏塔的底部产物优先含有大于甲烷重量的任何烃类，否则会降低液化天然气的纯度。 将来自蒸馏塔的残余气流压缩至更高的中间压力，在压力下冷却以冷凝，然后膨胀至低压以形成液化的天然气流。

    Liquefied Natural Gas Processing
    5.
    发明申请
    Liquefied Natural Gas Processing 有权
    液化天然气加工

    公开(公告)号：US20080000265A1

    公开(公告)日：2008-01-03

    申请号：US11749268

    申请日：2007-05-16

    申请人： Kyle Cuellar ,  John Wilkinson ,  Hank Hudson

    发明人： Kyle Cuellar ,  John Wilkinson ,  Hank Hudson

    IPC分类号： F17C9/04

    CPC分类号： F25J3/0233 ,  F25J3/0214 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/76 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2230/08 ,  F25J2230/60 ,  F25J2235/60 ,  F25J2240/02

    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 vaporized 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 vaporized portion of the LNG feed stream is separated into vapor and liquid streams which are thereafter supplied to the column at lower mid-column feed positions. 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的蒸馏物流进行热交换，由此这部分LNG进料流部分蒸发，蒸馏物流完全冷凝。 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。 LNG进料流的部分蒸发部分被分离成蒸汽和液体物流，然后在较低的中间塔进料位置将其送入塔中。 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。

    Hydrocarbon gas processing
    6.
    发明申请
    Hydrocarbon gas processing 有权
    烃类气体加工

    公开(公告)号：US20060032269A1

    公开(公告)日：2006-02-16

    申请号：US11201358

    申请日：2005-08-10

    申请人： Kyle Cuellar ,  John Wilkinson ,  Joe Lynch ,  Hank Hudson

    发明人： Kyle Cuellar ,  John Wilkinson ,  Joe Lynch ,  Hank Hudson

    IPC分类号： F25J3/00

    CPC分类号： F25J3/0233 ,  F25J3/0209 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/78 ,  F25J2205/02 ,  F25J2205/04 ,  F25J2240/02 ,  F25J2245/02 ,  F25J2270/12 ,  F25J2270/60 ,  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 distillation stream is withdrawn from the column below the feed point of the second stream and is then directed into heat exchange relation with the tower overhead vapor stream to cool the 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。 蒸馏物流从第二料流的进料点下方的塔中取出，然后与塔顶塔顶蒸气流导热至热交换关系，以冷却蒸馏流并冷凝其至少一部分，形成冷凝流。 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。

    Liquefied natural gas processing
    7.
    发明申请
    Liquefied natural gas processing 有权
    液化天然气加工

    公开(公告)号：US20060000234A1

    公开(公告)日：2006-01-05

    申请号：US11144728

    申请日：2005-06-03

    申请人： Kyle Cuellar ,  John Wilkinson ,  Hank Hudson

    发明人： Kyle Cuellar ,  John Wilkinson ,  Hank Hudson

    IPC分类号： F25J1/00 ,  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。

    Liquefied natural gas processing
    8.
    发明申请
    Liquefied natural gas processing 有权
    液化天然气加工

    公开(公告)号：US20050066686A1

    公开(公告)日：2005-03-31

    申请号：US10675785

    申请日：2003-09-30

    申请人： John Wilkinson ,  Hank Hudson

    发明人： John Wilkinson ,  Hank Hudson

    IPC分类号： F25J3/02 ,  F25J3/00

    CPC分类号： F25J3/0214 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/76 ,  F25J2200/80 ,  F25J2210/06 ,  F25J2230/08 ,  F25J2230/60 ,  F25J2235/60 ,  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 directed in heat exchanger relation with a warmer distillation stream rising from the fractionation stages of a distillation column, whereby the LNG feed stream is partially heated and the distillation stream is partially condensed. The partially condensed distillation stream is separated to provide volatile residue gas and a reflux stream, whereupon the reflux stream is supplied to the column at a top column feed position. A portion of the partially heated LNG feed stream is supplied to the column at an upper mid-column feed point, and the remaining portion 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进料流与来自蒸馏塔的分馏级的较高蒸馏流以热交换器关系引导，由此LNG进料流被部分加热并且蒸馏流部分冷凝。 分离部分冷凝的蒸馏物流以提供挥发性残余气体和回流物流，然后在顶部塔进料位置将回流物流供应到塔中。 部分加热的LNG进料流的一部分在上中间柱进料点处供应到塔，并且剩余部分被进一步加热以部分或完全蒸发，然后在较低的中间塔进料位置 。 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。