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    Liquefied natural gas and hydrocarbon gas processing
    2.
    发明申请
    Liquefied natural gas and hydrocarbon gas processing 有权
    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

    Applicant: John D. Wilkinson ,  Hank M. Hudson ,  Kyle T. Cuellar

    Inventor： John D. Wilkinson ,  Hank M. Hudson ,  Kyle T. Cuellar

    IPC: F25J3/00

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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。

    Ethylene Expansion for Low Temperature Refrigeration in Polyethylene Vent Recovery
    4.
    发明申请
    Ethylene Expansion for Low Temperature Refrigeration in Polyethylene Vent Recovery 有权
    聚乙烯排气回收中低温制冷的乙烯膨胀

    公开(公告)号：US20130125581A1

    公开(公告)日：2013-05-23

    申请号：US13808632

    申请日：2011-07-07

    Applicant: Randall L. Force ,  Donald A. Fischer

    Inventor： Randall L. Force ,  Donald A. Fischer

    IPC: F25J3/08

    CPC classification number: F25J3/08 ,  C08F6/001 ,  C08F6/005 ,  F25J3/062 ,  F25J3/064 ,  F25J3/066 ,  F25J3/0685 ,  F25J2210/12 ,  F25J2215/58 ,  F25J2260/10 ,  F25J2270/14 ,  C08L23/00

    Abstract: Provided are processes and systems for recovering hydrocarbons in a vent stream from a polymerization process. The methods and systems may include the recovery of an olefin monomer from a polymerization vent gas using ethylene refrigeration to condense and recover the olefin monomers from the vent gas. In some embodiments, the methods and systems may also include compression and condensation of polymerization vent gas, recompression of ethylene refrigerant, and use of an expander compressor turbine device for ethylene refrigeration.

    Abstract translation: 提供了用于从聚合过程中回收排出物流中的烃的方法和系统。 所述方法和系统可以包括使用乙烯制冷从聚合排气中回收烯烃单体以冷凝和从排气中回收烯烃单体。 在一些实施方案中，所述方法和系统还可以包括聚合排气的压缩和冷凝，乙烯制冷剂的再压缩，以及使用用于乙烯制冷的膨胀机压缩机涡轮装置。

    METHOD TO PRODUCE NATURAL GAS LIQUIDS (NGL'S) AT GAS PRESSURE REDUCTION STATIONS
    5.
    发明申请
    METHOD TO PRODUCE NATURAL GAS LIQUIDS (NGL'S) AT GAS PRESSURE REDUCTION STATIONS 有权
    在天然气减压站生产天然气液体（NGL）的方法

    公开(公告)号：US20090282863A1

    公开(公告)日：2009-11-19

    申请号：US12121486

    申请日：2008-05-15

    Applicant: Jose Lourenco ,  MacKenzie Millar

    Inventor： Jose Lourenco ,  MacKenzie Millar

    IPC: F25J3/00

    CPC classification number: F25J3/061 ,  C10L3/10 ,  F25J3/0635 ,  F25J3/064 ,  F25J2240/02 ,  F25J2260/02 ,  F25J2260/10

    Abstract: A method to recover NGL's at gas Pressure Reducing Stations. A first step involve providing at least one heat exchanger having a flow path for passage of high pressure natural gas with a counter current depressurized lean cold gas. A second step involves passing the high pressure natural gas stream in a counter current flow with the lean cold gas and cooling it before de-pressurization. A third step involves the expansion of the high pressure cooled gas in a gas expander. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure and cold gas enters a separator where NGL's are recovered. This process results in the recovery NGL's, electricity and the displacement of a slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.

    Abstract translation: 在气体减压站恢复NGL的方法。 第一步骤涉及提供至少一个热交换器，其具有用于通过逆流减压的贫冷气体的高压天然气的通路。 第二步涉及将高压天然气流与贫冷气体逆流流动并在减压之前冷却。 第三步涉及在气体膨胀机中膨胀高压冷却气体。 气体的膨胀产生轴功，发电机转换为电力，膨胀的低压和冷气进入回收NGL的分离器。 这个过程导致NGL的电力恢复，以及目前用于在减压站预热气体的自然滑流的位移。

    METHOD TO PRODUCE PLNG AND CCNG AT STRADDLE PLANTS
    6.
    发明申请
    METHOD TO PRODUCE PLNG AND CCNG AT STRADDLE PLANTS 审中-公开
    生产PLNG和CCNG在STRADDLE PLANTS的方法

    公开(公告)号：US20160238314A1

    公开(公告)日：2016-08-18

    申请号：US15041884

    申请日：2016-02-11

    Applicant: 1304342 Alberta Ltd. ,  1304338 Alberta Ltd.

    Inventor： MacKenzie Millar ,  Jose Lourenco

    IPC: F25J3/02

    CPC classification number: F25J3/0233 ,  F25J3/0209 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/70 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2215/04 ,  F25J2240/02 ,  F25J2240/30 ,  F25J2260/10

    Abstract: There is provided a method to produce PLNG and CCNG at Straddle Plants. In contrast to present practice at Straddle Plants, there is added a slipstream of high pressure, pre-treated, pre-cooled natural gas stream to feed a new PLNG and or CCNG production section. This slipstream is further cooled in a heat exchanger by a counter-current vapour fraction of the expanded gas before entering an expander apparatus. The cooled gas is expanded into a separator. The cold vapour fraction from the separator is routed and expanded to the Straddle Plant fractionator. The produced PLNG is routed to storage.

    Abstract translation: 提供了在跨境植物生产PLNG和CCNG的方法。 与Straddle工厂的现行做法相比，增加了高压，预处理的预冷天然气流的滑流，以供应新的PLNG和/或CCNG生产部分。 在进入膨胀机装置之前，该热流通过膨胀气体的逆流蒸汽馏分在热交换器中进一步冷却。 冷却的气体膨胀成分离器。 来自分离器的冷蒸汽馏分被路由并扩展到Straddle Plant分馏器。 生成的PLNG路由到存储。

    Liquefied natural gas production
    7.
    发明授权
    Liquefied natural gas production 有权
    液化天然气生产

    公开(公告)号：US08584488B2

    公开(公告)日：2013-11-19

    申请号：US12479061

    申请日：2009-06-05

    Applicant: John D. Wilkinson ,  Hank M. Hudson ,  Kyle T. Cuellar

    Inventor： John D. Wilkinson ,  Hank M. Hudson ,  Kyle T. Cuellar

    IPC: F25J3/00

    CPC classification number: 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

    Abstract: 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.

    Abstract translation: 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塔进料点; 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。

    Method to produce natural gas liquids NGLs at gas Pressure Reduction Stations
    10.
    发明授权
    Method to produce natural gas liquids NGLs at gas Pressure Reduction Stations 有权
    在气体减压站生产天然气液体NGL的方法

    公开(公告)号：US08640494B2

    公开(公告)日：2014-02-04

    申请号：US12121486

    申请日：2008-05-15

    Applicant: Jose Lourenco ,  MacKenzie Millar

    Inventor： Jose Lourenco ,  MacKenzie Millar

    IPC: F25J3/00 ,  F25J1/00

    CPC classification number: F25J3/061 ,  C10L3/10 ,  F25J3/0635 ,  F25J3/064 ,  F25J2240/02 ,  F25J2260/02 ,  F25J2260/10

    Abstract: A method to recover NGL's at gas Pressure Reducing Stations. A first step involve providing at least one heat exchanger having a flow path for passage of high pressure natural gas with a counter current depressurized lean cold gas. A second step involves passing the high pressure natural gas stream in a counter current flow with the lean cold gas and cooling it before de-pressurization. A third step involves the expansion of the high pressure cooled gas in a gas expander. The expansion of the gas generates shaft work which is converted into electrical power by the power generator and the expanded low pressure and cold gas enters a separator where NGL's are recovered. This process results in the recovery NGL's, electricity and the displacement of a slipstream of natural that is presently used to pre-heat gas at Pressure Reduction Stations.

    Abstract translation: 在气体减压站恢复NGL的方法。 第一步骤涉及提供至少一个热交换器，其具有用于通过逆流减压的贫冷气体的高压天然气的通路。 第二步涉及将高压天然气流与贫冷气体逆流流动并在减压之前冷却。 第三步涉及在气体膨胀机中膨胀高压冷却气体。 气体的膨胀产生轴功，发电机转换为电力，膨胀的低压和冷气进入回收NGL的分离器。 这个过程导致NGL的电力恢复，以及目前用于在减压站预热气体的自然滑流的位移。

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