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    A METHOD TO PRODUCE LNG AT GAS PRESSURE LETDOWN STATIONS IN NATURAL GAS TRANSMISSION PIPELINE SYSTEMS
    1.
    发明申请
    A METHOD TO PRODUCE LNG AT GAS PRESSURE LETDOWN STATIONS IN NATURAL GAS TRANSMISSION PIPELINE SYSTEMS 审中-公开
    天然气输送管道系统中天然气压力站生产LNG的方法

    公开(公告)号：WO2014085927A1

    公开(公告)日：2014-06-12

    申请号：PCT/CA2013/050929

    申请日：2013-12-04

    Applicant: 1304342 ALBERTA LTD. ,  1304338 ALBERTA LTD.

    Inventor： MILLAR, MacKenzie ,  LOURENCO, Jose

    IPC: F25J3/06 ,  C10L1/04 ,  C10L3/06

    CPC classification number: F25J1/0022 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0201 ,  F25J1/0232 ,  F25J2210/06 ,  F25J2220/62 ,  F25J2220/64 ,  F25J2240/40

    Abstract: There is described a method to produce LNG at gas pressure letdown stations. A high pressure gas stream is pre-cooled, dewatered, and then divided into two streams: a diverted LNG production stream (LNG stream) and a gas to end users stream (User stream). Carbon dioxide is removed from the LNG stream and the LNG stream is compressed. The LNG stream is then precooled by passing through one or more heat exchangers. Hydrocarbon condensate is removed from the LNG steam by passing the LNG stream through a first Knock Out drum. The LNG stream is then depressured by passing through a JT valve to depressurize the gas vapour exiting the first Knock Out drum and discharge it into a second Knock Out drum where the LNG is captured.

    Abstract translation: 描述了在气体压力站产生LNG的方法。 高压气流被预冷却，脱水，然后分成两股：转向LNG生产流（LNG流）和气体到最终用户流（用户流）。 从LNG流中除去二氧化碳，并压缩LNG流。 然后，LNG流通过一个或多个热交换器而被预冷却。 通过将LNG流通过第一个敲出滚筒，从LNG蒸汽中除去碳氢化合物。 然后通过穿过JT阀来减压LNG流，以使离开第一敲出滚筒的气体蒸气减压，并将其排放到第二个敲出滚筒中，在此处捕获LNG。

    METHOD OF CONDITIONING NATURAL GAS IN PREPARATION FOR STORAGE
    4.
    发明申请
    METHOD OF CONDITIONING NATURAL GAS IN PREPARATION FOR STORAGE 审中-公开
    调节天然气储存准备的方法

    公开(公告)号：WO2007087713A1

    公开(公告)日：2007-08-09

    申请号：PCT/CA2007/000140

    申请日：2007-01-31

    Applicant: LOURENCO, Jose ,  MILLAR, MacKenzie

    Inventor： LOURENCO, Jose ,  MILLAR, MacKenzie

    IPC: F25J1/00 ,  F17D1/04

    CPC classification number: F25J1/0045 ,  F17D1/04 ,  F25J1/0022 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0201 ,  F25J1/0232 ,  F25J1/0254 ,  F25J2205/02 ,  F25J2210/06 ,  F25J2220/64 ,  F25J2235/60 ,  F25J2290/62 ,  Y10T137/0391

    Abstract: A method of conditioning natural gas in preparation for storage, involves taking an existing stream of continuously flowing natural gas flowing through a gas line (12) on its way to end users and diverting a portion of the stream of continuously flowing natural gas to a storage facility through a storage diversion line (22). The pressure of the natural gas is lowered, as is the temperature by the Joule-Thompson effect. The natural gas is passed in a single pass through a series of heat exchangers (18, 28, 30, 32) prior to resuming flow through the gas line (12) at the lowered pressure. The diverted natural gas is liquefied in preparation for storage by effecting a heat exchange with the natural gas.

    Abstract translation: 调节天然气准备储存的方法包括在流向终端用户的道路上流动通过气体管线（12）的连续流动的天然气流，并将一部分连续流动的天然气流转向储存器 设备通过存储分流线（22）。 天然气的压力也随着焦耳汤普森效应的降低而降低。 天然气在通过一系列热交换器（18,28,30,32）之前通过，然后在降低的压力下恢复流经气体管线（12）。 通过与天然气进行热交换，转移的天然气被液化以准备储存。

    INDUSTRIAL GAS PIPELINE LETDOWN LIQUEFACTION SYSTEM
    10.
    发明申请
    INDUSTRIAL GAS PIPELINE LETDOWN LIQUEFACTION SYSTEM 审中-公开
    工业气体管道液化系统

    公开(公告)号：WO00057118A1

    公开(公告)日：2000-09-28

    申请号：PCT/US1999/017379

    申请日：1999-08-02

    IPC: F25J1/00 ,  F25J1/02 ,  F25J3/04

    CPC classification number: F25J3/04254 ,  F25J1/0012 ,  F25J1/0015 ,  F25J1/0017 ,  F25J1/0022 ,  F25J1/0027 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0201 ,  F25J1/0221 ,  F25J1/0232 ,  F25J1/0234 ,  F25J1/0288 ,  F25J2205/02 ,  F25J2205/60 ,  F25J2210/40 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2210/60 ,  F25J2220/66 ,  F25J2230/20 ,  F25J2230/30 ,  F25J2230/60 ,  F25J2245/02 ,  F25J2270/06 ,  F25J2270/12 ,  F25J2270/14 ,  Y10S62/912 ,  Y10S62/913

    Abstract: A high pressure nitrogen pipeline, oxygen or plant air is diverted around a pressure letdown station to liquefy the gas or a portion of the gas for storage or air separation assist, with the remaining unused gaseous portion being returned to the pipeline downstream the letdown station. One or more heat exchangers and one or more expanders are used to cool down the gas and liquefy it. A generator or compressor may be coupled to the expanders employing companders for generating power or for further compression of the pipeline gas. In a further embodiment, natural gas is cooled to assist in liquefying the nitrogen by drying the natural gas and forming two streams wherein carbon dioxide is removed from a smaller stream which is applied to cascaded heat exchangers and the larger stream is expanded to further cool it. The two streams are applied to the heat exchangers for cooling and liquefying nitrogen gas or other merchant gas applied to the heat exchangers from a pipeline or other source. A portion of the nitrogen gas is tapped from the heat exchangers for expansion and the remaining portion cooled through the remaining heat exchangers with both portions applied to a separator. The separator vapor output is applied to the heat exchangers for cooling the nitrogen and the liquid gas is pumped to storage.

    Abstract translation: 高压氮气管道，氧气或植物空气在压力降低站周围转移，以液化气体或一部分气体用于储存或空气分离辅助，其余未使用的气体部分返回到排放站下游的管道。 使用一个或多个热交换器和一个或多个膨胀器来冷却气体并使其液化。 发电机或压缩机可以使用用于产生动力或用于管道气体的进一步压缩的压缩机而联接到膨胀器。 在另一个实施方案中，天然气被冷却以帮助通过干燥天然气并形成两个流来液化氮气，其中二氧化碳从施加到级联热交换器的较小流中除去，并且较大的流膨胀以进一步冷却 。 两个流被施加到热交换器，用于冷却和液化从管道或其它源施加到热交换器的氮气或其他商业气体。 从热交换器中抽出一部分氮气用于膨胀，其余部分通过剩余的热交换器冷却，两部分被施加到隔板上。 分离器蒸汽输出被施加到用于冷却氮气的热交换器，并且液体气体被泵送到存储器。

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