Method to Produce LNG at Gas Pressure Letdown Stations in Natural Gas Transmission Pipeline Systems
    2.
    发明申请
    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气压减压站生产液化天然气的方法

    公开(公告)号:US20150345858A1

    公开(公告)日:2015-12-03

    申请号:US14649858

    申请日:2013-12-04

    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
    3.
    发明授权
    Method of conditioning natural gas in preparation for storage 有权
    调节天然气准备储存的方法

    公开(公告)号:US08555671B2

    公开(公告)日:2013-10-15

    申请号:US12162988

    申请日:2007-01-31

    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。

    Building With Energy Recovery and Storage Systems
    4.
    发明申请
    Building With Energy Recovery and Storage Systems 审中-公开
    建筑与能量回收和存储系统

    公开(公告)号:US20120056482A1

    公开(公告)日:2012-03-08

    申请号:US13298446

    申请日:2011-11-17

    Abstract: A building energy recovery system having at least one wind drive mounted to the building structure proximate to the roof junction, a generator and an electrical output. The wind drive includes a radial flow wind turbine having a rotor, a rotatable shaft of the rotor, an open windward facing air intake duct, and a side facing air discharge opening disposed perpendicular to the rotatable shaft of the rotor. The intake duct is in communication with a wind blowing toward the front wall and the discharge opening is in communication with a wake region adjacent to the discharge opening and induced by a wind flowing behind the roof junction

    Abstract translation: 一种建筑物能量回收系统,其具有至少一个安装在靠近屋顶结合处的建筑物结构的风力驱动器,发电机和电气输出。 风力驱动器包括径向流风力涡轮机,其具有转子,转子的可旋转轴,敞开的面向风的进气管道和垂直于转子的可旋转轴设置的面向侧的排气口。 进气管与朝向前壁吹的风相通,排出口与邻近排放口的尾流区连通,并由在屋顶连接处后方的风引起

    METHOD AND SYSTEM FOR PERIODIC COOLING, STORING, AND HEATING WITH MULTIPLE REGENERATORS
    5.
    发明申请
    METHOD AND SYSTEM FOR PERIODIC COOLING, STORING, AND HEATING WITH MULTIPLE REGENERATORS 审中-公开
    定期冷却,储存和加热多种再生器的方法和系统

    公开(公告)号:US20110308276A1

    公开(公告)日:2011-12-22

    申请号:US12817664

    申请日:2010-06-17

    Abstract: Disclosed are a method and system involving pressurizing an atmospheric gas stream to form at least a compressed atmospheric gas stream, directing the compressed atmospheric gas stream to a first regenerator for cooling, pressurizing to above a second predetermined pressure to form at least a supercritical atmospheric gas stream, directing the supercritical atmospheric gas stream to a second regenerator for cooling, reducing pressure to form at least a liquefied atmospheric gas stream, selectively storing the liquefied atmospheric gas stream, pressurizing the liquefied atmospheric gas stream to form at least a pressurized liquefied atmospheric gas stream, heating the pressurized liquefied atmospheric gas stream in the second regenerator to form at least a heated stream, expanding the heated stream to form at least a medium pressure atmospheric gas stream, directing the medium pressure atmospheric gas stream to the first regenerator, and heating the medium pressure atmospheric gas stream in the first regenerator.

    Abstract translation: 公开了一种方法和系统,包括对大气气流进行加压以形成至少压缩的气体气流,将压缩的气体气流引导到第一再生器进行冷却,加压至高于第二预定压力以形成至少一个超临界气氛气体 将超临界大气气流引导到第二再生器进行冷却,降低压力以形成至少液化的大气气流,选择性地储存液化的大气气流,对液化的大气气流加压以形成至少加压的液化气氛气体 加热第二再生器中的加压液化大气气流以形成至少一个加热流,使加热的流膨胀,形成至少一个中压气氛气流,将中压气氛气流引导到第一再生器,以及加热 中压大气气流 m在第一个再生器。

    Liquefied natural gas and hydrocarbon gas processing
    6.
    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

    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。

    LNG production in cryogenic natural gas processing plants
    9.
    发明授权
    LNG production in cryogenic natural gas processing plants 失效
    低温天然气加工厂的液化天然气生产

    公开(公告)号:US06526777B1

    公开(公告)日:2003-03-04

    申请号:US09839907

    申请日:2001-04-20

    Abstract: A process for liquefying natural gas in conjunction with processing natural gas to recover natural gas liquids (NGL) is disclosed. In the process, the natural gas stream to be liquefied is taken from one of the streams in the NGL recovery plant and cooled under pressure to condense it. A distillation stream is withdrawn from the NGL recovery plant to provide some of the cooling required to condense the natural gas stream. The condensed natural gas stream is expanded to an intermediate pressure and supplied to a mid-column feed point on 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, and is routed to the NGL recovery plant so that these heavier hydrocarbons can be recovered in the NGL product. The overhead vapor from the distillation column 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: 公开了天然气液化天然气加工天然气回收天然气液体(NGL)的方法。 在此过程中,待液化的天然气流从NGL回收设备中的一条流中取出,并在压力下冷却以使其冷凝。 将蒸馏物流从NGL回收装置中取出以提供冷凝天然气流所需的一些冷却。 将冷凝的天然气流扩展到中间压力并供应到蒸馏塔上的中间塔进料点。 来自该蒸馏塔的底部产物优选包含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,并被送往NGL回收设备,以便可以在NGL产物中回收这些较重的烃。 来自蒸馏塔的塔顶蒸气被冷却并冷凝,并且将一部分冷凝流供应到蒸馏塔上的顶部进料点以用作回流。 冷凝流的第二部分膨胀到低压以形成液化的天然气流。

Patent Agency Ranking