Process for liquefying a hydrocarbon-rich stream
    2.
    发明授权
    Process for liquefying a hydrocarbon-rich stream 失效
    液化富烃流的方法

    公开(公告)号:US06334334B1

    公开(公告)日:2002-01-01

    申请号:US09629089

    申请日:2000-07-31

    IPC分类号: F25J100

    摘要: In the liquefaction of a hydrocarbon by indirect heat exchange with the refrigerant mixture of a refrigerant mixture cycle, the refrigerant mixture being compressed in multiple stages, the compressed refrigerant mixture (23) is at least partially condensed (E4) downstream of the penultimate compressor stage and is fractionated (D4) into a higher-boiling liquid fraction (26) and a lower-boiling gas fraction (24). The lower-boiling gas fraction (24) is compressed to the final pressure, partially condensed (E5) and fractionated (D5) into a lower-boiling gas fraction (10) and a higher-boiling liquid fraction (27). The higher-boiling liquid fraction (27) is added to the partially condensed refrigerant mixture stream (23), and the gas fraction (10) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (26) forms the higher boiling refrigerant mixture fraction of the refrigerant mixture cycle. Alternatively, the compressed refrigerant mixture (20, 31, 34) can be partially condensed (E3, E4, E5) after each compressor stage and fractionated in each case into a lower-boiling gas fraction (21, 32, 10) and a higher-boiling liquid fraction (30, 33, 35). Only the gas fraction (21, 32) from the partial condensation (E3, E4) in each case is further compressed and the liquid fractions (33, 35) from the second fractionation (D4, D5) are added to the partially condensed stream (20) from the first compressor stage upstream of its fractionation (D3). The gas fraction (10) from the final fractionation (D5) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (30) from the first fractionation (D3) forms the higher-boiling refrigerant mixture fraction of the refrigerant mixture cycle.

    摘要翻译: 在通过与制冷剂混合循环的制冷剂混合物间接热交换的烃液化中,制冷剂混合物被多级压缩,压缩的制冷剂混合物(23)在倒数第二个压缩机级的下游至少部分地冷凝(E4) 并将其分馏成高沸点液体馏分(26)和低沸点气体馏分(24)。 将低沸点气体馏分(24)压缩至最终压力,部分冷凝(E5)并分馏(D5)成低沸点气体馏分(10)和较高沸点液体馏分(27)。 将较高沸点的液体馏分(27)加入到部分冷凝的制冷剂混合物流(23)中,并且气体馏分(10)形成低沸点制冷剂混合物馏分,液体馏分(26)形成较高沸点的制冷剂混合物 制冷剂混合循环的分数。 或者,压缩的制冷剂混合物(20,31,34)可以在每个压缩机级之后被部分冷凝(E3,E4,E5),并且在每种情况下分馏成低沸点气体馏分(21,32,10)和更高的 沸腾的液体馏分(30,33,35)。 在每种情况下,只有来自部分冷凝(E3,E4)的气体馏分(21,32)被进一步压缩,并且将来自第二分馏(D4,D5)的液体馏分(33,35)加入到部分冷凝的流中 20)从其分馏(D3)上游的第一压缩机级。 来自最终分馏(D5)的气体馏分(10)形成低沸点制冷剂混合物馏分,来自第一馏分(D3)的液体馏分(30)形成制冷剂混合循环的较高沸点的制冷剂混合物馏分。

    Method and system for offshore production of liquefied natural gas
    4.
    发明授权
    Method and system for offshore production of liquefied natural gas 失效
    液化天然气近海生产方法和系统

    公开(公告)号:US6003603A

    公开(公告)日:1999-12-21

    申请号:US849346

    申请日:1997-08-11

    摘要: A method and a system for offshore production of liquefied natural gas, wherein natural gas is supplied from an underground source to a field installation for gas treatment. The gas is transferred in compressed form from the field installation to an LNG tanker. The transfer takes place via a pipeline surrounded by sea water. The compressed gas is supplied to a conversion plant which is provided on the LNG tanker and is arranged to convert at least a part of the gas to liquefied form, and the liquified gas is transferred to storage tanks on board the tanker. When the storage tanks on the LNG tanker are filled up, the pipeline is disconnected from the LNG tanker and connected to another, similar tanker. The pipeline is permanently connected to a submerged buoy which is arranged for introduction and releasable securement in a submerged downwardly open receiving space in the tanker, and which is provided with a swivel unit for transfer of gas under a high pressure.

    摘要翻译: PCT No.PCT / NO95 / 00227 Sec。 371日期1997年8月11日 102(e)日期1997年8月11日PCT提交1995年12月8日PCT公布。 公开号WO96 / 17777 日期1996年6月13日一种用于离岸生产液化天然气的方法和系统,其中将天然气从地下源供应到用于气体处理的现场设备。 气体以压缩形式从现场安装转移到LNG罐车。 转运通过海水围拢的管道进行。 将压缩气体供给到设置在LNG罐车上的转炉装置,并且将至少一部分气体转化为液化形式,将液化气体转移到油罐车上的储罐中。 当液化天然气罐车上的储罐被填满时,管道与LNG罐车断开连接,并连接到另一个类似的油罐车。 该管道永久地连接到浸没式浮标,其被设置成用于在油罐车中的浸没的向下开放的接收空间中引入和释放固定,并且设置有用于在高压下传送气体的旋转单元。

    Method and system for offshore production of liquefied natural gas
    5.
    发明授权
    Method and system for offshore production of liquefied natural gas 失效
    液化天然气近海生产方法和系统

    公开(公告)号:US5878814A

    公开(公告)日:1999-03-09

    申请号:US849349

    申请日:1997-08-20

    摘要: A method and a system for offshore production of liquefied natural gas, wherein natural gas is supplied from an underground source (4) to a subsea production plant (1). The gas is transferred under a high pressure directly from the production plant (1) to an LNG tanker (6), the transfer taking place through a pipeline (5) surrounded by sea water and causing the temperature of the high pressure gas to be lowered to a desired low temperature. This gas is supplied to a conversion plant (12) provided on the LNG tanker (16) and arranged for converting at least a part of the gas to liquid form, and the liquefied gas is transferred to storage tanks (17) on board the vessel (6). When the storage tanks (17) on the LNG tanker (6) are filled up, the pipeline is disconnected from the LNG tanker and connected to another similar tanker, the pipeline being permanently connected to a submerged buoy (8) which is arranged for introduction and releasable securement in a submerged downwardly open receiving space (11) in the tanker (6), and which is provided with a swivel unit for transfer of gas under a high pressure.

    摘要翻译: PCT No.PCT / NO95 / 00228 Sec。 371日期1997年8月20日 102(e)日期1997年8月20日PCT 1995年12月8日PCT PCT。 WO96 / 17766 PCT公开号 日期1996年6月13日一种用于离岸生产液化天然气的方法和系统,其中天然气从地下源(4)供应到海底生产厂(1)。 气体在高压下直接从生产设备(1)转移到LNG罐车(6),通过由海水包围的管道(5)进行转运,并使高压气体的温度降低 达到所需的低温。 该气体被供应到设置在LNG罐车(16)上的转炉设备(12),并被设置成将至少一部分气体转化为液态,并将液化气体转移到船上的储罐(17) (6)。 当液化天然气罐车(6)上的储罐(17)被填满时,管道与LNG罐车断开连接并连接到另一个类似的油罐车,该管道永久地连接到一个被设置用于引入的淹没浮标(8) 并且在油罐(6)中的浸没的向下开放的容纳空间(11)中可释放地固定,并且设有用于在高压下传送气体的旋转单元。

    SUBSEA HEAT EXCHANGER AND METHOD FOR TEMPERATURE CONTROL
    7.
    发明申请
    SUBSEA HEAT EXCHANGER AND METHOD FOR TEMPERATURE CONTROL 审中-公开
    SUBSEA热交换器和温度控制方法

    公开(公告)号:US20140246166A1

    公开(公告)日:2014-09-04

    申请号:US14128582

    申请日:2011-07-01

    IPC分类号: F24J3/08

    摘要: The invention concerns a subsea heat exchanger for cooling or heating a hydrocarbon-containing fluid, said heat exchanger comprising: a convection section enclosed by a shell or enclosure comprising: one or more heat exchanging fluid inlet(s) and outlet(s); one or more hydrocarbon-containing fluid inlet(s) and outlet(s); and one or more fluid carrying convection tube(s) adapted for heat transfer between the hydrocarbon-containing fluid on the inside of the tube(s) and a surrounding heat exchanging fluid on the opposite side of the tube(s), wherein the heat exchanger is provided with one or more flow regulating device(s) for controlling the hydrocarbon-containing fluid outlet temperature, wherein the heat exchanging fluid circulates in a closed circuit for heat transfer both with said hydrocarbon-containing fluid and with surrounding sea water on the outside of the enclosure. The invention also concerns a method for subsea cooling or heating of a hydrocarbon containing fluid.

    摘要翻译: 本发明涉及一种用于冷却或加热含烃流体的海底热交换器,所述热交换器包括:由壳体或外壳封闭的对流段,包括:一个或多个热交换流体入口和出口; 一个或多个含烃流体入口和出口; 以及适于在所述管的内侧上的含烃流体与所述管的相对侧上的周围热交换流体之间的热传递的一个或多个流体承载对流管,其中所述热量 交换器设置有用于控制含烃流体出口温度的一个或多个流量调节装置,其中热交换流体在闭合回路中循环,以便与所述含烃流体和周围的海水 在外壳外面。 本发明还涉及一种用于海底冷却或加热含烃流体的方法。