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    Integrated air separation process and apparatus
    74.
    发明授权
    Integrated air separation process and apparatus 失效
    集成空气分离过程和装置

    公开(公告)号：US06915661B2

    公开(公告)日：2005-07-12

    申请号：US10656473

    申请日：2003-09-05

    Applicant: Patrick Le Bot

    Inventor： Patrick Le Bot

    IPC: C10L3/06 ,  F25J1/00 ,  F25J1/02 ,  F25J3/04 ,  F02B43/00 ,  F02G3/00

    CPC classification number: F25J1/0234 ,  F25J1/0022 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0216 ,  F25J1/0283 ,  F25J1/0284 ,  F25J1/0287 ,  F25J1/0289 ,  F25J1/0292 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0403 ,  F25J3/04036 ,  F25J3/0409 ,  F25J3/04109 ,  F25J3/04127 ,  F25J3/04133 ,  F25J3/04539 ,  F25J3/04575 ,  F25J3/046 ,  F25J3/04606 ,  F25J2200/20 ,  F25J2220/64 ,  F25J2240/70

    Abstract: In a process for separating air in a system comprising a gas turbine, including a compressor (1), a combustor (5) and an expander (17), said expander being coupled to the compressor, a natural gas conversion unit (23) and an air separation unit (20), air is compressed in the compressor, a first part (3) of the air is sent to the combustor and a second part (7) of the air is sent to the air separation unit, oxygen enriched gas (21) is sent from the air separation unit to the natural gas conversion unit, compressed nitrogen enriched gas (16) is sent upstream of the expander, a first stream (33) of natural gas is sent to the natural gas conversion unit, a second stream of natural gas (35) is sent to a natural gas liquefaction unit and work produced by the expander is used to operate a cycle compressor of a refrigeration cycle of the natural gas liquefaction unit.

    Abstract translation: 在包括燃气轮机的系统中的空气分离过程中，包括压缩机（1），燃烧器（5）和膨胀机（17），所述膨胀机与压缩机相连，天然气转换单元（23）和 空气分离单元（20），空气在压缩机中被压缩，空气的第一部分（3）被送到燃烧器，空气的第二部分（7）被送到空气分离单元，富氧气体 （21）从空气分离单元送出到天然气转换单元，在膨胀机的上游向压缩的富氮气体（16）送出，将天然气的第一流（33）送入天然气转换单元 将第二天然气流（35）送入天然气液化装置，由膨胀机产生的作业用于操作天然气液化装置的制冷循环的循环压缩机。

    Process and apparatus for low temperature fractionation of air
    75.
    发明授权
    Process and apparatus for low temperature fractionation of air 失效
    用于空气低温分馏的方法和装置

    公开(公告)号：US06336345B1

    公开(公告)日：2002-01-08

    申请号：US09609762

    申请日：2000-07-03

    Applicant: Horst Corduan

    Inventor： Horst Corduan

    IPC: F25J300

    CPC classification number: F25J3/04412 ,  F25J1/0012 ,  F25J1/0224 ,  F25J1/0234 ,  F25J3/04054 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04339 ,  F25J3/04381 ,  F25J2205/04 ,  F25J2230/20 ,  F25J2245/40 ,  F25J2270/02

    Abstract: The method and the device are used for the cryogenic separation of air. Compressed and purified application air (9, 10, 20) is cooled in a main heat exchanger (30) and is at least partially fed (12, 33) to a rectifying column (50). A first partial flow (26) of the application air is fed to the main heat exchanger (30), is at least partially withdrawn at a first intermediate temperature from the main heat exchanger (28), and is fed to a cold compression (29). The first partial flow (26) is warmed up (27) upstream of its withdrawal (28) at the first intermediate temperature in the main heat exchanger (30).

    Abstract translation: 该方法和装置用于空气的低温分离。 压缩和净化的施用空气（9,10,20）在主热交换器（30）中冷却，并且至少部分地进料（12,33）至精馏塔（50）。 应用空气的第一部分流（26）被供给到主热交换器（30），在主热交换器（28）的第一中间温度下被至少部分地排出，并被供给到冷压缩（29 ）。 在主换热器（30）中，第一部分流（26）在第一中间温度下在其抽出（28）的上游被加热（27）。

    S cycle electric power system
    77.
    发明授权
    S cycle electric power system 失效
    S循环电力系统

    公开(公告)号：US5572861A

    公开(公告)日：1996-11-12

    申请号：US420405

    申请日：1995-04-12

    Applicant: Yulin Shao

    Inventor： Yulin Shao

    IPC: F01K23/06 ,  F25J1/02 ,  F25J3/04 ,  F02C3/28

    CPC classification number: F25J3/04218 ,  F01K23/068 ,  F25J1/0027 ,  F25J1/0221 ,  F25J1/0234 ,  F25J3/04036 ,  F25J3/0409 ,  F25J3/04109 ,  F25J3/04115 ,  F25J3/04139 ,  F25J3/042 ,  F25J3/04296 ,  F25J3/04381 ,  F25J3/04393 ,  F25J3/04533 ,  F25J3/04545 ,  F25J3/04593 ,  F25J3/04612 ,  F25J3/04618 ,  F25J2210/40 ,  F25J2210/50 ,  F25J2240/02 ,  F25J2240/10 ,  F25J2240/20 ,  F25J2240/42 ,  F25J2240/82 ,  F25J2240/90 ,  F25J2245/02 ,  F25J2250/40 ,  F25J2250/50 ,  F25J2260/80 ,  F25J2270/16 ,  Y02E20/16 ,  Y02E20/18 ,  Y02E20/344

    Abstract: The S cycle electric power system embodies a separation condensation unit, a Rankine cycle and the S cycle including coal gasification. Coal, oxygen and steam are converted into high temperature and pressure fuel gas in a coal gasifier. The fuel gas is first utilized to heat recycled carbon dioxide and steam, then to drive a compressor turbine group to produce power. In a main gas turbine group, the fuel gas is burned in the recycled carbon dioxide. Three main turbines are operated at three different pressure levels. The exhaust of the third turbine is employed to heat the recycled carbon dioxide from a 6-stage compressor with intercooling, and to produce steam. Part of the steam goes to coal gasification. The rest of the steam generates power by expansion in a steam turbine. An integrated separation condensation unit produces pure oxygen on site, and captures carbon dioxide formed in fuel combustion. The system has high energy efficiency and zero pollutant emissions including carbon dioxide.

    Abstract translation: S循环电力系统体现了分离冷凝单元，兰金循环和包括煤气化在内的S循环。 煤，氧气和蒸汽在煤气化炉中转化为高温和高压的燃料气体。 燃料气体首先用于加热回收的二氧化碳和蒸汽，然后驱动压缩机涡轮机组以产生动力。 在主燃气轮机组中，燃料气体在再循环的二氧化碳中燃烧。 三个主要涡轮机在三个不同的压力水平运行。 第三涡轮机的排气用于从具有中间冷却的6级压缩机中加热回收的二氧化碳，并产生蒸汽。 部分蒸汽进入煤气化。 蒸汽的其余部分通过膨胀发电。 集成分离冷凝单元现场产生纯氧，并捕获在燃料燃烧中形成的二氧化碳。 该系统具有较高的能源效率和零污染物排放，包括二氧化碳。

    Method and apparatus for gas liquefaction with plural work expansion of feed as refrigerant and air separation cycle embodying the same
    79.
    发明授权
    Method and apparatus for gas liquefaction with plural work expansion of feed as refrigerant and air separation cycle embodying the same 失效
    用于气体液化的方法和装置，其中多个作业膨胀作为制冷剂和空气分离循环体现在其上

    公开(公告)号：US5271231A

    公开(公告)日：1993-12-21

    申请号：US926406

    申请日：1992-08-10

    Applicant: Bao Ha ,  Jean P. Tranier

    Inventor： Bao Ha ,  Jean P. Tranier

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

    CPC classification number: F25J1/0234 ,  F25J1/0015 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0202 ,  F25J1/0208 ,  F25J3/04224 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2210/06 ,  F25J2270/06 ,  F25J2270/90 ,  F25J2290/10

    Abstract: A method of liquefying a low-boiling gas, in which gas is compressed to a high pressure, is cooled in heat exchange structure and is isenthalpically expanded to condense a portion of the same to liquid. The liquid being separated from residual gas and the residual gas is used to cool the heat exchange structure and is then recycled. A portion of the gas is compressed to an intermediate pressure between the high and low pressures, is isentropically expanded at a first temperature and is used to cool a relatively warm portion of heat exchange structure and is then recycled. A portion of the high pressure gas is isentropically expanded at a second temperature and used to cool a relatively cool portion of the heat exchange structure and then again isentropically expanded at a third temperature to that low pressure and returned through the heat exchange structure to cool the same and is then recycled. That first temperature is higher than the second temperature and that second temperature is higher than the third temperature. The gas is preferably nitrogen. The cycle can be part of an air separation unit, whose low pressure nitrogen product is make-up for the liquefaction cycle and whose high pressure nitrogen product is merged with the low pressure cycle gas.

    Liquefied natural gas refrigeration transfer to a cryogenics air separation unit using high presure nitrogen stream
    80.
    发明授权
    Liquefied natural gas refrigeration transfer to a cryogenics air separation unit using high presure nitrogen stream 失效
    液化天然气制冷转移到使用高压氮气流的低温空气分离装置

    公开(公告)号：US5137558A

    公开(公告)日：1992-08-11

    申请号：US691930

    申请日：1991-04-26

    Applicant: Rakesh Agrawal

    Inventor： Rakesh Agrawal

    IPC: F25J3/04 ,  F17C9/04 ,  F25J1/00 ,  F25J1/02

    CPC classification number: F25J3/04224 ,  F17C9/04 ,  F25J1/0015 ,  F25J1/004 ,  F25J1/0042 ,  F25J1/0224 ,  F25J1/0234 ,  F25J1/0292 ,  F25J3/04024 ,  F25J3/04054 ,  F25J3/0406 ,  F25J3/04193 ,  F25J3/04266 ,  F25J3/04351 ,  F25J3/04387 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2225/0123 ,  F17C2227/0309 ,  F17C2265/05 ,  F25J2210/62 ,  F25J2230/08 ,  F25J2230/42 ,  F25J2240/12 ,  F25J2245/90

    Abstract: The present invention relates to a process for the liquefaction of a nitrogen stream produced by separating air components using the combination of cryogenic distillation with improved refrigeration. Very cold liquid natural gas (LNG) is employed as refrigerant, with the LNG concurrently being revaporized for transportation. The requisite circulating liquid is produced by compressing the nitrogen feed streams in a multi-stage compressor, wherein the interstage cooling is provided by heat exchange against the part of the recirculating nitrogen stream yielding a high pressure nitrogen stream. The resulting nitrogen, having a pressure greater than that of the LNG refrigerant, is then used as the circulating fluid to transfer refrigeration from the LNG to other low pressure nitrogen feed streams prior to their cold compression. Also, high pressure nitrogen is used as circulating fluid to transfer refrigeration to precool feed air to cryogenic temperatures prior to its compression in an air separation unit. A portion of the high pressure nitrogen is condensed against vaporizing LNG, followed by reducing the pressure of the condensed, high pressure nitrogen stream, producing a two phase nitrogen stream, which is phase separated into a liquid nitrogen product.

    Abstract translation: 本发明涉及通过使用低温蒸馏与改进的冷藏的组合分离空气组分而产生的氮气流的液化方法。 采用非常冷的液态天然气（LNG）作为制冷剂，LNG同时被蒸发运输。 所需的循环液体是通过在多级压缩机中压缩氮气进料流而产生的，其中级间冷却通过与产生高压氮气流的再循环氮气流的一部分进行热交换而提供。 然后将所得到的氮气压力大于LNG制冷剂的氮气作为循环流体，在冷压缩之前将其从LNG转移到其他低压氮气进料流。 此外，高压氮气用作循环流体，以在空气分离单元中压缩之前将制冷转移到预冷进料空气至低温。 一部分高压氮气与蒸发的LNG冷凝，随后降低冷凝的高压氮气流的压力，产生相分离成液氮产物的两相氮气流。

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