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106 条记录 (耗时 0.015 秒)

    METHOD AND SYSTEM FOR AIR SEPARATION USING A SUPPLEMENTAL REFRIGERATION CYCLE
    22.
    发明申请
    METHOD AND SYSTEM FOR AIR SEPARATION USING A SUPPLEMENTAL REFRIGERATION CYCLE 有权
    使用补充制冷循环的空气分离方法和系统

    公开(公告)号：US20130192301A1

    公开(公告)日：2013-08-01

    申请号：US13803195

    申请日：2013-03-14

    申请人： Jeremiah J. Rauch ,  Andrew M. Warta ,  Hao Wu ,  David R. Parsnick ,  Sophia J. Dowd

    发明人： Jeremiah J. Rauch ,  Andrew M. Warta ,  Hao Wu ,  David R. Parsnick ,  Sophia J. Dowd

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04412 ,  F25J1/0249 ,  F25J1/025 ,  F25J1/0251 ,  F25J1/0254 ,  F25J1/0255 ,  F25J3/0409 ,  F25J3/04187 ,  F25J3/042 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04812 ,  F25J2245/40 ,  F25J2270/14 ,  F25J2270/40 ,  F25J2270/902

    摘要： A system and method for air separation using a supplemental refrigeration cycle is provided. A portion of the refrigeration required by the air separation plant to produce a liquid product stream is supplied via a supplemental refrigeration circuit configured to direct a cooled refrigerant produced by the turboexpander through the main heat exchanger of the air separation plant. The refrigeration capacity is controlled by removing or adding a portion of the refrigerant in the supplemental refrigeration circuit to adjust the inlet pressure while maintaining a substantially constant volumetric flow rate and substantially constant pressure ratio across the compressor. Removing the refrigerant from the supplemental refrigeration circuit decreases the refrigeration imparted by the supplemental refrigeration circuit and thus decreases the production of the liquid product stream. Adding refrigerant allows for an increase in the refrigeration imparted by the supplemental refrigeration circuit and thus allows for increased production of the liquid product stream.

    摘要翻译： 提供了一种使用补充制冷循环进行空气分离的系统和方法。 通过空气分离装置产生液体产物流所需的一部分制冷是通过补充制冷回路来供应的，所述补充制冷回路构造成将由涡轮膨胀机产生的冷却的制冷剂引导通过空气分离装置的主热交换器。 通过去除或添加补充制冷回路中的一部分制冷剂来控制制冷量，以调整入口压力，同时保持压缩机两端的基本恒定的体积流量和基本上恒定的压力比。 从补充制冷回路中除去制冷剂减少了补充制冷回路所产生的制冷量，从而减少了液体产物流的产生。 添加制冷剂允许增加由补充制冷回路产生的制冷，从而允许增加液体产物流的产生。

    Process and Device for Obtaining Liquid Nitrogen by Low Temperature Air Fractionation
    23.
    发明申请
    Process and Device for Obtaining Liquid Nitrogen by Low Temperature Air Fractionation 审中-公开
    通过低温空气分馏获得液氮的方法和装置

    公开(公告)号：US20110083469A1

    公开(公告)日：2011-04-14

    申请号：US12899616

    申请日：2010-10-07

    申请人： Alexander Alekseev

    发明人： Alexander Alekseev

    IPC分类号： F25J3/04

    CPC分类号： F25J3/042 ,  F25J3/0423 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04345 ,  F25J3/04393 ,  F25J3/04424 ,  F25J2200/20 ,  F25J2245/42 ,  F25J2270/02 ,  F25J2270/90

    摘要： A device for obtaining liquid nitrogen by low-temperature air fractionation in a distillation column system for nitrogen-oxygen separation includes a high-pressure column; a low-pressure column; a high-pressure column top condenser which is constructed as a condenser-evaporator and comprises a liquefaction compartment and an evaporation compartment; a low-pressure column top condenser which is constructed as a condenser-evaporator and comprises a liquefaction compartment and an evaporation compartment. A throttle stream is formed by one part of a purified feed air that is liquefied or pseudoliquefied in a main heat exchanger. The throttle stream is expanded, and at least some of the expanded throttle stream is introduced as refrigerant stream into the evaporation compartment of the high-pressure column top condenser.

    摘要翻译： 在用于氮 - 氧分离的蒸馏塔系统中通过低温空气分馏获得液氮的装置包括高压塔; 低压塔; 高压塔顶冷凝器，其构造为冷凝器 - 蒸发器并且包括液化室和蒸发室; 构成冷凝器 - 蒸发器并包括液化室和蒸发室的低压塔顶冷凝器。 节流气流由在主热交换器中液化或者假液化的净化进料空气的一部分形成。 节气门流被膨胀，并且至少一些膨胀的节气门流作为制冷剂流引入高压塔顶冷凝器的蒸发室。

    Air separation
    25.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5878598A

    公开(公告)日：1999-03-09

    申请号：US932694

    申请日：1997-09-18

    申请人： Paul Higginbotham

    发明人： Paul Higginbotham

    IPC分类号： F25J3/04 ,  F25J3/00

    CPC分类号： F25J3/042 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04448 ,  F25J3/04709 ,  F25J3/04715 ,  F25J2200/08 ,  F25J2200/34

    摘要： Air is separated into oxygen and nitrogen in a double rectification column comprising a higher pressure rectification column and a lower pressure rectification column. Liquid nitrogen reflux for the separation is provided by condensing nitrogen vapor taken from the column in a condenser-reboiler. Additional separation is performed in an intermediate pressure rectification column. A first stream of argon-enriched vapor is withdrawn from an intermediate region of the lower pressure rectification column and has an argon fraction separated from it in a first side rectification column. A second stream of argon-enriched vapor is similarly withdrawn and is separated in a second side rectification column which provides vapor to heat a reboiler associated with the intermediate pressure rectification column. Alternatively a stream of oxygen vapor can be so employed instead of the second argon-enriched vapor stream.

    摘要翻译： 在包括高压精馏塔和低压精馏塔的双精馏塔中将空气分离成氧和氮。 用于分离的液氮回流是通过将从塔中取出的氮蒸气冷凝在冷凝器 - 再沸器中来提供的。 在中压精馏塔中进行额外的分离。 富氩蒸气的第一流从低压精馏塔的中间区域排出，并且在第一侧精馏塔中具有与其分离的氩气馏分。 类似地抽出第二股富氩蒸汽，并在第二侧精馏塔中分离，该第二侧精馏塔提供蒸气以加热与中压精馏塔相关的再沸器。 或者，可以如此使用氧气流，而不是第二富氩蒸气流。

    Air separation
    27.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5533339A

    公开(公告)日：1996-07-09

    申请号：US445632

    申请日：1995-05-22

    申请人： Stephen R. Clare ,  Paul Higginbotham ,  David M. Stuart

    发明人： Stephen R. Clare ,  Paul Higginbotham ,  David M. Stuart

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04375 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/042 ,  F25J3/04296 ,  F25J3/04351 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04709 ,  F25J3/04781 ,  F25J2205/02 ,  F25J2215/42 ,  F25J2235/58 ,  F25J2240/10 ,  F25J2240/40 ,  F25J2240/44 ,  F25J2245/42 ,  Y10S62/924

    摘要： Air is compressed in compressors, cooled in a main heat exchanger, and separated into oxygen and nitrogen products in a double rectification column comprising a higher pressure rectification column and a lower pressure rectification column. A liquid oxygen product is withdrawn from the lower pressure column via a conduit. A liquid nitrogen product is also formed. An argon-enriched oxygen vapour stream is withdrawn from the lower pressure column through an outlet and has argon separated from it in an argon column. In order to help meet the requirements of the higher pressure column for reflux, a nitrogen vapour stream is withdrawn from the top of the lower pressure column, is warmed by passage through the heat exchanger, is recompressed in a compressor, and is liquefied by passage back through the heat exchanger from its warm end to its cold end and passage through a valve. A high liquid make and a high argon recovery can both be achieved.

    摘要翻译： 空气在压缩机中压缩，在主热交换器中冷却，并在包括高压精馏塔和低压精馏塔的双精馏塔中分离成氧和氮产物。 液氧产物通过导管从低压塔中排出。 还形成液氮产物。 通过出口从低压塔抽出富氩的氧气流，并在氩气塔中从其中分离出氩。 为了满足高压塔的回流要求，从低压塔的顶部取出氮气流，通过热交换器加热，再在压缩机中压缩，并通过通道液化 通过热交换器从其热端返回到其冷端并通过阀。 可以实现高液体制备和高氩回收。

    Process and installation for the production of gaseous oxygen under pressure
    29.
    发明授权
    Process and installation for the production of gaseous oxygen under pressure 失效
    在压力下生产气态氧气的过程和安装

    公开(公告)号：US5400600A

    公开(公告)日：1995-03-28

    申请号：US72991

    申请日：1993-06-07

    申请人： Maurice Grenier

    发明人： Maurice Grenier

    IPC分类号： C01B13/02 ,  F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04236 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/042 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2215/54 ,  F25J2245/40 ,  F25J2290/10 ,  Y10S62/913

    摘要： Entering air, all of which is compressed to a first high pressure P1, is partly further compressed to a pressure P2. At intermediate temperatures, a portion of each air current is expanded in a turbine (7, 8). One of the turbines can have an output at a pressure P3 comprised between P1 and the medium pressure. The major proportion of the separated oxygen is withdrawn as a liquid from the low pressure column (13), pumped to the production pressure and vaporized in the heat exchange line (2) by condensation or pseudo-condensation of air at one of the pressures P1, P2 and P3, depending on whether the condensation occurs at subcritical or supercritical pressure.

    摘要翻译： 将所有压缩到第一高压P1的空气进一步压缩至压力P2。 在中间温度下，每个气流的一部分在涡轮机（7,8）中膨胀。 一个涡轮机可以具有包括在P1和中压之间的压力P3的输出。 分离氧气的主要比例作为液体从低压塔（13）中抽出，被泵送到生产压力，并在热交换管线（2）中通过在压力P1之一的冷凝或假冷凝来空气化 ，P2和P3，取决于冷凝是否发生在亚临界或超临界压力。

    Air separation
    30.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5123249A

    公开(公告)日：1992-06-23

    申请号：US686738

    申请日：1991-04-17

    申请人： Andrea Buttle

    发明人： Andrea Buttle

    IPC分类号： C01B13/02 ,  F25J3/04

    CPC分类号： F25J3/042 ,  F25J3/0429 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2245/40 ,  F25J2290/10 ,  Y10S62/939

    摘要： A compressed air stream is separated in a double rectification column having a higher pressure stage and a lower pressure stage. The lower pressure stage contains a low pressure drop liquid-vapor contact means having a pressure drop of less than about 400.0 Pa per theoretical stage, for example a structured packing, to effect mass transfer between ascending vapor and descending liquid. A product gaseous oxygen stream is withdrawn from the lower pressure stage through an outlet thereof and is warmed to about ambient temperature in a heat exchanger in countercurrent flow relationship with the compressed air stream which is thereby cooled. Refrigeration for the process is created by expansion of part of the incoming air. By using a low pressure drop liquid-vapor contact means in the lower pressure stage, the resulting operating pressure in the higher pressure stage is able to be lower than in a conventional process enabling the incoming air to be compressed to a lower pressure (for example a pressure in a range of about 5.0 to 6.0 bar). At such pressures, two expansion turbines are used to enable the heat exchanger to be operated efficiently.