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    Method for providing refrigeration to a cryogenic rectification plant
    2.
    发明授权
    Method for providing refrigeration to a cryogenic rectification plant 有权
    向低温精馏装置提供制冷的方法

    公开(公告)号：US06543253B1

    公开(公告)日：2003-04-08

    申请号：US10153663

    申请日：2002-05-24

    申请人： Herbert Raymond Schaub ,  Todd Alan Skare ,  Thomas John Bergman, Jr.

    发明人： Herbert Raymond Schaub ,  Todd Alan Skare ,  Thomas John Bergman, Jr.

    IPC分类号： F25J300

    CPC分类号： F25J3/04678 ,  F25J3/04345 ,  F25J3/04412 ,  F25J3/04715 ,  F25J2200/06 ,  F25J2200/34 ,  F25J2215/52 ,  F25J2215/56 ,  F25J2220/50 ,  Y10S62/912

    摘要： A method for providing refrigeration to a cryogenic rectification plant which enables the facile provision of varying amounts of refrigeration to the plant wherein a working fluid is pressurized in a recycle compressor, a first portion is at least partially condensed in a heat exchanger and passed into the plant, a second portion is cooled and then turboexpanded to generate refrigeration, the refrigeration bearing second portion passes refrigeration in the heat exchanger to the first portion to effect the condensation, and the resulting second portion is not passed into the cryogenic rectification plant but rather is returned to the recycle compressor.

    摘要翻译： 一种用于向低温精馏装置提供制冷的方法，其能够容易地向工厂提供不同数量的制冷，其中工作流体在循环压缩机中被加压，第一部分在热交换器中至少部分地冷凝并传递到 第二部分被冷却，然后涡轮膨胀以产生冷冻，制冷轴承第二部分将热交换器中的制冷剂传递到第一部分以实现冷凝，并且所得到的第二部分不被进入低温精馏装置，而是 返回到再循环压缩机。

    Ultra high purity nitrogen and oxygen generator unit
    3.
    发明授权
    Ultra high purity nitrogen and oxygen generator unit 失效
    超高纯度氮气和氧气发生器

    公开(公告)号：US5778698A

    公开(公告)日：1998-07-14

    申请号：US755006

    申请日：1996-11-22

    申请人： Takao Yamamoto

    发明人： Takao Yamamoto

    IPC分类号： F25J3/04 ,  F25J3/00

    CPC分类号： F25J3/04854 ,  F25J3/04157 ,  F25J3/04163 ,  F25J3/04169 ,  F25J3/04254 ,  F25J3/04284 ,  F25J3/0443 ,  F25J2200/34 ,  F25J2200/50 ,  F25J2200/90 ,  F25J2205/82 ,  F25J2210/42 ,  F25J2215/44 ,  F25J2215/56 ,  F25J2220/42 ,  F25J2220/50 ,  F25J2220/52 ,  F25J2245/02 ,  F25J2250/20 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2250/50 ,  F25J2250/52 ,  F25J2270/90

    摘要： A unit capable of simultaneously producing nitrogen of ultra high purity and liquid oxygen of ultra high purity, is provided. The inside of the first rectification column 6 is demarcated to an upper rectifying part 12, and upper-stage middle rectifying part 13, a lower-stage middle rectifying part 14 and a lower rectifying part 15. To the upper part 11 above the upper rectifying part 12 is connected a nitrogen condenser 8. A second rectification column 7 is demarcated to an upper rectifying part 22 and a lower rectifying part 23, and has a reboiler 25 provided under its lower rectifying part 22. Ultra high purity liquid nitrogen is recovered from between the upper rectifying part 12 and upper-stage middle rectifying part 13 of the first rectification column 6, and ultra high purity liquid oxygen is recovered from below the lower rectifying part 23 of the second rectification column 7.

    摘要翻译： 提供能够同时生产超高纯度氮和超高纯度氮气的单元。 第一整流柱6的内部被划分为上部整流部12和上部中间整流部13，下部中间整流部14以及下部整流部15。 部分12连接有氮冷凝器8.第二精馏塔7被划分为上部精馏部分22和下部精馏部分23，并且在其下部精馏部分22下方设置有再沸器25.超高纯度液氮从 在第一精馏塔6的上部精馏部12和上段中间精馏部13之间，从第二精馏塔7的下部整流部23的下方回收超高纯度的液氧。

    Low Temperature Air Fractionation with External Fluid
    6.
    发明申请
    Low Temperature Air Fractionation with External Fluid 审中-公开
    低温空气分馏与外部液体

    公开(公告)号：US20090120128A1

    公开(公告)日：2009-05-14

    申请号：US12257675

    申请日：2008-10-24

    申请人： Stefan LOCHNER

    发明人： Stefan LOCHNER

    IPC分类号： F25J3/00

    CPC分类号： F25J3/0443 ,  F25J3/04048 ,  F25J3/0409 ,  F25J3/0426 ,  F25J3/04284 ,  F25J2200/90 ,  F25J2215/50 ,  F25J2215/56 ,  F25J2220/50 ,  F25J2245/02 ,  F25J2250/02 ,  F25J2250/20 ,  F25J2290/62

    摘要： In low-temperature air fractionation, feed air (8) is cooled in a main heat exchanger (9) and introduced into a distillation column system for nitrogen-oxygen separation (11, 43), which system has at least one single column (12). At least one nitrogen-enriched or oxygen-enriched product stream (15, 16, 17; 53; 51, 56, 57; 19, 60) is withdrawn from the distillation column system for nitrogen-oxygen separation and warmed in the main heat exchanger (9). A fluid from an external source is passed at least at times into a liquid tank (70). At least at times fluid (71) is withdrawn in the liquid state from the liquid tank (70), vaporized in the main heat exchanger (9) and is obtained as gaseous additional product (72, 73).

    摘要翻译： 在低温空气分馏中，进料空气（8）在主热交换器（9）中冷却，并引入用于氮 - 氧分离的蒸馏塔系统（11,43），该系统具有至少一个单塔（12 ）。 从蒸馏塔系统中取出至少一个富氮或富氧产物流（15,16,17; 53; 51,56,57; 19,60）以进行氮 - 氧分离，并在主热交换器 （9）。 来自外部源的流体至少有时进入液体罐（70）。 至少有时液体（71）以液体状态从液体罐（70）中排出，在主热交换器（9）中蒸发并作为气体附加产物（72,73）获得。

    Ultra high purity nitrogen and oxygen generator unit
    7.
    发明授权
    Ultra high purity nitrogen and oxygen generator unit 失效
    超高纯度氮气和氧气发生器

    公开(公告)号：US6050106A

    公开(公告)日：2000-04-18

    申请号：US168611

    申请日：1998-10-09

    申请人： Takao Yamamoto ,  Naohiko Yamashita

    发明人： Takao Yamamoto ,  Naohiko Yamashita

    IPC分类号： F25J3/04 ,  F25J1/00

    CPC分类号： F25J3/04284 ,  F25J3/04163 ,  F25J3/04169 ,  F25J3/04254 ,  F25J3/0443 ,  F25J3/0486 ,  F25J3/04872 ,  F25J2200/50 ,  F25J2200/94 ,  F25J2205/82 ,  F25J2210/42 ,  F25J2215/44 ,  F25J2215/56 ,  F25J2220/42 ,  F25J2220/50 ,  F25J2220/52 ,  F25J2245/02 ,  F25J2250/20 ,  F25J2250/40 ,  F25J2250/50

    摘要： There is provided a unit capable of simultaneously producing nitrogen of ra high purity and oxygen of ultra high purity from air as a feed material. Feed air is introduced into to the bottom 15 of a first rectification column 6. Liquid nitrogen of ultra high purity is recovered from between the upper rectifying part 12 and middle rectifying part 13, and liquid air free of high boiling point components is recovered from between the middle rectifying part 13 and lower rectifying part 14. Oxygen-rich liquid air collected in the bottom 15 is reduced in pressure by an expansion valve 31, and then introduced into a nitrogen condenser 8 as a refrigerant. After a portion of said liquid air is reduced in pressure by an expansion valve 33, it is introduced into the second rectification column 7, where low boiling point components are separated from the top part 21 and liquid oxygen of ultra high purity is recovered from the bottom 23. The remaining portion of said liquid air is reduced in pressure by an expansion valve 32, and then introduced into the nitrogen condenser as a part of the refrigerant. Accordingly, the quantity of a reflux liquid flowing through the lower rectifying part 14 is regulated, and the quantity of said liquid air introduced into the second rectification column 7 is regulated.

    摘要翻译： 提供了能够从作为原料的空气同时生产超高纯度氮和超高纯氧的单元。 进料空气被引入到第一精馏塔6的底部15中。从上部精馏部分12和中间精馏部分13之间回收超高纯度的液氮，从中间精馏部分13回收不含高沸点组分的液体空气 中间整流部13和下部整流部14.通过膨胀阀31将在底部15中收集的富氧液体空气减压，然后作为制冷剂导入氮气冷凝器8。 在一部分所述液体空气通过膨胀阀33减压之后，将其引入到第二精馏塔7中，其中低沸点组分与顶部21分离，并从其中回收超高纯度的液氧 所述液体空气的剩余部分通过膨胀阀32减压，然后作为制冷剂的一部分引入氮冷凝器。 因此，流过下整流部14的回流液的量被调节，并且调节引入第二精馏塔7的所述液体空气的量。

    Method and apparatus for producing ultra-high purity oxygen
    8.
    发明授权
    Method and apparatus for producing ultra-high purity oxygen 失效
    用于生产超高纯氧的方法和设备

    公开(公告)号：US5528906A

    公开(公告)日：1996-06-25

    申请号：US494899

    申请日：1995-06-26

    申请人： Joseph P. Naumovitz ,  Robert A. Mostello

    发明人： Joseph P. Naumovitz ,  Robert A. Mostello

    IPC分类号： F25J3/02 ,  F25J3/04 ,  F25J3/00

    CPC分类号： F25J3/04048 ,  F25J3/04066 ,  F25J3/04284 ,  F25J3/04321 ,  F25J3/04333 ,  F25J3/04363 ,  F25J3/0443 ,  F25J2200/32 ,  F25J2215/56 ,  F25J2220/50 ,  F25J2220/52 ,  F25J2245/02 ,  Y10S62/924

    摘要： A method and apparatus for producing a ultra-high purity oxygen product in which a nitrogen generator is operated to produce nitrogen and an oxygen rich fraction as column bottoms. Part of the oxygen rich fraction can be further processed at column pressure within rectification column to produce a tower overhead lean in hydrocarbons such as methane, acetylene, propane and propylene. After liquefaction in a head condenser of the rectification column, part of the condensate is further processed in a stripping column to produce an ultra-high purity liquid oxygen column bottoms which can be extracted as product.

    摘要翻译： 一种用于生产超高纯度氧产物的方法和装置，其中氮气发生器运行以产生氮气和富氧部分作为塔底。 富氧部分的一部分可以在精馏塔内的柱压力下进一步处理，以产生在诸如甲烷，乙炔，丙烷和丙烯的烃类中的塔顶馏出物。 在精馏塔的头冷凝器中液化后，将部分冷凝物在汽提塔中进一步处理，以产生可以作为产物提取的超高纯度液氧塔底。

    Cryogenic gas purification process and apparatus
    9.
    发明授权
    Cryogenic gas purification process and apparatus 失效
    低温气体净化工艺及装置

    公开(公告)号：US4934147A

    公开(公告)日：1990-06-19

    申请号：US407569

    申请日：1989-09-15

    申请人： Douglas V. Eyre

    发明人： Douglas V. Eyre

    IPC分类号： F25J3/04 ,  F25J3/08

    CPC分类号： F25J3/08 ,  F25J3/0426 ,  F25J3/04278 ,  F25J3/04351 ,  F25J3/04412 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/30 ,  F25J2200/34 ,  F25J2205/40 ,  F25J2205/84 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2215/44 ,  F25J2215/56 ,  F25J2215/58 ,  F25J2220/42 ,  F25J2220/44 ,  F25J2220/50 ,  F25J2220/52 ,  F25J2235/02 ,  F25J2270/42 ,  F25J2270/904 ,  F25J2280/02

    摘要： A process and apparatus for the ultrapurification of cryogenic low boiling liquified gases such as oxygen and nitrogen which contain trace impurities. The impure gas is introduced into a first distillation column provided with a top column condenser and a bottom column reboiler. The impure gas is substantially at its liquid-gas equilibrium temperature at the pressures within the first distillation column. Here the gas is separated by distillation into a first vapor fraction containing low boiling point impurities and a first liquid fraction containing high boiling point impurities. The first vapor fraction is withdrawn and introduced into a second distillation column provided with a top column condenser and a bottom column reboiler. The first vapor fraction is substantially at the liquid-gas equilibrium temperature at the pressures within the second distillation column. Here the vapor fraction is separated by distillation into a second vapor fraction containing low boiling point impurities and a second liquid fraction free of trace impurities which is withdrawn as product. Cooling for the process is provided by indirect heat exchange with a cryogenic low boiling gas such as nitrogen, oxygen, or air. The gas to be purified as well as the heat exchange gas can be obtained from a standard air separation unit or the process can be conducted using gases and liquids obtained from storage.

    摘要翻译： 用于低温低沸点液化气体如氧气和氮气超纯化的方法和设备，其含有微量杂质。 将不纯气体引入设置有顶塔冷凝器和底塔再沸器的第一蒸馏塔中。 不纯气体在第一蒸馏塔内的压力下基本处于液 - 气平衡温度。 这里，通过蒸馏将气体分离成含有低沸点杂质的第一蒸气馏分和含有高沸点杂质的第一液体馏分。 取出第一蒸气馏分并将其引入设置有顶塔冷凝器和底塔再沸器的第二蒸馏塔中。 第一蒸气馏分在第二蒸馏塔内的压力下基本处于液 - 气平衡温度。 这里通过蒸馏将蒸气馏分分离成含有低沸点杂质的第二蒸气馏分和作为产物取出的无痕量杂质的第二液体部分。 通过与低温低沸点气体如氮气，氧气或空气的间接热交换来提供该方法的冷却。 待净化的气体以及热交换气体可以从标准空气分离单元获得，或者可以使用从储存器获得的气体和液体进行该过程。