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    Process and apparatus for the cryogenic separation of air
    1.
    发明授权
    Process and apparatus for the cryogenic separation of air 失效
    空气低温分离的方法和装置

    公开(公告)号：US06662593B1

    公开(公告)日：2003-12-16

    申请号：US10317593

    申请日：2002-12-12

    申请人： Paul Higginbotham ,  Rakesh Agrawal ,  Adam Adrian Brostow ,  Kelvin Graham Hayes ,  Donn Michael Herron ,  Declan Patrick O'Connor

    发明人： Paul Higginbotham ,  Rakesh Agrawal ,  Adam Adrian Brostow ,  Kelvin Graham Hayes ,  Donn Michael Herron ,  Declan Patrick O'Connor

    IPC分类号： F25J304

    CPC分类号： F25J3/04745 ,  F25J3/0409 ,  F25J3/04412 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2200/90 ,  Y10S62/925

    摘要： Liquid oxygen (“LOX”) product and a krypton- and xenon-enriched liquid product is produced from the cryogenic separation of air using a cryogenic distillation system. The process comprises separating feed air in the main distillation system into nitrogen-rich overhead vapor and said krypton- and xenon-enriched liquid product. At least a portion of said krypton- and xenon-enriched liquid product is removed from the main distillation system for further distillation, to produce at least one krypton- and/or xenon-rich product. Xenon-lean liquid is fed to the first additional distillation column and separated into oxygen-rich overhead vapor and said LOX product having a concentration of xenon less than that in said feed air. The xenon-lean liquid is usually also lean in krypton.

    摘要翻译： 使用低温蒸馏系统从空气的低温分离产生液氧（“LOX”）产物和富含氪和氙的液体产物。 该方法包括将主蒸馏系统中的进料空气分离成富氮塔顶蒸气和所述氪和氙浓缩液体产物。 将所述氪和氙浓缩液体产物的至少一部分从主蒸馏系统中除去以进一步蒸馏，以产生至少一种氪和/或氙浓缩产物。 将贫氙液体进料到第一另外的蒸馏塔并分离成富氧塔顶蒸气，并且所述LOX产物的氙浓度小于所述进料空气中的浓度。 氙气稀薄的液体通常也倚在氪气中。

    Process for nitrogen liquefaction
    2.
    发明授权
    Process for nitrogen liquefaction 失效
    氮液化过程

    公开(公告)号：US06298688B1

    公开(公告)日：2001-10-09

    申请号：US09415996

    申请日：1999-10-12

    申请人： Adam Adrian Brostow ,  Rakesh Agrawal ,  Donn Michael Herron ,  Mark Julian Roberts

    发明人： Adam Adrian Brostow ,  Rakesh Agrawal ,  Donn Michael Herron ,  Mark Julian Roberts

    IPC分类号： F25J300

    CPC分类号： F25J1/0037 ,  F25J1/0012 ,  F25J1/0015 ,  F25J1/004 ,  F25J1/0052 ,  F25J1/0055 ,  F25J1/0219 ,  F25J1/0282 ,  F25J1/0283 ,  F25J1/0284 ,  F25J1/0285 ,  F25J1/0288 ,  F25J1/0291 ,  F25J2230/20 ,  F25J2230/30

    摘要： A process for gas liquefaction, particularly nitrogen liquefaction, which combines the use of a nitrogen autorefrigeration cooling cycle with one or more closed-loop refrigeration cycles using two or more refrigerant components. The closed-loop refrigeration cycle or cycles provide refrigeration in a temperature range having a lowest temperature between about −125° F. and about −250° F. A nitrogen expander cycle provides additional refrigeration, a portion of which is provided at temperatures below the lowest temperature of the closed-loop or recirculating refrigeration cycle or cycles. The lowest temperature of the nitrogen expander cycle refrigeration range is between about −220° F. and about −320° F. The combined use of the two different refrigerant systems allows each system to operate most efficiently in the optimum temperature range, thereby reducing the power consumption required for liquefaction.

    摘要翻译： 一种用于气体液化，特别是氮液化的方法，其结合了使用两个或多个制冷剂组分的氮自动制冷冷却循环与一个或多个闭环制冷循环的使用。 闭环制冷循环或循环在具有约-125°F至约-22°F之间的最低温度的温度范围内提供制冷。氮气扩张器循环提供额外的制冷，其一部分在低于 闭环或循环制冷循环的最低温度或循环。 氮气膨胀机循环制冷范围的最低温度为约-220°F至约-320°F。两种不同制冷剂系统的组合使用允许每个系统在最佳温度范围内最有效地运行，从而减少 液化所需的功耗。

    Process for the production of intermediate pressure oxygen
    5.
    发明授权
    Process for the production of intermediate pressure oxygen 失效
    中压氧生产工艺

    公开(公告)号：US06253576B1

    公开(公告)日：2001-07-03

    申请号：US09437917

    申请日：1999-11-09

    申请人： Donn Michael Herron ,  Adam Adrian Brostow

    发明人： Donn Michael Herron ,  Adam Adrian Brostow

    IPC分类号： F25J100

    CPC分类号： F25J3/04103 ,  F25J3/04054 ,  F25J3/0409 ,  F25J3/04206 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2205/04 ,  F25J2215/50 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2250/50 ,  F25J2250/52 ,  F25J2290/12

    摘要： A process is provided for the production of intermediate pressure oxygen. Intermediate pressure is defined as a pressure range between about 15 psia and about 27 psia, and preferably between about 17 psia and about 23 psia. The process uses a double column cryogenic air separation system for the production of oxygen from air which includes a higher pressure column and a lower pressure column, wherein a nitrogen-enriched fraction from the higher pressure column is condensed by indirect heat exchange in a reboiler-condenser that provides at least a fraction of the boilup at the bottom of the lower pressure column. Oxygen is withdrawn from the lower pressure column as a liquid and vaporized. One portion of air is feed air to the higher pressure column and a another portion of air is at least partially condensed by indirect heat exchange with the vaporizing oxygen. The latter portion of air is at least partially condensed at a pressure less than the pressure of the feed air to the higher pressure column. The process is suitable for the production of intermediate pressure oxygen with a purity of at least about 85 mole %.

    摘要翻译： 提供了用于生产中压氧的方法。 中间压被定义为在约15psia至约27psia之间，优选在约17psia至约23psia之间的压力范围。 该方法使用双柱低温空气分离系统，用于从空气中产生氧气，其包括较高压力塔和较低压力塔，其中来自高压塔的富氮馏分通过在再沸器中的间接热交换而冷凝， 冷凝器，其在低压塔的底部提供至少一部分煮沸。 氧气作为液体从低压塔中取出并汽化。 空气的一部分是进入高压塔的空气，另一部分空气通过与汽化氧的间接热交换而至少部分地冷凝。 空气的后一部分在低于进入高压塔的进料空气的压力的压力下至少部分冷凝。 该方法适用于生产纯度至少为约85％（摩尔）的中压氧气。

    Refrigerant Composition Control
    6.
    发明申请
    Refrigerant Composition Control 审中-公开
    制冷剂组成控制

    公开(公告)号：US20110036121A1

    公开(公告)日：2011-02-17

    申请号：US12540903

    申请日：2009-08-13

    申请人： Mark Julian Roberts ,  Adam Adrian Brostow

    发明人： Mark Julian Roberts ,  Adam Adrian Brostow

    IPC分类号： F25J1/02 ,  F25J3/00

    CPC分类号： F25J1/0022 ,  F25J1/005 ,  F25J1/0072 ,  F25J1/0204 ,  F25J1/025 ,  F25J1/0265 ,  F25J1/0279 ,  F25J2210/06 ,  F25J2220/44 ,  F25J2220/62 ,  F25J2270/16

    摘要： A system and method for removal of a contaminant comprising removing a liquefied portion of a refrigerant stream comprising nitrogen from a reverse Brayton cycle refrigerant system, introducing the liquefied refrigerant stream into a contaminant removal column as a reflux stream removing a contaminant stream from the bottom of the contaminant removal column, removing a vapor stream enriched in nitrogen from the top of the contaminant removal column, and introducing the vapor stream enriched in nitrogen back into the reverse Brayton cycle refrigerant system.

    摘要翻译： 一种用于去除污染物的系统和方法，包括从反向布雷顿循环制冷剂系统中除去包含氮气的制冷剂流的液化部分，将液化的制冷剂流作为回流流引入污染物去除塔，从其底部除去污染物流 污染物去除塔，从污染物去除塔的顶部除去富含氮气的蒸气流，并将富含氮气的蒸汽流引回到反向布雷顿循环制冷剂系统中。

    Nitrogen Rejection Column Reboiler Configuration
    7.
    发明申请
    Nitrogen Rejection Column Reboiler Configuration 审中-公开
    氮气排放塔再沸器配置

    公开(公告)号：US20080314079A1

    公开(公告)日：2008-12-25

    申请号：US11764975

    申请日：2007-06-19

    申请人： Adam Adrian Brostow

    发明人： Adam Adrian Brostow

    IPC分类号： F25J3/00

    CPC分类号： F25J3/0233 ,  F25J3/0209 ,  F25J3/0257 ,  F25J2200/02 ,  F25J2200/40 ,  F25J2200/70 ,  F25J2215/04 ,  F25J2235/60 ,  F25J2240/30 ,  F25J2240/40 ,  F25J2250/02 ,  F25J2270/02

    摘要： A process is provided for denitrogenation of a crude LNG stream. A crude LNG stream comprising between about 1% and 10% nitrogen, and the remainder methane and heavier hydrocarbons, is expanded in a means for expansion, and cooled. Resultant crude LNG stream is introduced into nitrogen rejection column, wherein nitrogen content of LNG is reduced. A nitrogen-enriched vapor stream is withdrawn from top of the column, and a nitrogen-diminished liquid stream is withdrawn from bottom of the column. The nitrogen-diminished bottoms LNG stream is pumped to higher pressure and then divided into two streams. The second stream is reduced in pressure and then passed through reboiler heat exchanger, thus cooling the crude LNG stream. Partially vaporized second stream is reinjected into column at a level above the level of withdrawal of nitrogen-diminished bottoms LNG stream and below the level of introduction of crude LNG feed stream to provide column boilup.

    摘要翻译： 提供了一种用于粗制LNG流的脱氮的方法。 包含约1％至10％氮气和其余甲烷和较重烃的粗LNG流在膨胀和冷却装置中膨胀。 将生成的原油LNG流引入氮排除塔，其中LNG的氮含量降低。 从塔的顶部排出富氮蒸汽流，并从塔的底部排出氮气减少的液体物流。 将氮气减少的底部LNG流泵送到较高压力，然后分成两股。 第二流减压，然后通过再沸器热交换器，从而冷却原油LNG流。 将部分汽化的第二流以高于氮气减少的塔底LNG流的撤出水平的水平重新注入塔中，并且低于原料LNG进料流的引入水平以提供塔沸腾。

    Hybrid gas liquefaction cycle with multiple expanders
    8.
    发明授权
    Hybrid gas liquefaction cycle with multiple expanders 有权
    混合气体液化循环与多个膨胀机

    公开(公告)号：US07127914B2

    公开(公告)日：2006-10-31

    申请号：US10664336

    申请日：2003-09-17

    申请人： Mark Julian Roberts ,  Christopher Geoffrey Spilsbury ,  Adam Adrian Brostow

    发明人： Mark Julian Roberts ,  Christopher Geoffrey Spilsbury ,  Adam Adrian Brostow

    IPC分类号： F25J1/00 ,  F25B7/00

    CPC分类号： F25J1/0072 ,  F25J1/0022 ,  F25J1/005 ,  F25J1/0052 ,  F25J1/0097 ,  F25J1/0217 ,  F25J1/0218 ,  F25J1/0267 ,  F25J1/0268 ,  F25J1/0274 ,  F25J1/0291 ,  F25J1/0292 ,  F25J2220/62 ,  F25J2220/64 ,  F25J2245/02 ,  F25J2270/16

    摘要： Method for gas liquefaction comprising cooling a feed gas by a first refrigeration system in a first heat exchange zone and withdrawing a substantially liquefied stream therefrom, further cooling the substantially liquefied stream by indirect heat exchange with one or more work-expanded refrigerant streams in a second heat exchange zone, and withdrawing therefrom a further cooled, substantially liquefied stream. At least one of the one or more work-expanded refrigerant streams is provided by compressing one or more refrigerant gases to provide a compressed refrigerant stream, cooling all or a portion of the compressed refrigerant stream in a third heat exchange zone to provide a cooled, compressed refrigerant stream, and work expanding the cooled, compressed refrigerant stream to provide one of the one or more work-expanded refrigerant streams. The flow rate of a work-expanded refrigerant stream in the second heat exchange zone typically is less than the total flow rate of one or more work-expanded refrigerant streams in the third heat exchange zone.

    摘要翻译： 用于气体液化的方法，包括通过第一热交换区域中的第一制冷系统冷却进料气体并从其中排出基本上液化的物流，通过在一秒钟内与一个或多个工作膨胀的制冷剂流间接热交换进一步冷却基本上液化的流 热交换区，并从其中抽出进一步冷却的基本上液化的物流。 一个或多个工作膨胀的制冷剂流中的至少一个通过压缩一个或多个制冷剂气体以提供压缩的制冷剂流来提供，在第三热交换区域中冷却压缩的制冷剂流的全部或一部分，以提供冷却的， 压缩的制冷剂流，并且对冷却的压缩的制冷剂流进行扩展，以提供一个或多个工作膨胀的制冷剂流中的一个。 第二热交换区中的工作膨胀的制冷剂流的流量通常小于第三热交换区中的一个或多个工作膨胀的制冷剂流的总流量。