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    Process and apparatus for the production of low pressure gaseous oxygen
    71.
    发明申请
    Process and apparatus for the production of low pressure gaseous oxygen 失效
    用于生产低压气态氧气的方法和设备

    公开(公告)号：US20020100293A1

    公开(公告)日：2002-08-01

    申请号：US10059997

    申请日：2001-10-22

    发明人： Alan Lindsay Prentice ,  Rodney John Allam

    IPC分类号： F25J003/00

    CPC分类号： F25J3/042 ,  F25J3/0409 ,  F25J3/04103 ,  F25J3/04236 ,  F25J3/0426 ,  F25J3/04412 ,  F25J2210/50 ,  F25J2215/02 ,  F25J2215/50 ,  F25J2245/50 ,  Y02P20/129 ,  Y10S62/913

    摘要： A process and apparatus for the production of low pressure gaseous oxygen (nullGOXnull) in which compressed and purified feed air (1) is cooled and at least partially condensed in heat exchange means (E1) having a warm end and a cold end and the cooled and at least partially condensed feed air (2) is then distilled in a cryogenic distillation column system (C1, C2). A liquid oxygen (nullLOXnull) product stream (8) is removed from the column system (C1, C2) and vaporized and warmed by heat exchange (E1) to produce GOX. LOX refrigerant (10) from an external source is used to provide a portion of the refrigeration duty required for the cooling and at least partial condensation of the feed air stream (1). The LOX refrigerant is injected into the heat exchange means (E1) either: (a) at a pressure greater than that of the LOX product entering the heat exchange means (E1); or (b) at a pressure substantially equal to that of the LOX product entering the heat exchange means and at an intermediate point between the warm and cold ends where the temperature of the heat exchange means is above the boiling temperature of the LOX refrigerant.

    摘要翻译： 一种用于生产低压气态氧（“GOX”）的方法和装置，其中压缩和净化的进料空气（1）在热端和冷端的热交换装置（E1）中冷却并至少部分冷凝， 然后将冷却的和至少部分冷凝的进料空气（2）在低温蒸馏塔系统（C1，C2）中蒸馏。 从柱系统（C1，C2）中除去液氧（“LOX”）产物流（8），并通过热交换（E1）蒸发和加热以产生GOX。 来自外部源的LOX制冷剂（10）用于提供冷却和进料空气流（1）的至少部分冷凝所需的部分制冷负荷。 LOX制冷剂被注入到热交换装置（E1）中，或者：（a）压力大于进入热交换装置（E1）的LOX产品的压力; 或（b）的压力基本上等于进入热交换装置的LOX产品的压力，以及在热交换装置的温度高于LOX制冷剂的沸腾温度的温冷端和冷端之间的中间点。

    Air separation method to produce gaseous product
    72.
    发明授权
    Air separation method to produce gaseous product 失效
    空气分离法生产气态产品

    公开(公告)号：US06357259B1

    公开(公告)日：2002-03-19

    申请号：US09672489

    申请日：2000-09-29

    申请人： Paul Higginbotham ,  Niranjan Sundaram ,  Leighton B. Wilson ,  Joseph Straub ,  Joseph P. Naumovitz

    发明人： Paul Higginbotham ,  Niranjan Sundaram ,  Leighton B. Wilson ,  Joseph Straub ,  Joseph P. Naumovitz

    IPC分类号： F25I100

    CPC分类号： F25J3/0409 ,  F25J3/04103 ,  F25J3/04254 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04509 ,  F25J3/04515 ,  F25J2210/40 ,  F25J2210/42 ,  F25J2215/40 ,  Y10S62/913

    摘要： A method of producing a gaseous product, for instance gaseous oxygen in accordance with a cyclical demand pattern having high and low periods of demand. During periods of high demand, liquid is vaporized against condensing air which is in turn stored. During low demand periods, product is accumulated and previously stored liquid air is introduced into the column. During both high and low periods of demand liquid product is drawn to reduce the percentage variance in the required flow rate to the booster compressor used in producing the air to be liquefied. Preferably, during periods of high demand, a turbine used in generating refrigeration can be turned down to increase the amount of air available for condensation and with a reduction in production of liquid product.

    摘要翻译： 根据具有高和低周期需求的周期性需求模式来生产气态产物的方法，例如气态氧。 在高要求期间，液体被蒸发成冷凝空气，冷凝空气又被储存。 在低需求期间，产品积聚，预先储存的液体空气被引入柱中。 在高和低期间的需求期间，抽取液体产品以减少用于生产待液化空气的增压压缩机所需流量的百分比变化。 优选地，在高要求期间，用于产生制冷的涡轮机可以被降低，以增加可用于冷凝的空气的量和液体产物的生产的减少。

    Air separation method and apparatus to produce an oxygen product
    74.
    发明授权
    Air separation method and apparatus to produce an oxygen product 失效
    制备氧气产品的空气分离方法和装置

    公开(公告)号：US6082135A

    公开(公告)日：2000-07-04

    申请号：US240025

    申请日：1999-01-29

    申请人： Robert F. Duke ,  Joseph P. Naumovitz ,  Charles Brooks

    发明人： Robert F. Duke ,  Joseph P. Naumovitz ,  Charles Brooks

    IPC分类号： F25J3/04 ,  F25J1/00

    CPC分类号： F25J3/04254 ,  F25J3/0409 ,  F25J3/044 ,  F25J2200/70 ,  F25J2210/50 ,  Y10S62/913

    摘要： A method and apparatus for separating out is used to produce an oxygen product in which an air stream after having been compressed and purified is introduced into a bottom reblower located in a bottom region of the distillation column to produce boil up in such distillation column. The resultant air stream liquefies to produce a liquid air stream. The liquid air stream after having been valve expanded is stripped within the distillation column to produce a column bottoms which can be extracted as a product stream that is vaporized within a main heat exchanger. Product stream can be pressurized by being pumped to atmospheric a pressure hence liquefying a further compressed air stream to produce further liquid air is also stripped within the distillation column. The distillation column operates at near atmospheric pressures that is pressures between 1 and 1.3 bar absolute. Refrigeration is introduced into the plant by injecting liquid preferably liquid oxygen into a bottom region of the distillation column.

    摘要翻译： 用于分离的方法和装置用于产生氧气产物，其中将压缩和净化后的空气流引入位于蒸馏塔底部区域的底部反应器中，以在该蒸馏塔中产生沸腾。 所得气流液化以产生液体空气流。 阀门膨胀后的液体空气流在蒸馏塔内被汽提，产生塔底，其可以作为在主热交换器内汽化的产物流提取。 产物流可以通过泵送到大气压而被加压，从而液化另外的压缩空气流以产生另外的液体空气也在蒸馏塔内被汽提。 蒸馏塔在接近大气压力下操作，压力范围为1至1.3巴绝对压​​力。 通过将液体优选液体氧注入到蒸馏塔的底部区域中将制冷物引入植物中。

    Ultra high purity oxygen distillation unit integrated with ultra high purity nitrogen purifier
    75.
    发明授权
    Ultra high purity oxygen distillation unit integrated with ultra high purity nitrogen purifier 失效
    超高纯氧蒸馏装置与超高纯度氮气净化器相结合

    公开(公告)号：US5682763A

    公开(公告)日：1997-11-04

    申请号：US738989

    申请日：1996-10-25

    申请人： Rakesh Agrawal ,  Zbigniew Tadeusz Fidkowski ,  Lawrence Walter Pruneski

    发明人： Rakesh Agrawal ,  Zbigniew Tadeusz Fidkowski ,  Lawrence Walter Pruneski

    IPC分类号： F25J3/02 ,  F25J3/08 ,  F25J1/00

    CPC分类号： F25J3/08 ,  F25J2200/02 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2215/44 ,  F25J2215/56 ,  F25J2270/42 ,  F25J2270/904 ,  Y10S62/913

    摘要： A method for producing ultra high purity liquid oxygen from standard grade liquid oxygen which integrates the oxygen purification process with a nitrogen purification process by utilizing the condensing duty of liquid nitrogen, thereby causing the nitrogen to vaporize which is desirable prior to delivery to a nitrogen purification unit. The method of the present invention includes pressurizing a source of liquid nitrogen and vaporizing at least a portion of the pressurized liquid nitrogen. The resulting high pressure gaseous nitrogen stream is introduced to at least one bottom reboiler/condenser of a high purity liquid oxygen unit, which also purifies standard grade liquid oxygen into ultra high purity liquid oxygen. The gaseous nitrogen provides the needed heat to the distillation columns of the high purity liquid oxygen unit. The condensed nitrogen is subsequently delivered to at least one top reboiler/condenser of the high purity liquid oxygen unit to provide refrigeration to the unit, and at the same time forming gaseous nitrogen which is then introduced to a nitrogen purification unit. The following streams are withdrawn from the unit: (a) ultra high purity liquid oxygen; (b) an argon-enriched waste stream; (c) a hydrocarbon-enriched waste stream. The oxygen purification portion of the method of the present invention can be accomplished on a portable skid, which includes primarily tanks, distillation columns, and heat exchangers, but no pumps or compressors.

    摘要翻译： 一种从标准级液氧生产超高纯度液氧的方法，其通过利用液氮的冷凝负荷将氧气净化过程与氮气净化过程相结合，从而使氮气蒸发，这在氮气净化之前是理想的 单元。 本发明的方法包括加压液氮源并蒸发至少一部分加压液氮。 将所得的高压气态氮气流引入到高纯度液氧单元的至少一个底部再沸器/冷凝器，其也将标准级液氧气纯化成超高纯度液氧。 气态氮为高纯度液氧单元的蒸馏塔提供所需的热量。 随后将冷凝的氮气输送到高纯度液氧单元的至少一个顶部再沸器/冷凝器，以向该单元提供制冷，同时形成氮气，然后将其导入氮气净化单元。 从单元中取出以下物流：（a）超高纯度液氧; （b）富氩废物流; （c）富含烃的废物流。 本发明方法的氧气净化部分可以在便携式防滑装置上实现，其主要包括罐，蒸馏塔和热交换器，但不包括泵或压缩机。

    Process and installation for the production of gaseous oxygen under pressure
    76.
    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：US5596885A

    公开(公告)日：1997-01-28

    申请号：US419555

    申请日：1995-04-10

    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 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/04054 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04145 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2215/52 ,  F25J2215/54 ,  F25J2290/62 ,  Y10S62/913

    摘要： An air separation process of the "pumped" type, in which liquid oxygen is removed from a double distillation column and is pumped to a higher production pressure and then vaporized under that pressure. The incoming air is divided into several streams. A first stream is compressed to the medium pressure, cooled and sent to the double distillation column (7). A second stream is compressed above about 25 bars, but below its condensation pressure during vaporization of the liquid oxygen under pressure, then cooled to an intermediate temperature, at which a portion of the air continues its cooling and is liquified (in 20A), then expanded (in 21A) and sent to the double column, while the rest is work expanded (in 4). Use in large size installations for the production of oxygen.

    摘要翻译： “泵送”型的空气分离过程，其中液体氧从双蒸馏塔中除去并被泵送到较高的生产压力，然后在该压力下蒸发。 进入的空气被分成几个流。 将第一流压缩至中压，冷却并送至双蒸馏塔（7）。 第二流在压力下在液体氧气蒸发期间被压缩在约25巴以上，但低于其冷凝压力，然后冷却至中间温度，在该温度下，一部分空气继续冷却并液化（以20A计） 扩展（在21A）并发送到双列，而其余的工作扩展（在4）。 用于大型安装用于生产氧气。

    Process and installation for the production of gaseous oxygen under pressure at a variable flow rate
    77.
    发明授权
    Process and installation for the production of gaseous oxygen under pressure at a variable flow rate 失效
    用于以可变流量在压力下生产气态氧的过程和安装

    公开(公告)号：US5526647A

    公开(公告)日：1996-06-18

    申请号：US424633

    申请日：1995-04-19

    申请人： Maurice Grenier

    发明人： Maurice Grenier

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

    CPC分类号： F25J3/0409 ,  F25J3/04175 ,  F25J3/04236 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04509 ,  Y10S62/913

    摘要： In a process for the production of gaseous oxygen under pressure at a variable flow rate, of the type in which air is distilled in an air distillation installation comprising a distillation apparatus (7) and a heat exchange line (6) to cool the air by heat exchange with the products from the distillation apparatus; liquid oxygen is withdrawn from this apparatus, brought to a vaporization pressure, vaporized and reheated under this pressure in the heat exchange line, this vaporization and this reheating being accompanied by a liquefaction of air in the air liquefaction passages (21; 21,21A) of the heat exchange line. During a reduction of the demand for gaseous oxygen under pressure, relative to the nominal flow rate, excess oxygen produced by the distillation apparatus is withdrawn from this apparatus, in liquid phase, sent to a receptacle (11) for the storage of liquid oxygen, and there is introduced into the distillation apparatus (7) a previously stored (in 13) corresponding additional quantity of liquid air; and during an increase in the demand for gaseous oxygen under pressure relative to the nominal flow rate, the required excess oxygen is withdrawn, in liquid phase, from the liquid oxygen storage receptacle (11), brought (in 12) to the vaporization pressure, and vaporized under this pressure (in 18) in the heat exchange line (6), and there is stored a corresponding quantity of air liquefied by said vaporization, in the liquid air storage receptacle. The liquid oxygen is stored under a pressure in the neighborhood of atmospheric pressure, while the liquid air is stored under a storage pressure substantially greater than the highest operating pressure of the distillation apparatus.

    摘要翻译： 在用于在可变流量的压力下生产气态氧气的方法中，在包括蒸馏装置（7）和热交换管线（6）的空气蒸馏设备中蒸馏空气的方式，以通过 与蒸馏装置的产品进行热交换; 液体氧从该装置中排出，在热交换管线中在该压力下被蒸发并蒸发并再加热，这种蒸发和这种再加热伴随着空气液化通道（21; 21,21A）中的空气液化， 的热交换线。 在降低对压力下的气态氧的需求相对于标称流量的情况下，蒸馏装置产生的过量的氧气从该装置中以液相的形式被送到用于储存液氧的容器（11） 并在蒸馏装置（7）中引入预先储存（相当于13）相应的附加量的液体空气; 并且在相对于标称流量的压力下对气态氧的需求增加期间，所需的过量氧气以液相从液体储氧容器（11）中排出，使（蒸气压）达到12， 并在该热交换管线（6）内的该压力（18度）下蒸发，并且在液体空气存储容器中存储有通过所述蒸发液化的相应量的空气。 液体氧在大气压附近的压力下储存，而液体空气在基本上大于蒸馏装置的最高工作压力的储存压力下储存。

    Process and installation for the separation of air
    78.
    发明授权
    Process and installation for the separation of air 失效
    空气分离的过程和安装

    公开(公告)号：US5437160A

    公开(公告)日：1995-08-01

    申请号：US230521

    申请日：1994-04-20

    申请人： Bernard Darredeau ,  Jean-Yves Lehman ,  Jean-Marc Peyron

    发明人： Bernard Darredeau ,  Jean-Yves Lehman ,  Jean-Marc Peyron

    IPC分类号： C21C5/28 ,  F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/0449 ,  C21C5/28 ,  C21C5/285 ,  F25J3/0409 ,  F25J3/04303 ,  F25J3/04351 ,  F25J3/04357 ,  F25J3/04412 ,  F25J3/04545 ,  F25J3/04563 ,  F25J3/04575 ,  F25J3/04593 ,  F25J3/046 ,  F25J3/04606 ,  F25J3/04793 ,  F25J3/04896 ,  F25J3/04927 ,  F25J2240/80 ,  Y02E20/16 ,  Y02E20/18 ,  Y02P10/34 ,  Y10S62/913 ,  Y10S62/915

    摘要： A process and installation for the separation of air in a cryogenic distillation apparatus (24) comprising a distillation column (30, 42) and in which the supplied air is separated to produce a fraction rich in oxygen and a fraction rich in nitrogen as products. The purities of these products are maintained substantially constant during variations of demand of either product or of the flow rate or of the pressure of the supplied air by introducing an excess of liquid rich in nitrogen into the distillation apparatus when the demand for the product or the flow rate of the supplied air increases, and by withdrawing an excess of liquid rich in nitrogen from the distillation apparatus, and storing this liquid, when the demand for the product or the flow rate of the supplied air decreases. The apparatus comprises a medium pressure column (30) and a low pressure column (42) and a reflux conduit (44; 11, 12) which permits a reflux liquid to be withdrawn from the medium pressure column (30) and to be injected into the low pressure column (42).

    摘要翻译： 一种用于在包含蒸馏塔（30,42）的低温蒸馏装置（24）中分离空气的方法和装置，其中供应的空气被分离以产生富含氧的馏分和富含氮的馏分作为产物。 当产品或产品的需求或对产品的需求或对产品的需求或供应空气的压力的变化时，这些产品的纯度通过将富含氮的过量的液体引入蒸馏装置中而保持基本恒定 供给空气的流量增加，并且通过从蒸馏装置中抽出多余的富含氮气的液体，并且当对产品的需求或供给的空气的流量减少时，储存该液体。 该装置包括中压塔（30）和低压塔（42）和回流导管（44; 11,12），其允许回流液体从中压塔（30）中取出并注入 低压塔（42）。