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    CRYOGENIC SEPARATION METHOD AND APPARATUS
    2.
    发明申请
    CRYOGENIC SEPARATION METHOD AND APPARATUS 审中-公开
    低温分离方法和装置

    公开(公告)号：US20110192194A1

    公开(公告)日：2011-08-11

    申请号：US12704138

    申请日：2010-02-11

    申请人： Henry Edward Howard

    发明人： Henry Edward Howard

    IPC分类号： F25J3/04

    CPC分类号： F25J3/0409 ,  F25J3/04084 ,  F25J3/04187 ,  F25J3/042 ,  F25J3/04218 ,  F25J3/04236 ,  F25J3/04296 ,  F25J3/04387 ,  F25J3/04412 ,  F25J2240/10 ,  F25J2290/12

    摘要： A method and apparatus for separating a mixture, for example air, within a cryogenic rectification plant that utilizes a banked heat exchanger arrangement. In such arrangement, a lower pressure heat exchanger is used to cool part of the mixture and a higher pressure heat exchanger is used to heat one or more pumped liquid streams composed of separated nitrogen-rich and oxygen-rich fractions and thereby produce pressurized product streams. A boosted pressure stream, that can be part of the air, is utilized to supply most of the heat exchange duty in the higher pressure heat exchanger. In addition, a heat exchange stream, that can also be part of the mixture, can be partially cooled in the higher pressure heat exchanger and then further cooled in the lower pressure heat exchanger to decrease the warm end temperature difference of the higher pressure heat exchanger and therefore, the required refrigeration for the plant.

    摘要翻译： 一种在利用堆积式热交换器装置的低温精馏装置内分离混合物，例如空气的方法和装置。 在这种布置中，使用低压热交换器来冷却混合物的一部分，并且使用较高压力的热交换器来加热由分离的富氮和富氧馏分组成的一个或多个泵送液体流，从而产生加压产物流 。 可以使用可以作为空气的一部分的增压压力流来提供高压热交换器中的大部分热交换负荷。 此外，也可以是混合物的一部分的热交换流可以在高压热交换器中被部分冷却，然后在低压热交换器中进一步冷却，以降低高压热交换器的温末温度差 因此，为工厂所需的制冷。

    Process and apparatus for the production of low pressure gaseous oxygen
    4.
    发明授权
    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：US06539748B2

    公开(公告)日：2003-04-01

    申请号：US10059997

    申请日：2001-10-22

    申请人： Alan Lindsay Prentice ,  Rodney John Allam

    发明人： Alan Lindsay Prentice ,  Rodney John Allam

    IPC分类号： F25J100

    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 (“GOX”) 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 (“LOX”) 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。

    Process and apparatus for the production of low pressure gaseous oxygen
    5.
    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
    6.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5862680A

    公开(公告)日：1999-01-26

    申请号：US925810

    申请日：1997-09-05

    申请人： Paul Higginbotham ,  John Douglas Oakey

    发明人： Paul Higginbotham ,  John Douglas Oakey

    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 ,  F25J2200/50 ,  Y10S62/924

    摘要： Air is separated in an arrangement of rectification columns comprising a double rectification column having a higher pressure column and a lower pressure rectification column, an intermediate pressure rectification column, and a side rectification column communicating with the lower pressure column. The side rectification column is provided with a condenser and the intermediate pressure rectification column with a reboiler and a further condenser. A stream of oxygen-enriched liquid is withdrawn from the bottom of the higher pressure column through an outlet and is separated in the intermediate pressure rectification column. The reboiler is heated by a stream typically withdrawn from the side rectification column through an outlet thereof. The condensers of the side rectification column and the intermediate column are cooled by streams having different oxygen mole fractions.

    摘要翻译： 在具有高压塔和低压精馏塔，中压精馏塔和与低压塔连通的侧面精馏塔的双精馏塔的精馏塔排列中分离空气。 侧面精馏塔设有冷凝器和具有再沸器的中压精馏塔和另外的冷凝器。 富氧液体流通过出口从高压塔的底部排出，并在中压精馏塔中分离。 再沸器由通过其从侧面精馏塔通过其出口通常排出的流加热。 侧面精馏塔和中间塔的冷凝器由具有不同氧摩尔分数的物流冷却。

    Air separation
    7.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5852940A

    公开(公告)日：1998-12-29

    申请号：US932456

    申请日：1997-09-18

    申请人： Paul Higginbotham ,  John Douglas Oakey

    发明人： Paul Higginbotham ,  John Douglas Oakey

    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 ,  F25J2200/50 ,  Y10S62/924

    摘要： Air is separated in an arrangement of rectification columns comprising a double rectification column (which has a higher pressure column and a lower pressure column), an intermediate pressure rectification column and a side rectification column communicating with the lower pressure column. The side rectification column is provided with a condenser and the intermediate pressure rectification column with a reboiler and a condenser. A stream of oxygen-enriched liquid and a stream of liquid air are withdrawn from the higher pressure column through outlets and are separated in the intermediate pressure rectification column. The reboiler is heated by a stream typically withdrawn from the side rectification column through an outlet. A stream of liquid is withdrawn through an outlet at the bottom of the intermediate pressure rectification column is used to cool the condenser and is separated in the lower pressure rectification column. The mole fraction of oxygen in the stream withdrawn through the outlet is intermediate the oxygen mole fractions in the streams fed to the column via the outlets of the high pressure column.

    摘要翻译： 空气在精馏塔的排列中分离，该精馏塔包括双精馏塔（其具有较高压力塔和较低压力塔），中压精馏塔和与低压塔连通的侧面精馏塔。 侧面精馏塔设有冷凝器和具有再沸器和冷凝器的中压精馏塔。 富氧液体流和液体空气流通过出口从高压塔排出，并在中压精馏塔中分离。 再沸器通过通常从侧面精馏塔排出的流经出口加热。 通过中压精馏塔底部的出口排出液体流，用于冷却冷凝器，并在低压精馏塔中分离。 通过出口排出的物流中的氧的摩尔分数是通过高压塔的出口供入塔的料流中的氧摩尔分数的中间。

    Air seperation
    8.
    发明授权
    Air seperation 失效
    空气分离

    公开(公告)号：US5809802A

    公开(公告)日：1998-09-22

    申请号：US814559

    申请日：1997-03-11

    申请人： Thomas Rathbone

    发明人： Thomas Rathbone

    IPC分类号： F25J3/00 ,  F25J3/04 ,  F25J1/00

    CPC分类号： F25J3/042 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/0469 ,  F25J3/04703 ,  F25J3/04727 ,  F25J5/002 ,  F25J2235/50 ,  F25J2235/58 ,  F25J2290/32 ,  F25J2290/42 ,  Y10S62/924

    摘要： An air separation method and apparatus in which a flow of air is subjected to a first rectification so as to separate therefrom an oxygen fraction and a nitrogen fraction. An argon-containing stream comprising argon, oxygen, and, as an impurity, nitrogen is withdrawn from the first rectification and is subjected to a second rectification so as to separate an impure argon fraction containing nitrogen. Nitrogen impurity is stripped from a stream of the argon fraction in a stripping column. A stream of sub-cooled liquid cools a condenser associated with an upper region of the stripping column by indirect heat exchange with condensing argon-nitrogen vapor mixture, and passes out of said indirect heat exchange still in sub-cooled state.

    摘要翻译： 一种空气分离方法和装置，其中空气流经受一次精馏，从而分离出氧分数和氮气分数。 将包含氩气，氧气和氮气作为杂质的含氩物流从第一精馏中排出，并进行第二次精馏，以分离含有氮的不纯的氩馏分。 在汽提塔中从氩馏分流中除去氮杂质。 一个次冷的液体流通过与冷凝的氩 - 氮蒸汽混合物的间接热交换冷却与汽提塔的上部区域相连的冷凝器，并且在亚冷却状态下从所述的间接热交换出去。

    Air separation
    9.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5689975A

    公开(公告)日：1997-11-25

    申请号：US728517

    申请日：1996-10-09

    申请人： John Douglas Oakey ,  Paul Higginbotham

    发明人： John Douglas Oakey ,  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 ,  F25J2200/50 ,  Y10S62/924

    摘要： A stream of precooled and purified air is introduced into a double rectification column comprising a higher pressure rectification column and a lower pressure rectification column and is separated therein into an oxygen-rich fraction and a nitrogen-rich fraction. A stream of argon-enriched oxygen vapor flows from an outlet of the lower pressure rectification column into a side column in which argon is separated therefrom. An oxygen-enriched liquid air stream is taken from an outlet at the bottom of the higher pressure rectification column. A vaporous oxygen-enriched air stream is introduced into the lower pressure rectification column through an inlet above the outlet. At least part of the oxygen-enriched liquid is separated in a further or intermediate pressure rectification column provided with a reboiler, thereby forming a vapor depleted of oxygen and a liquid air stream further enriched in oxygen. At least one stream of the further-enriched liquid is vaporised to form the oxygen-enriched vapor that is introduced into the lower pressure rectification column. A part of the oxygen-depleted vapor is condensed in a condenser and is taken as product or reintroduced into the lower pressure rectification column. The partial reboiling in the reboiler is effected by indirect heat exchange with a vapor stream withdrawn from an intermediate region of the side column. The condenser is cooled by a stream of liquid withdrawn from the further rectification column.

    摘要翻译： 将预冷和纯化空气流引入包括高压精馏塔和低压精馏塔的双精馏塔中，并将其分离成富氧馏分和富氮馏分。 富氩氧蒸汽流从低压精馏塔的出口流入其中氩与其分离的侧塔。 从高压精馏塔底部的出口取出富氧液体空气流。 气体富氧空气流通过出口上方的入口引入低压精馏塔。 至少部分富氧液体在具有再沸器的进一步或中压精馏塔中分离，从而形成贫氧的蒸汽和进一步富氧的液态空气流。 将进一步富集的液体的至少一个气体蒸发以形成引入低压精馏塔的富氧蒸气。 一部分贫氧蒸气在冷凝器中冷凝，作为产物或重新引入低压精馏塔。 再沸器中的部分再沸腾通过与从侧塔的中间区域取出的蒸气流的间接热交换来实现。 冷凝器由从另一精馏塔排出的液体流冷却。