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    Air separation
    1.
    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 A stream of oxygen-enriched liquid is withdrawn from the bottom of the higher pressure column through an outlet and is separated in the intermediate pressure rectification column. The reboiler is heated by a stream typically withdrawn from the side rectification column through an outlet thereof.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
    2.
    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 separation
    3.
    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。

    Air separation
    4.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5819556A

    公开(公告)日：1998-10-13

    申请号：US924238

    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 (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 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. A stream of liquid is withdrawn from the bottom of the intermediate pressure rectification column, is employed to cool the further condenser of the intermediate pressure rectification column, and is partially vaporised therein. A stream of residual liquid flows from such further condenser and is used to cool the condenser of the side rectification column.

    摘要翻译： 在包括双精馏塔（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的精馏塔排列中分离空气。 侧面精馏塔设有冷凝器，中压精馏塔具有再沸器和另外的冷凝器。 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。 再沸器通过通常从侧面精馏塔排出的流经出口加热。 从中压精馏塔的底部取出液流，冷却中压精馏塔的另一冷凝器，并在其中部分汽化。 残余液体流从这种另外的冷凝器流出，并用于冷却侧面精馏塔的冷凝器。

    Air separation
    6.
    发明授权
    Air separation 失效
    空气分离

    公开(公告)号：US5657644A

    公开(公告)日：1997-08-19

    申请号：US619023

    申请日：1996-03-20

    申请人： John Douglas Oakey ,  Paul Higginbotham

    发明人： John Douglas Oakey ,  Paul Higginbotham

    IPC分类号： F25J3/04

    CPC分类号： F25J3/042 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04448 ,  F25J3/04709 ,  F25J3/04872 ,  F25J2200/50 ,  F25J2200/54 ,  F25J2215/56 ,  F25J2235/58 ,  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 vapour flows from the lower pressure rectification column into a side column in which argon is separated therefrom. An oxygen-enriched liquid air stream is taken from the bottom of the higher pressure rectification column. A vaporous oxygen-enriched air stream is introduced into the lower pressure rectification column above the point at which argon-enriched oxygen vapour is removed. At least part of the oxygen-enriched liquid is partially reboiled in a reboiler and is separated in a further rectification column, thereby to form a vapour 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 vapour that is introduced into the lower pressure rectification column. A part of the oxygen-depleted vapour is condensed 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 stream of argon-enriched oxygen vapour withdrawn from the outlet, or in an alternative process with a stream withdrawn from an intermediate region of the side 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流入其中氩与其分离的侧塔。 从高压精馏塔的底部取出富氧液体空气流。 将富氧的富氧空气流引入低压精馏塔上方，除去富氩氧蒸气。 至少部分富氧液体在再沸器中部分再沸腾，并在另一精馏塔中分离，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。 一部分贫氧蒸汽被冷凝并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出口排出的富氩氧气流的间接热交换或在从侧塔的中间区域中取出的物流的替代方法中进行。

    Method and apparatus for separating air to produce an oxygen product
    9.
    发明授权
    Method and apparatus for separating air to produce an oxygen product 失效
    用于分离空气以产生氧产物的方法和装置

    公开(公告)号：US06178775B2

    公开(公告)日：2001-01-30

    申请号：US09182981

    申请日：1998-10-30

    申请人： Paul Higginbotham ,  Joseph P. Naumovitz

    发明人： Paul Higginbotham ,  Joseph P. Naumovitz

    IPC分类号： F25J300

    CPC分类号： F25J3/042 ,  F25J3/0406 ,  F25J3/0409 ,  F25J3/04303 ,  F25J3/04351 ,  F25J3/04424 ,  F25J2200/90 ,  F25J2240/44 ,  F25J2250/20

    摘要： A method and apparatus of separating air to produce an oxygen product. In accordance with the method and apparatus the air is rectified within a double column arrangement. The lower pressure column has lower and intermediate reboilers. Nitrogen from the higher pressure column is compressed and sent to the lower reboiler and oxygen tower overhead from the higher pressure column is fed to the intermediate reboiler. The resultant liquid is used to reflux both columns. The advantages in the arrangement set forth above is that the higher pressure column may be made to operate at a lower pressure to conserve energy.

    摘要翻译： 一种分离空气以产生氧产物的方法和装置。 根据方法和装置，空气在双列排列中被整流。 低压塔具有较低和中等重沸器。 将来自较高压力塔的氮气压缩并送入下部再沸器，将来自较高压力塔的塔顶塔架送入中间再沸器。 所得液体用于回流两个柱。 上述布置中的优点是可以使较高压力塔在较低压力下操作以节省能量。

    Separation of air
    10.
    发明授权
    Separation of air 失效
    空气分离

    公开(公告)号：US06082137A

    公开(公告)日：2000-07-04

    申请号：US274745

    申请日：1999-03-23

    申请人： Paul Higginbotham

    发明人： Paul Higginbotham

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

    CPC分类号： F25J3/04212 ,  F25J3/04193 ,  F25J3/04284 ,  F25J3/04412 ,  F25J3/0443 ,  F25J2200/20 ,  F25J2200/54 ,  F25J2205/02 ,  F25J2215/50 ,  F25J2250/40 ,  F25J2250/52

    摘要： A double rectification column air separation method and apparatus in which a stream of oxygen-enriched liquid air from a higher pressure rectification column is at least partially vaporized in indirect heat exchange with a stream of purified, compressed, gaseous air. The stream of purified, compressed air is condensed and a stream of the resulting vapor after having been warmed is expanded in a turbine with the performance of external work. After expansion, the resulting vapor is introduced into the lower pressure rectification column and a stream of the resulting condensed air is introduced into the higher pressure column at an intermediate mass exchange level thereof.

    摘要翻译： 双精馏塔空气分离方法和装置，其中来自高压精馏塔的富氧液体空气流与纯化的，压缩的气态空气流间接热交换至少部分蒸发。 净化的压缩空气流被冷凝，并且经过加热后所得蒸气的流在外部工作的表现下在涡轮机中膨胀。 膨胀后，将所得蒸气引入低压精馏塔中，将所得冷凝空气流以其中间质量交换水平引入高压塔。