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    VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG VON GASFÖRMIGEM DRUCKSAUERSTOFF MIT VARIABLEM ENERGIEVERBRAUCH
    82.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR ERZEUGUNG VON GASFÖRMIGEM DRUCKSAUERSTOFF MIT VARIABLEM ENERGIEVERBRAUCH 审中-公开
    方法和装置产生气体加压给氧，具有可变功率消耗

    公开(公告)号：EP2979051A2

    公开(公告)日：2016-02-03

    申请号：EP14714174.1

    申请日：2014-03-27

    申请人： Linde AG

    发明人： GOLOUBEV, Dimitri

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04418 ,  F25B2313/0314 ,  F25B2313/0315 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25J3/0409 ,  F25J3/04254 ,  F25J3/04296 ,  F25J3/04375 ,  F25J3/04412 ,  F25J3/04496 ,  F25J3/04957 ,  F25J2205/04 ,  F25J2210/40 ,  F25J2210/50 ,  F25J2215/54 ,  F25J2230/24 ,  F25J2230/40 ,  F25J2240/42

    摘要： The invention relates to a method and to a device for the variable production of compressed oxygen by means of low-temperature separation of air in a distillation column system which comprises a high-pressure column (5) and a low-pressure column (6). Process air in form of a total air stream (1) is cooled in a main heat exchanger (3). At least a part of the cooled process air is fed into the high-pressure column (5). A first oxygen stream (35) from the low-pressure column (6) is brought to an elevated pressure (36) in a liquid state, is vaporized, or pseudo-vaporized, and heated in the main heat exchanger (3), and is finally obtained as a gaseous compressed oxygen product. Prior to entering the main heat exchanger (3), a first and a second partial stream (12) of the process air are brought to a high pressure (9, 10), which is at least 4 bars higher than the operating pressure of the high-pressure column (5). The first partial stream is liquefied, or pseudo-liquefied, in the main heat exchanger (3), and is subsequently introduced into the distillation column system (14). The second partial stream (16) is expanded to perform work (17), and is subsequently introduced into the distillation column system (4). In a first operating mode, a first total air quantity is cooled in the main heat exchanger (3), and a first turbine amount as first partial stream (16) is fed to the expansion to perform work. In a second operating mode, a second oxygen stream (46) from an external source outside the distillation column system is introduced into the low-pressure column (6) in a liquid state. There is less total air (1) cooled in the main heat exchanger (3), and less air is fed to the expansion (17) to perform work than in the first operating mode.

    Methods and systems for optimizing argon recovery in an air separation unit
    87.
    发明公开
    Methods and systems for optimizing argon recovery in an air separation unit 审中-公开
    Verfahren und Vorrichtung zur Optimierung der Argonausbeute in einer Luftzerlegungsanlage

    公开(公告)号：EP1522808A1

    公开(公告)日：2005-04-13

    申请号：EP04077708.8

    申请日：2004-10-04

    申请人： L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude

    发明人： Seiver, David S. ,  Swafford, Scott A.

    IPC分类号： F25J3/04 ,  G05B13/04

    CPC分类号： F25J3/048 ,  F25J3/04254 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04848 ,  F25J2210/42 ,  G05B13/048 ,  Y10S62/924

    摘要： A cryogenic air separation system that optimizes the recovery of argon includes an air intake (110), a high-pressure distillation column (120), a low-pressure distillation column (122), a crude argon distillation column (129), and a controller that automatically controls the composition of the raw argon stream to decrease the concentration of oxygen in the stream while preventing the concentration of nitrogen in the crude argon stream from exceeding a selected value. In addition, the controller also controls the composition of the crude argon stream until an oxygen concentration of the crude argon stream reaches a selected value. The controller may include a multivariable predictive controller.

    摘要翻译： 优化氩气回收的低温空气分离系统包括进气口（110），高压蒸馏塔（120），低压蒸馏塔（122），粗氩蒸馏塔（129）和 控制器，其自动控制原始氩气流的组成以降低流中的氧浓度，同时防止粗氩气流中的氮浓度超过选定值。 此外，控制器还控制粗氩气流的组成，直到粗氩流的氧浓度达到选定值。 控制器可以包括多变量预测控制器。

    Air separation method to produce gaseous product at a variable flow rate
    88.
    发明公开
    Air separation method to produce gaseous product at a variable flow rate 审中-公开
    Luftzerlegungsverfahren zur产品vongasförmigem产品名称变量标签商Durchflussmenge

    公开(公告)号：EP1318368A1

    公开(公告)日：2003-06-11

    申请号：EP01310298.3

    申请日：2001-12-10

    申请人： THE BOC GROUP, INC.

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

    IPC分类号： F25J3/04

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

    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 vaporised 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循环需求模式来生产气体产物的方法，例如气态氧。 在需求高的时期，液体被蒸发成冷凝空气，冷凝空气又被储存。 在低需求期间，产品积累，预先储存的液体空气被引入塔中。 在需求高低期间，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，在高需求期间，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量以及液体产物的生产减少。