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    METHOD FOR SEPARATING AIR BY MEANS OF CRYOGENIC DISTILLATION
    11.
    发明申请
    METHOD FOR SEPARATING AIR BY MEANS OF CRYOGENIC DISTILLATION 审中-公开
    通过低温蒸馏分离空气的方法

    公开(公告)号：US20140013798A1

    公开(公告)日：2014-01-16

    申请号：US14004264

    申请日：2012-03-21

    申请人： Patrick Le Bot

    发明人： Patrick Le Bot

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04 ,  F25J3/04054 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04181 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04478 ,  F25J2205/72

    摘要： In an air-distillation method, purified air is cooled in an exchange line and then sent to a distillation column of a system of columns, and oxygen- and nitrogen-rich fluids are extracted from a column of the system of columns only during the repressurization phase. A purified airflow, constituting between 3% and 20% of the air compressed in the compressor, is used to at least partially pressurize the adsorber completing the regeneration phase thereof, and the airflow compressed in the compressor during the adsorption phase is substantially equal to the airflow compressed in the compressor during the pressurization of the adsorber. A portion of the purified air is sent to a turbine where it is decompressed and then sent into the atmosphere an as to ensure that it is kept at least partially cold during the entire cycle, and the amount of decompressed airflow sent into the air during the pressurization of an adsorber is less than the amount sent into the air during the adsorption phase of the same adsorber.

    摘要翻译： 在空气蒸馏方法中，纯化空气在交换管线中冷却，然后送入柱系统的蒸馏塔，仅在再加压期间从柱系统的塔中提取富氧和富氮流体 相。 构成在压缩机中压缩的空气的3％至20％之间的净化空气流被用于对完成其再生阶段的吸附器进行至少部分加压，并且在吸附阶段期间在压缩机中压缩的气流基本上等于 在吸附器加压期间在压缩机中压缩的气流。 净化空气的一部分被送到涡轮机进行减压，然后送入大气中以确保在整个循环期间将其保持在至少部分冷，并且在该循环期间将减压气流量送入空气 吸附器的加压小于在同一吸附器的吸附阶段期间送入空气的量。

    Method for Regulating a Series of Apparatus for Separating Air by Cryogenic Distillation and Series of Apparatus for Separating Air Operating According to Said Method
    12.
    发明申请
    Method for Regulating a Series of Apparatus for Separating Air by Cryogenic Distillation and Series of Apparatus for Separating Air Operating According to Said Method 审中-公开
    用于调节一系列用于通过低温蒸馏分离空气的装置的方法和根据所述方法分离空气操作的一系列装置

    公开(公告)号：US20090038337A1

    公开(公告)日：2009-02-12

    申请号：US12162500

    申请日：2007-01-18

    申请人： Jean-Francois Rauch

    发明人： Jean-Francois Rauch

    IPC分类号： F25J3/04 ,  B01D53/047

    CPC分类号： B01D53/047 ,  B01D53/0438 ,  B01D2256/10 ,  B01D2256/12 ,  B01D2256/16 ,  B01D2256/20 ,  B01D2256/245 ,  B01D2257/80 ,  B01D2259/40001 ,  B01D2259/40013 ,  B01D2259/4009 ,  B01D2259/402 ,  B01D2259/404 ,  B01D2259/416 ,  F25J3/0409 ,  F25J3/04181 ,  F25J3/04527 ,  F25J3/04775 ,  F25J3/04951 ,  F25J3/04957 ,  F25J2205/72

    摘要： In a method for regulating a series of apparatus for separating air by cryogenic distillation, the series comprising N air separation apparatus (1, 2, 3, 4), where N>1, an air gas having substantially the same composition is sent from the N apparatus to a consuming unit (5), each apparatus comprising a system of distillation columns (1B, 2B, 3B, 4B) and an air purification unit (1A, 2A, 3A, 4A) of the type in which at least two adsorbers are used, each, with a phase shift, following the same cycle in which an adsorption phase, at a high cycle pressure, and a regeneration phase with depressurization, succeed one another, terminating in a repressurization of the adsorber, the method comprising a step in which the adsorbers of a unit are placed in parallel, each apparatus having an adsorption cycle time and the operation of at least some of the purification units is regulated so that the repressurization step for one apparatus begins at a different time from the beginning of the repressurization for another apparatus.

    摘要翻译： 在通过低温蒸馏调节一系列用于分离空气的装置的方法中，包括N个空气分离装置（1,2,3,4）的系列，其中N≥1，具有基本上相同组成的空气气体从 N装置到消耗单元（5），每个装置包括蒸馏塔（1B，2B，3B，4B）和空气净化单元（1A，2A，3A，4A）的系统，其中至少两个吸附器 各自使用相移，在相同的循环中，在相同的循环中，在高循环压力下的吸附相和具有减压的再生阶段相互成功，终止于吸附器的再加压，该方法包括步骤 其中单元的吸附器平行放置，每个装置具有吸附循环时间，并调节至少一些净化单元的操作，使得一个装置的再加压步骤开始于与 压抑 为另一种设备。

    Operation of a cryogenic air separation unit which intermittently uses air feed as the repressurization gas for a two bed PSA system
    20.
    发明授权
    Operation of a cryogenic air separation unit which intermittently uses air feed as the repressurization gas for a two bed PSA system 失效
    间歇地使用空气进料作为双床PSA系统的再加压气体的低温空气分离单元的运行

    公开(公告)号：US6073463A

    公开(公告)日：2000-06-13

    申请号：US169224

    申请日：1998-10-09

    申请人： David Miller Espie

    发明人： David Miller Espie

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04793 ,  F25J3/04181 ,  F25J3/04412 ,  F25J3/04848 ,  F25J2205/64 ,  F25J2205/72

    摘要： The present invention concerns a cryogenic air separation process which intermittently diverts a portion of the air feed as repressurization gas for a front-end two bed pressure swing adsorption adsorption system which system is used to remove impurities from the air feed. In particular, the present invention is an improvement to said process for at least partially eliminating reductions in the purity of the product streams from the air separation unit caused by the intermittent diversions of the air feed as repressurization gas. The improvement comprises reducing the flow of both the nitrogen-enriched waste stream and the crude liquid oxygen stream from the air separation unit during those intermittent periods when repressurization gas is required in the pressure swing adsorption system.

    摘要翻译： 本发明涉及一种低温空气分离方法，其间歇性地将一部分空气进料作为再加压气体，用于前端两床变压吸附系统，该系统用于从空气进料中除去杂质。 特别地，本发明是对所述方法的改进，所述方法至少部分地消除了由作为再加压气体的空气进料的间歇转移引起的空气分离单元的产物流的纯度的降低。 改进包括在变压吸附系统中需要再加压气体的那些间歇期期间减少来自空气分离单元的富氮废物流和粗液氧流的流动。