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    METHOD AND DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION IN ORDER TO PRODUCE NITROGEN GAS
    2.
    发明申请
    METHOD AND DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION IN ORDER TO PRODUCE NITROGEN GAS 审中-公开
    通过低温蒸馏分离空气以便生产氮气的方法和装置

    公开(公告)号：WO2015052444A3

    公开(公告)日：2016-01-14

    申请号：PCT/FR2014052565

    申请日：2014-10-09

    申请人： AIR LIQUIDE

    发明人： COGNARD MARIE ,  DUBETTIER-GRENIER RICHARD

    IPC分类号： F25J3/04 ,  B01D53/04 ,  B01D53/26

    CPC分类号： F25J3/04181 ,  B01D53/04 ,  B01D53/261 ,  B01D53/265 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2256/10 ,  B01D2257/104 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2258/06 ,  F25J3/04563 ,  F25J3/04569 ,  F25J2205/60 ,  F25J2215/02 ,  F25J2220/44 ,  F25J2245/42 ,  F25J2270/90 ,  Y02C10/08

    摘要： A device for separating air by cryogenic distillation comprises a cleaning unit (El) in which the air (1) is cleaned in water and in carbon dioxide, a cryogenic distillation unit (ASU), means for sending the air (3) cleaned in the cleaning unit to the cryogenic distillation unit in order to be separated, means for removing at least a first nitrogen-rich gas flow (5, 7, 11) from the distillation unit, means for sending at least a portion (11) of the nitrogen-rich gas flow to the cleaning unit to act as a regeneration gas for the cleaning unit, in order to form a wet gas flow (15), a heat exchanger (R3) for cooling the wet gas flow, a drying unit (E2), a pipe for sending the cooled gas flow from the heat exchanger to the drying unit in order to remove the water that has not been discharged by condensation, and a pipe for removing a nitrogen-rich gas flow cleaned in water (19) from the drying unit.

    摘要翻译： 一种通过低温蒸馏分离空气的设备包括：清洁单元（E1），其中空气（1）在水和二氧化碳中清洁;低温蒸馏单元（ASU）;用于将空气（3） 清洁单元连接到低温蒸馏单元以便被分离，用于从蒸馏单元中除去至少第一富氮气流（5,7,11）的装置，用于将至少一部分（11）氮气 为了形成湿气流（15），用于冷却湿气流的热交换器（R3），干燥单元（E2）和干燥单元（E2），向清洁单元提供富含气体的气流作为清洁单元的再生气体， ，用于将来自热交换器的冷却气流送入干燥单元以除去未被冷凝排出的水的管道以及用于将在水（19）中清洁的富氮气流从 干燥单元。