VERFAHREN ZUR TIEFTEMPERATURZERLEGUNG VON LUFT UND LUFTZERLEGUNGSANLAGE

    公开(公告)号:EP3175192A1

    公开(公告)日:2017-06-07

    申请号:EP15742185.0

    申请日:2015-07-28

    IPC分类号: F25J3/04

    摘要: What is proposed is a method for the cryogenic separation of air (AIR) in an air separation plant (100) having a main air compressor (2), a main heat exchanger (4) and a distillation column system (10) having a low-pressure column (11) operated at a first pressure and a high-pressure column (12) operated at a second pressure, in which a feed air flow (a), which comprises all of the feed air fed to the air separation plant (100, 200), is compressed in the main air compressor (2) to a third pressure that is at least 2 bar above the second pressure, wherein a first fraction (c) of the compressed feed air flow (b) is cooled at least once in the main heat exchanger (4) and is expanded from the third pressure in a first expansion turbine (5), a second fraction (d) is cooled at least once in the main heat exchanger (4) and is expanded from the third pressure in a second expansion turbine (6), and a third fraction (e) is further compressed to a fourth pressure, is cooled at least once in the main heat exchanger (4) and is expanded from the fourth pressure, wherein air of the first fraction (c) and/or of the second fraction (d) and/or of the third fraction (e) is fed into the distillation column system (10) at the first and/or at the second pressure. It is provided that the third fraction (e) is further compressed to the fourth pressure in sequence in a recompressor (7), a hot first turbine booster and a second turbine booster, and for expanding the third fraction (e) use is made of a dense fluid expander (8) to which the third fraction (e) is fed in the liquid state and at the fourth pressure. The invention also relates to an air separation plant (100).

    摘要翻译: 提出了一种用于在具有主空气压缩机(2),主热交换器(4)和蒸馏塔系统(10)的空气分离装置(100)中低温分离空气(AIR)的方法, - 在第一压力下操作的压力塔(11)和在第二压力下操作的高压塔(12),其中供给空气分离装置( 在所述主空气压缩机(2)中被压缩至比所述第二压力高至少2巴的第三压力,其中所述压缩的供给空气流(b)的第一部分(c)至少被冷却 一旦在主热交换器(4)中并且从第一膨胀涡轮机(5)中的第三压力膨胀,则第二馏分(d)在主热交换器(4)中被冷却至少一次并且从第三膨胀涡轮机 在第二膨胀涡轮机(6)中的压力,并且第三部分(e)被进一步压缩到第四压力,在m中被冷却至少一次 (4)并且从第四压力膨胀,其中将第一馏分(c)和/或第二馏分(d)和/或第三馏分(e)的空气供入蒸馏塔系统 (10)在第一和/或第二压力下进行。 规定第三部分(e)在再压缩机(7),热的第一涡轮增压器和第二涡轮增压器中依次进一步压缩到第四压力,并且为了扩展第三部分(e),使用由 一个致密流体膨胀器(8),第三部分(e)以液态和第四压力供入该膨胀器中。 本发明还涉及一种空气分离装置(100)。

    NACHRÜSTBARE VORRICHTUNG ZUR TIEFTEMPERATURZERLEGUNG VON LUFT, NACHRÜSTANLAGE UND VERFAHREN ZUM NACHRÜSTEN EINER TIEFTEMPERATUR-LUFTZERLEGUNGSANLAGE
    4.
    发明公开
    NACHRÜSTBARE VORRICHTUNG ZUR TIEFTEMPERATURZERLEGUNG VON LUFT, NACHRÜSTANLAGE UND VERFAHREN ZUM NACHRÜSTEN EINER TIEFTEMPERATUR-LUFTZERLEGUNGSANLAGE 有权
    改型翻新装置低温空分,翻新的系统和方法用于改进低温空气分离系统

    公开(公告)号:EP2986924A1

    公开(公告)日:2016-02-24

    申请号:EP14715547.7

    申请日:2014-04-03

    IPC分类号: F25J3/04

    摘要: The retrofittable device for low-temperature separation of air comprises a distillation column system, which has a high-pressure column (3), a low-pressure column (4), and a first raw argon column (6). Said device comprises supply lines (101, 102) for connecting the first raw argon column (6) to a second raw argon column (41), wherein the supply lines pass through the outer wall of the first cold box (1), which encloses the high-pressure column (3), the low-pressure column (4), and the first raw argon column (6). The invention further relates to a retrofitting system, which comprises a second cold box (40), a second raw argon column (41), and corresponding supply lines (201 to 205), and to a method for retrofitting the device mentioned first.

    摘要翻译: 用于空气的低温分离的改装设备包括蒸馏塔系统,该系统具有高压塔(3),一个低压塔(4),和一个第一粗氩塔(6)。 所述装置包括电源线(101,102),用于在第一粗氩塔(6)连接到第二粗氩塔(41),worin供给线穿过所述第一冷箱的外壁(1),其包围 高压塔(3)中,低压塔(4),并且所述第一粗氩塔(6)。 本发明还涉及到一个改型的系统,它包括一个第二冷箱(40),第二粗氩塔(41),和相应的供应线(201〜205),以及用于改装第一提及的装置的方法。