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    • 3. 发明专利
    • Air liquefied separation method and device
    • 空气液化分离方法和装置
    • JP2012083058A
    • 2012-04-26
    • JP2010231090
    • 2010-10-14
    • Taiyo Nippon Sanso Corp大陽日酸株式会社
    • IRISAWA MAKOTO
    • F25J3/04
    • F25J3/04412F25J3/0409F25J3/04193F25J3/042F25J3/04303F25J3/04678F25J3/04703
    • PROBLEM TO BE SOLVED: To provide an air liquefied separation method and device of an internal boosting process which can improve product yield even when suppressing the rising of a device cost.SOLUTION: The air liquefied separation method includes: a step in which the middle-pressure air which is boosted and refined is divided into three flows of first middle-pressure raw material air, second middle-pressure raw material air and third middle pressure raw material air, the first middle-pressure raw material air is cooled with a main thermal exchanger and the cooled first middle-pressure raw material air is introduced into a middle-pressure tower; a step in which the second middle-pressure raw material air is boosted to make high-pressure raw material air, the high-pressure raw material air is cooled by the main thermal exchanger, thereafter, is depressurized and the depressurized raw material air is introduced into the middle-pressure tower; a step in which the third middle-pressure raw material air is boosted, thereafter, is cooled to an intermediate temperature with the main thermal exchanger and, thereafter, is expanded into a higher temperature than the boiling point of the middle-pressure liquefied oxygen by an expansion turbine to make low-pressure raw material air, and the low-pressure raw material air is cooled by the main thermal exchanger and then is introduced to a low-pressure tower; a step in which the liquefied oxygen drawn out from the low-pressure tower is boosted by a liquefied oxygen pump to make middle-pressure oxygen and the middle-pressure oxygen is gasified by the main thermal exchanger to make middle-pressure product oxygen gas; and a step in which the gas drawn out from the low-pressure tower is vaporized by an argon tower to make product argon.
    • 要解决的问题:提供一种空气液化分离方法和内部增压方法的装置,其即使在抑制装置成本上升的情况下也可以提高产量。 解决方案:空气液化分离方法包括:将升压精制的中压空气分为第一中压原料空气,第二中压原料空气和第三中间体的三个流的步骤 压缩原料空气,第一中压原料空气用主热交换器冷却,冷却的第一中压原料空气引入中压塔; 第二中压原料空气被升压以制造高压原料空气的步骤,高压原料空气被主热交换器冷却,然后减压,并将减压的原料空气引入 进入中压塔; 其中第三中压原料空气被升压的步骤之后,通过主热交换器冷却至中间温度,然后通过下述步骤膨胀到比中压液化氧的沸点高的温度 用于制造低压原料空气的膨胀涡轮机,低压原料空气由主热交换器冷却,然后被引入低压塔; 将由低压塔引出的液化的氧气由液化氧气泵升压成中压氧,中压氧由主热交换器气化,制成中压产物氧气的工序; 以及从低压塔抽出的气体被氩塔蒸发以产生氩气的步骤。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Method and device for manufacturing argon
    • 制造ARGON的方法和装置
    • JP2010210104A
    • 2010-09-24
    • JP2009053637
    • 2009-03-06
    • Taiyo Nippon Sanso Corp大陽日酸株式会社
    • EKOSHI NOBUAKITACHIBANA HIROSHIISHIZAKI KAZUTOSHI
    • F25J3/04C01B23/00F25J3/02
    • F25J3/04672F25J3/04303F25J3/0463F25J2200/04F25J2215/58F25J2245/02
    • PROBLEM TO BE SOLVED: To enhance a recovery rate of argon, and to prevent a yield of oxygen and nitrogen from being affected by the enhancement when manufacturing argon in a cryogenic air separation method.
      SOLUTION: A heat exchange type distiller 19 is arranged in the middle of a low pressure distilling tower, and in an air distilling passage 20 of the heat exchange type distiller 19, second oxygen-enriched liquefied air made to flow down from an upper low pressure tower 15 and first oxygen-enriched gas lifted from a lower low pressure tower 10 are distilled by using heat applied from an argon distilling passage 21. Second oxygen-enriched gas separated to a top of the air distilling passage 20 is supplied to the upper low pressure tower 15, and third oxygen-enriched liquefied air separated to a bottom of the air distilling passage 20 is supplied to the lower low pressure tower 10 as flowing-down liquid. In the argon distilling passage 21, argon-enriched gas introduced from a top of a crude argon tower 23 is condensed and distilled by heat deprived by the air distilling passage 20. Argon gas concentrated in a top of the argon distilling passage 21 is taken, and crude liquid argon from a bottom of the argon distilling passage 21 is returned to the top of the crude argon tower 23 to become reflux liquid.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 待解决的问题:在低温空气分离方法中制造氩时,为了提高氩的回收率,并且防止氧和氮的产率受到增强的影响。 解决方案:热交换式蒸馏器19布置在低压蒸馏塔的中间,并且在热交换式蒸馏器19的空气蒸馏通道20中,使第二富氧液化空气从 通过使用从氩蒸馏通道21施加的热来蒸馏上低压塔15和从低低压塔10提升的第一富氧气体。将分离到空气蒸馏通道20的顶部的第二富氧气体供应到 分离到空气蒸馏通道20的底部的上低压塔15和第三富氧液化空气作为下降液体供应到下低压塔10。 在氩气蒸馏通道21中,从粗氩塔23的顶部导入的富氩气体被空气蒸馏通道20所吸收的热量冷凝和蒸馏。收集集中在氩蒸馏通道21顶部的氩气, 并且来自氩蒸馏通道21的底部的粗液氩返回到粗氩塔23的顶部,成为回流液体。 版权所有(C)2010,JPO&INPIT