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    • 135. 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