JPH03271685A - 空気液化分離方法及び装置 - Google Patents

空気液化分離方法及び装置

Info

Publication number
JPH03271685A
JPH03271685A JP279691A JP279691A JPH03271685A JP H03271685 A JPH03271685 A JP H03271685A JP 279691 A JP279691 A JP 279691A JP 279691 A JP279691 A JP 279691A JP H03271685 A JPH03271685 A JP H03271685A
Authority
JP
Japan
Prior art keywords
hydrogen
boiling point
nitrogen gas
low
fractionating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP279691A
Other languages
English (en)
Other versions
JPH0615947B2 (ja
Inventor
Takashi Tatsumi
辰巳　▲高▼司
Hideyuki Honda
秀幸 本田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Oxygen Co Ltd
Nippon Sanso Corp
Original Assignee
Japan Oxygen Co Ltd
Nippon Sanso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Oxygen Co Ltd, Nippon Sanso Corp filed Critical Japan Oxygen Co Ltd
Priority to JP279691A priority Critical patent/JPH0615947B2/ja
Publication of JPH03271685A publication Critical patent/JPH03271685A/ja
Publication of JPH0615947B2 publication Critical patent/JPH0615947B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
    • F25J2200/94—Details relating to the withdrawal point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/42—Nitrogen or special cases, e.g. multiple or low purity N2
    • F25J2215/44—Ultra high purity nitrogen, i.e. generally less than 1 ppb impurities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/42—Separating low boiling, i.e. more volatile components from nitrogen, e.g. He, H2, Ne

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】
［０００１）
【産業上の利用分野】
本発明は、水素、ヘリウム、ネオン等の低沸点成分の含
有量が少ない高純度窒素を採取する空気液化分離方法及
び装置に関するものである。 ［０００２１ 【従来の技術］ 従来より、工業的に窒素を製造する方法、装置として、
空気を原料としてこれを液化し、その組成分をその沸点
差によって精留分離するいわゆる空気液化分離方法が採
用されているが、これを図２の複式精留塔を用いた装置
で説明する。 （０００３］

Claims (4)

    【特許請求の範囲】
  1. 【請求項１】高純度窒素を採取する空気液化分離方法に
    おいて、複式精留塔の上部塔頂部より水素等の低沸点成
    分の含有量の多い窒素ガスを導出すると共に、該上部塔
    頂部より数段下の精留段より水素等の低沸点成分の含有
    量の少ない高純度の窒素ガスまたは液化窒素を導出する
    ことを特徴とする空気液化分離方法。
  2. 【請求項２】原料空気を液化し、複式精留塔により精留
    分離して高純度窒素を採取する空気液化分離装置におい
    て、前記複式精留塔の上部塔頂部より水素等の低沸点成
    分の含有量の多い窒素ガスを導出する経路と、該上部塔
    頂部より数段下の精留段より水素等の低沸点成分の含有
    量の少ない高純度の窒素ガスまたは液化窒素を導出する
    経路を設けたことを特徴とする空気液化分離装置。
  3. 【請求項３】前記複式精留塔は、精留段が数段多く設け
    られていることを特徴とする請求項２記載の空気液化分
    離装置。
  4. 【請求項４】前記水素等の低沸点成分の含有量の多い窒
    素ガスを導出する経路は、その量を調節しつつ導出する
    手段を備えていることを特徴とする請求項２記載の空気
    液化分離装置。
JP279691A 1991-01-14 1991-01-14 空気液化分離方法及び装置 Expired - Fee Related JPH0615947B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP279691A JPH0615947B2 (ja) 1991-01-14 1991-01-14 空気液化分離方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP279691A JPH0615947B2 (ja) 1991-01-14 1991-01-14 空気液化分離方法及び装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP25179983A Division JPS60142183A (ja) 1983-12-28 1983-12-28 空気液化分離方法及び装置

Publications (2)

Publication Number Publication Date
JPH03271685A true JPH03271685A (ja) 1991-12-03
JPH0615947B2 JPH0615947B2 (ja) 1994-03-02

Family

ID=11539336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP279691A Expired - Fee Related JPH0615947B2 (ja) 1991-01-14 1991-01-14 空気液化分離方法及び装置

Country Status (1)

Country Link
JP (1) JPH0615947B2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103055529A (zh) * 2012-12-27 2013-04-24 淄博特普化工技术有限公司 带有塔内压力调节装置的减压间歇精馏塔及其使用方法
CN104034123A (zh) * 2014-06-27 2014-09-10 莱芜钢铁集团有限公司 一种空气分离装置积液调纯一体化作业方法
CN109595877A (zh) * 2018-11-29 2019-04-09 杭州杭氧股份有限公司 一种适用于抽压氮空分的粗氖氦提取装置及其提取方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103055529A (zh) * 2012-12-27 2013-04-24 淄博特普化工技术有限公司 带有塔内压力调节装置的减压间歇精馏塔及其使用方法
CN104034123A (zh) * 2014-06-27 2014-09-10 莱芜钢铁集团有限公司 一种空气分离装置积液调纯一体化作业方法
CN109595877A (zh) * 2018-11-29 2019-04-09 杭州杭氧股份有限公司 一种适用于抽压氮空分的粗氖氦提取装置及其提取方法
CN109595877B (zh) * 2018-11-29 2020-12-01 杭州制氧机集团股份有限公司 一种适用于抽压氮空分的粗氖氦提取装置及其提取方法

Also Published As

Publication number Publication date
JPH0615947B2 (ja) 1994-03-02

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