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KR890014381A - 농축 산소 가스의 회수 방법 - Google Patents

농축 산소 가스의 회수 방법 Download PDF

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KR890014381A
KR890014381A KR1019890003366A KR890003366A KR890014381A KR 890014381 A KR890014381 A KR 890014381A KR 1019890003366 A KR1019890003366 A KR 1019890003366A KR 890003366 A KR890003366 A KR 890003366A KR 890014381 A KR890014381 A KR 890014381A
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adsorption tank
gas
adsorption
oxygen gas
outlet
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가즈오 하루나
간지 우에다
마사히로 이노우에
히또시 소메다
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마스다 히로하루
세이떼쓰 가가꾸 고오교 가부시끼가이샤
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B01D53/0473—Rapid pressure swing adsorption
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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40013—Pressurization
    • B01D2259/40015—Pressurization with two sub-steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40028—Depressurization
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40043—Purging
    • B01D2259/40045—Purging with two sub-steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40043—Purging
    • B01D2259/4005—Nature of purge gas
    • B01D2259/40052—Recycled product or process gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
    • B01D2259/40069—Eight
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    • B01D—SEPARATION
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    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40077—Direction of flow
    • B01D2259/40081—Counter-current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B01D53/0476—Vacuum pressure swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • B01D53/053—Pressure swing adsorption with storage or buffer vessel

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  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

내용 없음.

Description

농축 산소 가스의 회수 방법
제1도는 본 발명의 저압법에서 사용되는 기구의 바람직한 예를 설명하는 가스 흐름도이고,
제2도는 본 발명의 고압법에서 사용되는 기구의 바람직한 예를 설명하는 가스 흐름도이며,
제3a 내지 3e도는 제1도에 나타낸 기구를 사용하는 본 발명의 방법중 하나의 바람직한 양태를 설명하는 조작 공정이고.

Claims (7)

  1. 흡착제로서 제올라이트 분자체로 충전된 두개의 흡착조 A와 B, 및 각 흡착조의 출구측에 연결되어 있고 통상적으로 사용되는 회수된 농축 산소 가스 축적용의 가스 저장조를 설치하고, 혼합 가스를 대기압 내지 2kg/cm2G미만의 압력에서 흡착조 A로 도입하여 질소 가스를 흡착하며, 100mmHg 내지 400mmHg의 압력하에 흡착조 B내에 미리 흡착된 질소 가스를 탈착시키고, 상기의 도입, 흡착 및 탈착을 하기의 여섯개의 공정에 따라 수행하며, 이 여섯개의 공정을 순차적으로 흡착조 A 및 B에서 교대로 반복함을 특징으로 하여 PSA에 의해 주로 질소 가스와 산소 가스로 구성된 혼합 가스로부터 농축 산소 가스를 회수하는 방법. (1) 생성되는 농축 산소가스를 흡착조 A의 출구를 통해 저장조 내로 축적하면서 혼합 가스를 흡착조 A의 입구를 통해 도입하고 질소 가스를 선택적으로 흡착시키며 ; (2) 진공 펌프를 사용하여 흡착조 B의 입구를 통해 질소 가스를 탈착시키고;(3) 저장조 내의 농축 산소 가스 생성물 중 일부를 질소 가스의 탈착이 계속되고 있는 흡착조 B의 출구측으로 역류세정하며; (4) 흡착조 A로의 혼합 가스의 도입을 중지한 후 흡착조 A 내의 잔류 농축 산소 가스 중 일부를 흡착조 A의 출구를 통해 흡착조 B의 출구로 도입하여 농축산호 가스를 회수하고; (5) 농축 산소 가스 중 일부를 흡착조 B의 출구로 역류시켜 압력을 축적하면서 흡착조 A의 출구를 통해 탈착이 완결된 흡착조 B의 입구로 흡착조 A내의 잔류 가스를 도입하여 농축 산소 가스를 회수하며; (6) 흡착조 B의 입구로 혼합가스를 도입하여 가압공정을 행하면서 농축 산소 가스중 일부를 흡착조 B의 출구로 역류시킨다.
  2. 제1항에 있어서, 회수공정(4)에서의 흡착조 B의 압력 증가량이 200mmHg이하이고, 압력 축적 공정(5)이 완결된 후 흡착조 A와 B 사이의 압력 차이가 실질적으로 0인 방법.
  3. 흡착제로서 제올라이트 분자체로 충전제 두개의 흡착조 A와 B, 및 각 흡착조의 출구측에 연결되어 있고 통상적으로 사용되는 회수된 농축 산소 가스 축적용의 가스 저장조를 설치하고, 혼합가스를 2 내지 8kg/cm2G의 압력에서 흡착조 A로 도입하며, 미리 흡착된 질소 가스를 대기압으로 흡착조 B에서 탈착시키고, 상기의 도입, 흡착 및 탈착을 하기의 여섯개의 공정에 따라 행하며, 이 여섯개의 공정을 순차적으로 흡착조 A 및 B에서 교대로 반복함을 특징으로 하여 PSA에 의해 주로 질소 가스와 산소 가스로 구성된 혼합 가스로부터 농축 산소 가스를 회수하는 방법. (1) 생성되는 농축 산소 가스를 흡착조 A의 출구를 통해 저장조 내로 축적시키면서 혼합 가스를 흡착조 A의 입구를 통해 도입하고 질소 가스를 선택적으로 흡착시키며 ; (2) 질소 가스를 흡착조 B의 입구를 통해 탈착시키고 ; (3) 농축 산소 가스중 일부를 질소 가스의 탈착이 계속되고 있는 흡착조 B의 출구 말단으로 역류 세정하며 ; (4) 흡착조 A로의 혼합 가스의 도입을 중지한 후, 흡착조 A내의 잔류 농축 산소 가스 중 일부를 흡착조 A의 출구를 통해 흡착조 B의 출구로 도입하여 농축 산소 가스를 회수하고 ; (5) 농축 산소 가스 중 일부를 흡착조 B의 출구로 역류시켜 압력을 축적하면서 흡착조 A내의 잔류 농축 산소 가스를 흡착조 A의 출구를 통해 탈착이 완결된 흡착조 B의 입구로 도입하여 농축 산소 가스를 회수하며 ; (6) 혼합 가스를 흡착조 B의 입구로 도입하여 가압공정을 행하면서 농축 산소 가스 중 일부를 흡착조 B의 출구로 역류시킨다.
  4. 제3항에 있어서, 회수공정(4)에서의 흡착조 B의 압력 증가량이 0.5kg/cm2G이하이고 압력 축적공정(5)이 완결된 후 흡착조 A와 B사이의 압력 차이가 실질적으로 0인 방법.
  5. 제1 내지 4항중 어느 한 항에 있어서, 주성분으로서 질소 가스와 산소 가스로 구성된 혼합 가스가 공기인 방법.
  6. 제1 또는 3항에 있어서, 농축 산소 가스의 가스 저장 탱크 하나가 설치되어 있고 그의 부피가 흡착조 하나의 부피의 적어도 절반인 방법.
  7. 제1 또는 3항에 있어서, 회수 공정(3)가 임의로 생략된 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890003366A 1988-03-17 1989-03-17 농축 산소 가스의 회수 방법 KR910009568B1 (ko)

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Application Number Priority Date Filing Date Title
JP63-65197 1988-03-17
JP63065197A JP2683806B2 (ja) 1988-03-17 1988-03-17 濃縮酸素回収方法
JP65197 1997-01-07

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KR890014381A true KR890014381A (ko) 1989-10-23
KR910009568B1 KR910009568B1 (ko) 1991-11-21

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US (1) US4917710A (ko)
EP (1) EP0334495B1 (ko)
JP (1) JP2683806B2 (ko)
KR (1) KR910009568B1 (ko)
CN (1) CN1017133B (ko)
AU (1) AU605677B2 (ko)
CA (1) CA1321557C (ko)
DE (1) DE68922427T2 (ko)
ES (1) ES2075043T3 (ko)

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ES2075043T3 (es) 1995-10-01
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DE68922427D1 (de) 1995-06-08
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EP0334495B1 (en) 1995-05-03
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AU605677B2 (en) 1991-01-17
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CA1321557C (en) 1993-08-24

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