KR970020167A - 공기 분리 플랜트로부터 생성된 질소를 사용하여 후속 공정으로의 공급원료 가스로부터 이산화탄소를 제거하는 방법 - Google Patents

공기 분리 플랜트로부터 생성된 질소를 사용하여 후속 공정으로의 공급원료 가스로부터 이산화탄소를 제거하는 방법 Download PDF

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KR970020167A
KR970020167A KR1019960043354A KR19960043354A KR970020167A KR 970020167 A KR970020167 A KR 970020167A KR 1019960043354 A KR1019960043354 A KR 1019960043354A KR 19960043354 A KR19960043354 A KR 19960043354A KR 970020167 A KR970020167 A KR 970020167A
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gas
carbon dioxide
nitrogen
air separation
oxygen
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KR1019960043354A
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KR100192690B1 (ko
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마이클 오치알리니 제임스
존 앨램 로드니
알리 칼바씨 모하메드
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윌리엄 에프. 마쉬
에어 프로덕츠 앤드 케미칼스, 인코오포레이티드
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Abstract

본 발명은 공기 분리 플렌트에서 생성된 질소를 사용하여 후속 공정으로의 공급원료 가스로부터 이산화탄소를 제거하는 방법에 관한 것이다. 저온 공기 분리 유닛(ASU)은 산소 및 질소의 흐름을 제공한다. 산소는 COREX 제철 공정 또는 탄화수소의 부분 산화 공정등의 공정에 사용되거나, 산화석탄 연료를 사용하는 송풍 요로에 사용되어, 유용한 성분(H2및 CO)과 이산화탄소를 함유하는 오프-가스(off-gas)를 생성한다. 이산화탄소는 ASU로부터 얻은 질소를 재생 가스로서 사용하는 압력 스윙 흡착에 의해 제거되며, 정제된 오프-가스는 후속 공정 예컨대 철광석의 직접 환원에 의한 제철 공정 또는 암모니아 원료인 NH3의 제조 공정과 같은 공정에 대한 공급원료 가스가 되거나, 최초의 공정에 공급원료 가스로서 재순환된다.

Description

공기 분리 플랜트로부터 생성된 질소를 사용하여 후속 공정으로의 공급원료 가스로부터 이산화탄소를 제거하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 장치의 개략적인 설계 다이아그램을 도시한 도면이다.

Claims (16)

  1. 저온 공기 분리 유닛을 작동시켜서 산소와 질소를 생성시키는 단계, 하나 이상의 다른 가스와 혼합된 이산화탄소를 함유하는 오프-가스(off-gas)를 생성하는 공정을 수행하는 단계, 및 흡착제상에 이산화탄소를 흡착시키는 것과 그 흡착제를 상기 공기 분리 유닛로부터 생성된 질소의 흐름하에 재생시키는 것을 교대로 실시하므로써 상기 오프-가스로부터 이산화탄소를 제거하는 단계를 포함하는, 공기를 산소와 질소로 분리시키고, 그 결과 생성된 질소를 사용하는 방법.
  2. 제1항에 있어서, 공기 분리 유닛으로부터 생성된 산소를 오프-가스를 생성하는 공정에 사용하는 방법.
  3. 제2항에 있어서, 상기 공정이 제철 및 제강 공정이고, 오프-가스는 수소와 일산화탄소뿐만 아니라, 이산화탄소도 포함하는 방법.
  4. 제2항에 있어서, 상기 공정은 산소에 의해 탄화수소를 부분 산화시킴으로써 수소를 제조하여, 상기 수소와 함께 이산화탄소를 포함하는 오프-가스를 제공하는 공정인 방법.
  5. 제1항에 있어서, 이산화탄소가 제거된 오프-가스를 후속 공정에 사용하거나, 또는 동일 공정으로 재순환시키는 단계를 추가로 포함하는 방법.
  6. 제5항에 있어서, 후속 공정이 철광석의 직접 환원에 의한 제철 공정인 방법.
  7. 제5항에 있어서, 후속 공정이 오프-가스중의 수소에 의해 질소를 환원시킴으로써 암모니아를 제조하는 공정인 방법.
  8. 제5항에 있어서, 후속 공정이 오프-가스중의 수소와 반응시킴으로써 정유하는 공정인 방법.
  9. 제5항에 있어서, 오프-가스 제조 공정이 부분적으로 산화석탄을 연료로 사용하는 송풍 요로의 작업이고, 오프-가스는 이산화탄소의 제거후 상기 송풍 요로에 대한 연료로서 재순환되는 방법.
  10. 제1항에 있어서, 흡착제는 압력이 0.1 내지 3바인 질소 흐름하에서 재생시키는 방법.
  11. 분리시키고자 하는 공기의 주입구 및 상기 공기의 분리된 성분인 산소와 질소의 배출구를 가진 저온 공기 분리 유닛; 일련의 공정을 수행하기 위한 기구로서, 상기 공정을 위한 공급원료의 주입구 및 그 공정에서 생성된 오프-가스의 배출구를 가진 기구; 재생가능한 흡착제를 함유하는 이산화탄소 제거 유닛으로서, 상기 이산화탄소 제거 유닛에 대한 공급원료 가스인 상기 오프-가스의 주입구, 상기 이산화탄소 제거 유닛내의 흡착제를 재생하기 위한 소기 가스인 질소의 주입구 및 감소된 농도의 이산화탄소를 함유하는 상기 오프-가스의 배출구를 가진 유닛, 및 상기 공기 분리 유닛의 질소 배출구로부터 유래한 질소를 상기 이산화탄소 제거 유닛의 질소 주입구로 공급하기 위한 수단을 포함하는, 공기를 산소와 질소로 분리시키고, 그 결과 생성된 질소를 사용하기 위한 장치.
  12. 제11항에 있어서, 공급원료로서 감소된 농도의 이산화탄소를 함유하는 오프-가스의 주입구를 가진 제2의 공정을 수행하기 위한 기구를 추가로 포함하는 장치.
  13. 제11항에 있어서, 공기 분리 유닛의 산소 배출구로부터 유래한 산소를 상기 공정을 수행하기 위한 기구에 공급원료 가스로서 공급하기 위한 수단을 포함하는 장치.
  14. 제11항에 있어서, 공정을 수행하기 위한 기구가 제철 공정용이고, 생성된 오프-가스가 이산화탄소로 오염된 일산화탄소 및 수소를 포함하는 장치.
  15. 제11항에 있어서, 공정을 수행하기 위찬 기구가 탄화수소의 부분 산화에 의해 수소를 제조하기 위한 기구인 장치.
  16. 제11항에 있어서, 공정을 수행하기 위한 기구가 송풍 요로의 연료 물질로서 감소된 농도의 이산화탄소를 함유한 오프-가스의 주입구를 갖는 산화석탄을 연료로 사용하는 송풍 요로인 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960043354A 1995-10-04 1996-10-01 공기 분리 플랜트로부터 생성된 질소를 사용하여 후속 공정으로 의 공급원료 가스로부터 이산화탄소를 제거하는 방법 KR100192690B1 (ko)

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US08/538,878 US5582029A (en) 1995-10-04 1995-10-04 Use of nitrogen from an air separation plant in carbon dioxide removal from a feed gas to a further process
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EP0767349A2 (en) 1997-04-09
TW315311B (ko) 1997-09-11
CA2186679A1 (en) 1997-04-05
DE69629990D1 (de) 2003-10-23
DE69629990T2 (de) 2004-07-29
US5582029A (en) 1996-12-10
SG69989A1 (en) 2000-01-25

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