KR880002565A - 개스 혼합물의 흡착분리 공정 - Google Patents

개스 혼합물의 흡착분리 공정 Download PDF

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KR880002565A
KR880002565A KR870009136A KR870009136A KR880002565A KR 880002565 A KR880002565 A KR 880002565A KR 870009136 A KR870009136 A KR 870009136A KR 870009136 A KR870009136 A KR 870009136A KR 880002565 A KR880002565 A KR 880002565A
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process according
bed
adsorption
pressure
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시르카 쉬바지
알.코크 윌리암
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원본 미기재
에어프로덕츠 앤드 케미칼스, 인코오포레이티드
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Abstract

내용 없음

Description

개스 혼합물의 흡착분리 공정
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 5개의 베드를 구체적으로 나타낸 흐름도.
제2도는 여러 압력하에서 나트륨 모더나이트(soclium mordenite)흡착제를 이용하여 공기 중에서의 질소의 선택도를 나타낸 그래프.
제3도는 서로 다른 3개의 압력하에서 BPL 탄소 흡착제를 이용하여 50-50의 CO2-메탄 혼합물 중에서의 CO2의 선택도를 나타낸 그래프.

Claims (16)

  1. 전범위의 압력 및 온도에서 제2성분에 대해 20이상의 선택도를 가지는 흡착제를 이용하여 수소 및 CO2,메탄 및 CO2질소 및 메탄, 질소 및 CO2또는 수소 및 질소로 구성된 제1/제2성분 그룹에서 선택한 개스혼합물을 고압에서 흡착분리하는 공정에 있어서, 상기 흡착분리가 수행되면 각 성분은 높은 회수율, 고순도로서 회수되며 제1성분은 바람직하게는 제2성분을 선택적 흡착하는 다수의 평행 흡착배드 내에서 상승된 압력으로 회수되는 하기의 단계들로 구성되는 것을 특징으로 하는 흡착분리공정 :(a)원료 개스 혼합물을 30-500psig의 압력으로 다수의 흡착배드 중의 하나에 통과시키며, 상기의 제1성분은 순수한 제품으로서 배드에서 얻어지며 제2성분은 흡착제에 선택적으로 흡착되며, 상긴 흡착제는 흡착배드의 개스 조성물, 압력 및 온도에서 분리된 제2성분에 대해 20이상의 선택도를 갖는다. : (b)흡착을 중단하고 대략 원료 급송 압력정도의 제2성분의 스트림(stre-am)을 가지고 흡착배드를 세척하여 제1성분을 제거하며, 유출물은 공정의 원료 라인으로 재순환된다 ; (c) 상기 흡착배드로 부터 제2성분을 적어도 부분적으로 제거하기 위하여 상기 흡착배드에 역류시켜 중간 압력(intermediate pressure)이 되도록 세척된 흡착배드를 감압시키고 ;(d) 상기의 감압단계(c)에 이어서 더 이상의 세척없이, 상기 흡착배드를 역류도 배출시켜 대기압 이하의 압력이 되도록 하여 상기 배드로 부터 제2성분을 제거하고 ;(e) 또다른 흡착단계를 위한 배드를 준비하기 위하여 대기압 이상의 압력으로 배드를 다시 가압시키는 단계.
  2. 제1항에 있어서, 흡착기간 동안 흡착배드 내의 온도 범위는 10℃내지 60℃인 것을 특징으로 하는 공정.
  3. 제1항에 있어서, 상기 분리는 나란히 연결된 2개 내지 6개의 배드 사이에 변호를 매긴 흡착배드 내에서 수행되는 것을 특징으로 하는 공정.
  4. 제1항에 있어서, 상기 제1성분 및 제2성분의 회수율은 95% 또는 그 이상인 것을 특징으로 하는 공정.
  5. 제1항에 있어서, 상기 원료 개스 혼합물은 매립지 오프개스(off-gas)인 것을 특징으로 하는 공정.
  6. 제1항에 있어서, 상기 원료 개스 혼합물은 제1성분으로서 수소를 제2성분으로서 CO2를 함유한 스팀 개질기 오프 개스(steam reformer off-gas)인 것을 특징으로 하는 공정.
  7. 제1항에 있어서, 상기 원료 개스 혼합물은 산소가 타서 넘치는 (fire flood)또는 CO2가 넘침(flood)으로 인해 얻어진 유전지로 부터 제조된 개스 혼합물인 것을 특징으로 하는 공정.
  8. 제1항에 있어서, 상기 원료 개스 혼합물은 물과 중(重) 탄화수소를 제거시키기 위하여 선처리하는 것을 특징으로 하는 공정.
  9. 제1항에 있어서, 상기 세척단계(b)는 흡착단계(a)에 대해 병류로(동일 방향으로) 수행되는 것을 특징으로 하는 공정.
  10. 제1항에 있어서, 상기 재가압 단계(e)는 흡착단계(a)에 대해 양류(역방향으로)로 수행되는 것을 특징으로 하는 공정.
  11. 제1항에 있어서, 단계(c)및 단계(d)에서 방출된 제2성분의 일부분은 단계(b)의 세척용 개스로서 사용하는 것을 특징으로 하는 공정.
  12. 제1항에 있어서, 단계(d)에서 방출한 제2성분의 일부분은 단계(b)에서 세척용 개스로서 사용하는 것을 특징으로 하는 공정.
  13. 제1항에 있어서, 상기 단계(c)은 적어도 2개의 단계로 수행되는 것을 특징으로 하는 공정.
  14. 제1항에 있어서, 상기 단계(c)은 중간 압력은 대략 대기압인 것을 특징으로 하는 공정.
  15. 제14항에 있어서, 감압의 처음단계에서 나온 제2성분은 단계(b)의 세척용으로 사용하는 것을 특징으로 하는 공정.
  16. 제1항에 있어서, 상기 개스 혼합물이 메탄 및 CO2일때 CaA제올라이트, NaX제올라이트, NaY제올라이트 또는 Na모더나이트로 구성되는 그룹으로 부터 흡착제를 선택하는 것을 특징으로 하는 공정.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR870009136A 1986-08-22 1987-08-21 개스 혼합물의 흡착분리 공정 KR880002565A (ko)

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