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NTIS 바로가기공업화학 = Applied chemistry for engineering, v.27 no.2, 2016년, pp.128 - 134
Due to the great development made in converting the shale gas into the more valuable products, research and commercialization for production technology of olefins like propylene, butenes, butadiene from light alkanes have been intensively investigated. Especially the technology using oxygen like oxi...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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상용화된 알칸의 탈수소반응공정에는 어떤 것들이 있는가? | 상용화된 알칸의 탈수소반응공정은 프로판의 탈수소에 의한 프로필렌의 제조, 아이소부탄의 탈수소에 의한 아이소부텐 제조, 그리고 부탄의 탈수소에 의한 부타디엔 제조를 들 수 있다. 알칸의 탈수소반응은 전통적으로 산소를 사용하지 않는 직접 탈수소반응이 상용화되고 있다. | |
프로판과 에탄의 산화적 탈수소가 상용화되기 위해 해결해야 하는 과제에는 어떤 것들이 있는가? | 동시에 프로판과 에탄의 산화적 탈수소는 상용화 규모에서 실행되기 어려운, 해결해야 되는 과제들도 존재한다. 파라핀과 산소의 혼합물을 다루어야 하는 점은 이 혼합물이 어떤 농도에서는 폭발성을 띨 수 있으므로 주의해야 할 부분이고, 다른 문제점은 올레핀으로 적절한 선택성을 가지고 전환되어야 하는 점이다. 올레핀보다는 이산화탄소와 일산화탄소가 열역학적으로는 더욱 안정한 물질이기 때문에, 이러한 COx로 반응이 더욱 진행되기 전에 올레핀에서 반응이 멈추는 촉매를 찾아내야만 한다. 또한 에틸렌과 프로필렌의 경우, 상업적으로 스팀 크랙킹 공정과 경쟁해야 하므로, 올레핀에 대한 선택도는 매우 높아야 한다. 스팀 크랙킹 공정에서의 에탄 전환율 54%에서 에틸렌의 선택도는 84%를 (800 ℃, 0. | |
선택적 수소 연소 반응은 무엇인가? | 선택적 수소 연소(SHC : Selective Hydrogen Combustion)반응은 탈수소반응 중에 생성되는 수소만을 선택적으로 산소를 사용하여 연소시켜 탈수소반응의 평형을 정반응방향으로 유도하여 평형전환율을 높이고, 수소 연소시의 연소열을 반응열로 활용하여 에너지효율을 높이고자 하는 반응이다. |
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