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Korean chemical engineering research = 화학공학, v.55 no.3, 2017년, pp.341 - 352
양정인 (충남대학교 응용화학공학과) , 전형철 (충남대학교 응용화학공학과) , 한명완 (충남대학교 응용화학공학과)
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Butyl acetate is produced from acetic acid and butanol via an esterification reaction in a reactive distillation column. Entrainer can be used for efficient removal of produced water from the reaction region, leading to significant improvement of the column performance. Batch reactive distillation h...
| 핵심어 | 질문 | 논문에서 추출한 답변 |
|---|---|---|
| 부틸 아세테이트의 주 사용처는 무엇인가? | 부틸 아세테이트는 주로 용제로 쓰이는 화학제품이며, 향료의 착향 목적으로 사용되기도 한다. 부틸 아세테이트는 주로 초산과 부탄올의 에스테르 교환반응을 통해 얻어진다. 에스테르 교환반응은 물 존재 하에서 화학평형에 의해 제한되는 평형 반응이다. | |
| 공비첨가제는 어떤 역할을 하는가? | 공비첨가제는 생성물의 상대휘발도를 증가시켜 분리를 용이하게 하고, 반응 증류의 성능을 향상시킨다. 이를 공비첨가제를 사용한 반응 증류 공정(Entrainer enhanced reactive distillation)이라고 한다. | |
| 아세테이트 합성을 위한 연속 반응 증류탑의 문제점은 무엇인가? | 기존의 부틸 아세테이트 합성은 주로 고상의 산 촉매를 사용한 연속 반응 증류탑이 사용되었다. 그러나 이 경우 물과 부탄올의 공비에 의하여 부탄올이 탑상으로 배출되기 때문에 이를 액-액 분리기를 이용해 분리하여 재순환해야하는 문제점이 있다. 만약 부탄올이 반응부에서 완전히 소모되지 않는다면, 평형전환율은 제한되어 추가적인 분리 공정이 필요할 것이다. |
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