Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Simulation Study of Methyl ethyl ketone-Cyclohexane Azeotrope on the Pressure-Swing Distillation

압력변환 증류공정을 이용한 Methyl Ethyl Ketone-Cyclohexane 공비혼합물의 전산모사

  • Park, Hoey Kyung (Department of Chemical Engineering, Kongju National University) ;
  • Ahn, June-shu (Department of Environmental Engineering, Daejin University) ;
  • Cho, Jungho (Department of Chemical Engineering, Kongju National University)
  • Received : 2015.11.03
  • Accepted : 2016.03.03
  • Published : 2016.03.31
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Abstract

The modelling and optimization of Methyl Ethyl Ketone (MEK)-Cyclohexane (CH) separation process were performed using pressure-swing distillation with a low-high pressure column and a high-low pressure column configuration. The optimization was performed for the number of theoretical stages, and the location of the feed tray of low column and high column to obtain high-purity MEK at the top. The total reboiler heat duty at the low-high pressure column configuration and high-low pressure column configuration were at 11.7667 Mkcal/h and at 10.3484 Mkcal/h, respectively. The results showed that total reboiler heat duty could be reduced to 12.05% using a high-low pressure column configuration.

Methyl Ethyl Ketone(MEK)-Cyclohexane(CH) 이성분계 공비 혼합물의 분리를 위해 압력변환 증류공정(Pressure-Swing Distillation, PSD)을 사용하여 저압-고압 컬럼 배열 공정과 고압-저압 컬럼 배열 공정에 전산모사 및 공정 최적화를 수행하였다. 저압 컬럼과 고압 컬럼 상부 MEK의 조성, 이론단수, 원료 주입단 순으로 공정 최적화를 수행하였다. 공정 최적화 수행 결과, 저압-고압 컬럼 배열 공정의 총 재비기의 heat duty 값은 11.7667 Mkcal/h이었으며, 고압-저압 배열 공정의 총 재비기의 heat duty 값은 10.3484 Mkcal/h로 고압-저압 공정의 heat duty 값이 저압-고압 공정 보다 약 12.05%정도 감소됨을 확인 할 수 있었다.

Keywords

References

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