Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Design of Thermally Coupled Distillation Process Utilizing Existing Columns

기존 증류탑을 이용한 열복합 증류공정의 설계

  • 이문용 (영남대학교 디스플레이화학공학부) ;
  • 김영한 (동아대학교 화학공학과)
  • Received : 2008.04.14
  • Accepted : 2008.05.17
  • Published : 2008.10.31
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Abstract

Though many divided wall columns are implemented in field as energy-efficient distillation columns, its application is limited due to the difficulty of building a new column. A novel energy-efficient distillation system utilizing the existing columns is proposed here. The proposed can reduce the energy consumption by about 39% comparing with the existing system. And it is shown that the proposed improves the column operability over the existing. The tray numbers of the added columns have no significant influence on the composition of a side draw.

분리벽형 열복합 증류탑이 현장에서 에너지 절감형 증류 시스템으로 많이 사용되고 있으나 증류탑을 새로 제작하여야 하는 어려움이 있어, 기존의 증류탑을 활용한 에너지 절감형 증류 시스템을 제안하였다. 제안된 증류탑은 BTX 공정에서 기존 시스템에 비해 약 39%의 에너지 절감효과가 있다. 또, 제안된 증류 시스템은 분리벽형 증류탑에 비해 운전성을 개선할 수 있음을 보였으며, 추가된 증류탑의 단수는 중간제품의 조성에 큰 영향을 미치지 않는다.

Keywords

Acknowledgement

Supported by : 동아대학교

References

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