Energy conserving effects of dividing wall column

doi:10.1016/j.cjche.2014.08.009

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (6): 934-940.DOI: 10.1016/j.cjche.2014.08.009

Energy conserving effects of dividing wall column

Jing Fang, Hanmei Zhao, Jianchao Qi, Chunli Li, Junjie Qi, Jiajia Guo

School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China

收稿日期:2014-01-06 修回日期:2014-08-25 出版日期:2015-06-28 发布日期:2015-07-09
通讯作者: Chunli Li
基金资助:
Supported by theNationalNatural Science Foundation of China (21306036), Science& Technology Research Fund Project for Outstanding Youth in Colleges and Universities of Hebei province (Y2012040), and the Joint Specialized Research Fund for the Doctoral Program of Higher Education of China (20131317120014).

Energy conserving effects of dividing wall column

Jing Fang, Hanmei Zhao, Jianchao Qi, Chunli Li, Junjie Qi, Jiajia Guo

School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China

Received:2014-01-06 Revised:2014-08-25 Online:2015-06-28 Published:2015-07-09
Contact: Chunli Li
Supported by:
Supported by theNationalNatural Science Foundation of China (21306036), Science& Technology Research Fund Project for Outstanding Youth in Colleges and Universities of Hebei province (Y2012040), and the Joint Specialized Research Fund for the Doctoral Program of Higher Education of China (20131317120014).

摘要/Abstract

摘要： The energy-conserving performance of dividing wall column (DWC) is discussed in this paper. The heat transfer through the dividing wall is considered and the results are compared with that of common heat insulation dividing wall column (HIDWC). Based on the thermodynamic analysis of heat transfer dividing wall column (HTDWC) and HIDWC, both computer simulation and experiments are employed to analyze the energyconserving situation. Mixtures of n-hexane, n-heptane and n-octane are chosen as the example for separation. The results show that the energy consumption of HTDWC is 50.3% less than that of conventional distillation column, while it is 46.4% less than that of HIDWC. It indicates that DWC is efficient on separating threecomponent mixtures and HTDWC can save more energy than HIDWC. Thus it is necessary to consider the heat transfer while applying DWC to industry.

关键词: Dividing wall column, Energy-saving, Heat transfer, Back-mixing, Thermodynamic efficiency

Abstract: The energy-conserving performance of dividing wall column (DWC) is discussed in this paper. The heat transfer through the dividing wall is considered and the results are compared with that of common heat insulation dividing wall column (HIDWC). Based on the thermodynamic analysis of heat transfer dividing wall column (HTDWC) and HIDWC, both computer simulation and experiments are employed to analyze the energyconserving situation. Mixtures of n-hexane, n-heptane and n-octane are chosen as the example for separation. The results show that the energy consumption of HTDWC is 50.3% less than that of conventional distillation column, while it is 46.4% less than that of HIDWC. It indicates that DWC is efficient on separating threecomponent mixtures and HTDWC can save more energy than HIDWC. Thus it is necessary to consider the heat transfer while applying DWC to industry.

Key words: Dividing wall column, Energy-saving, Heat transfer, Back-mixing, Thermodynamic efficiency

Jing Fang, Hanmei Zhao, Jianchao Qi, Chunli Li, Junjie Qi, Jiajia Guo. Energy conserving effects of dividing wall column[J]. Chinese Journal of Chemical Engineering, 2015, 23(6): 934-940.

Jing Fang, Hanmei Zhao, Jianchao Qi, Chunli Li, Junjie Qi, Jiajia Guo. Energy conserving effects of dividing wall column[J]. Chin.J.Chem.Eng., 2015, 23(6): 934-940.

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Energy conserving effects of dividing wall column

Energy conserving effects of dividing wall column

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