Bio-ethanol Dehydration in a Heat Pump Aided ...

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GRØN DYST 2014 Technical University of Denmark

Bio-ethanol Dehydration in a Heat Pump Aided Extractive Dividing-wall Column
Paper
Author:Hao Luo (Sino-Danish Center for Education and Research, China)
Xiaoyang Li (Sino-Danish Center for Education and Research, China)
Xiaoying Xu (Sino-Danish Center for Education and Research, China)
Xiaoyun Li (Sino-Danish Center for Education and Research, China)
Date: 2014-06-27     Track: Main     Session: 1

Large-scale production of bio-ethanol fuel requires energy demanding separation steps to concentrate the diluted streams from the fermentation step and to overcome the azeotropic behavior of the ethanol–water mixture. In the present work, a novel heat pump aided extractive dividing-wall column (H-E-DWC) is designed to substitute the conventional separation approach which consists of three distillation columns performing several tasks with high energy penalties.