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Chemcial Industry and Engineering 2014, Vol. 31 Issue (2) :38-42    DOI: 10.13353/j.issn.1004.9533.2014.02.007
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Heat Recovery in Vacuum Membrane Distillation
LIU  Xue-Jing1, LI  Bao-An1, 2
(1State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, China)

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Abstract Vacuum membrane distillation technology has great potential applications in seawater desalination, industrial wastewater treatment and so on. This study focused on heat recovery in vacuum membrane distillation process. An integrated membrane module with a threestep heat recovery system was designed and manufactured. The results indicate that this novel membrane module can effectively recover the vapor latent heat produced in membrane distillation. The operating conditions, such as feed inlet temperature, feed linear velocity and vacuum degrees, has a certain influence on heat recovery rate. This paper laid a foundation for further studies on improving heat recovery efficiency of decompression membrane distillation and reducing operating cost.
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LIU Xue-Jing-1
LI Bao-An-1
2
Keywords： vacuum membrane distillation   heat recovery   heat exchanger   hollow fiber     
Received 2012-11-12;
Fund:

“十一五”科技支撑计划项目（2006BAB03A06），天津市科技支撑计划项目（12ZCZDSF02200）。
Corresponding Authors: 李保安，E-mail：baoan.li@gmail.com。     Email: baoan.li@gmail.com
About author: 刘学晶(1985-)，女，硕士研究生，研究方向：膜与膜过程。
Cite this article:   
LIU Xue-Jing, LI Bao-An .Heat Recovery in Vacuum Membrane Distillation[J]  Chemcial Industry and Engineering, 2014,V31(2): 38-42
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