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Strategic Study of CAE >> 2014, Volume 16, Issue 12

Pervaporation membrane separation technology and its application

Membrane Technology & Engineering Research Center,Department of Chemical Engineering, Tsinghua University,Beijing 100084,China

Funding project:国家自然科学基金项目(21176135);国家863计划项目(2012AA03A607);国家专项资金项目(2013EG111129) Received: 2014-09-16 Available online: 2015-01-05 14:06:12.000

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Abstract

Membrane separation technology is contemporarily a high and new technology in chemical engineering. It has been consequently developed rapidly in recent 30 years due to the availability of solving many serious problems, such as energy, resources and environment. Membrane separation technology of pervaporation as a novel separation technology is typically energy-saving and cleaner-production technology. Compared to the conventional azeotropicdistillation and extractive distillation applied to azeotropic systems, pervaporation process could lead to an energy saving of 1/3~1/2 and decrease operating costs even no less than 50 %. The industrial applications of the pervaporation dehydration over the world are introduced, and research progresses and industrial feasibilities of several pervaporation membranes are shown in this paper, which cover gasoline desulfurization membranes, methanol and ethanolpermselective membranes, dimerthyl carbonate/methanol and arene/alkane separation membranes.

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