期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 77, 期 1, 页码 53-59出版社
ELSEVIER
DOI: 10.1016/j.seppur.2010.11.019
关键词
PVA/ceramic composite membrane; Pervaporation; Ethyl acetate dehydration; Interaction
资金
- National Basic Research Program of China [2009CB623400]
- National Natural Science Foundation of China [20990222]
- Six kinds of important talents program of Jiang Su [2007007]
- Nature Science Foundation of Jiangsu Province [SBK200930313]
Dehydration of ethyl acetate (EAC)-water mixtures by pervaporation (PV) was studied using a ceramic-supported polyvinyl alcohol (PVA) composite membrane. The effects of feed temperature, feed water content and feed flow rate on the PV performance of the membrane were systematically investigated. In addition, swelling experiments were performed to evaluate the sorption characteristic of the membrane. Flory-Huggins and NRTL (non-random two liquid) theories were applied to analyze the interactions of the membrane and penetrants and the mutual interaction between the penetrants. The membrane exhibited high PV performance, the water permeance and selectivity of water to EAC were 1.45 x 10(-5) kg m(-2) s(-1) kPa(-1) and 129, respectively, at 60 degrees C with the feed water content of 5.1 wt% and the feed flow rate of 252 mL min(-1). (C) 2010 Elsevier B.V. All rights reserved.
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