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Performances of catalytic and pervaporation difunctional composite membranes embedded with TiO2 (Al2O3) nano particles
Authors: WEN Xin, MA Xiao-hua , XU Zhen-liang, WEI Yong-Ming, CHENG Liang
Units: State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, China
KeyWords: Difunctional composite membranes; Catalysis; Pervaporation; Nano TiO2; Nano Al2O3
ClassificationCode:TQ028.8
year,volume(issue):pagination: 2012,32(3):1-5

Abstract:
PAN hollow fiber ultrafiltration membrane was used as support, PVA surface-crosslinked with GA was used to prepare pervaporation layer and PFSA embedded with TiO2 or Al2O3 nano particles was used as catalytic layer, to prepare catalytic and pervaporation difunctional composite membranes. Difunctional composite membranes were evaluated by dehydration of the top product (water, ethanol and ethyl acetate ternary azeotropic system) of reactive distillation, esterification of acetic acid with ethanol, hydrophilicity and mechanical performance. It was found that difunctional composite membranes had good mechanical properties and hydrophilicity, the permeation flux could reach to 179 g/m2 h with the separation factor of water to ethanol of 95 ,no ethyl acetate in the permeate, and the time to achieve the same conversion of esterification was remarkably reduced than blank control.

Funds:
“十一五”国家科技重大专项2009ZX02032、国家自然科学基金项目21176067和化学工程联合国家重点实验室课题。

AuthorIntro:
温馨(1989 ~),女,云南昭通人,保研本科生,研究方向为渗透汽化膜制备与分离等。*通信联系人:许振良,E-mail: chemxuzl@ecust.edu.cn;电话:021-64253061;传真:021-64252989

Reference:
[1] 李雪辉,王乐夫.酯化反应偶联渗透汽化膜反应器PPAV/PAN复合膜稳定性研究.[J].天然气化工,2000,25(2):10~14。
[2] 李雪辉,王乐夫,孙琳.渗透汽化-酯化反应耦联膜过程动力学模型.[J].化工学报,2000, 51(2):210~214。
[3] 袁海宽,许振良,马晓华,等.全氟磺酸改性聚乙烯醇渗透汽化膜分离乙酸乙酯-水溶液.[J].高校化学工程学报,2009,23(1):131~136。
[4] Ma Xiao-Hua,Xu Zhen-Liang,Liu Yang,et al.Preparation and Characterization of PFSA–PVA–SiO2/PVA/PAN difunctional hollow fiber Composite Membranes.[J].J Membr Sci,2010,360(1~2):315~322。
[5] 张玲,孙元,邓新华,等.分离甲醇水溶液复合渗透汽化膜的制备与研究.[J].天津工业大学学报,2010,29(2):1~4。
[6] 仉春华,杨凤林,王文君,等. 聚乙烯醇改性无纺布制备及性能研究.[J].大连理工大学学报,2009,29(6):817~821。
[7] 芦艳,于水利,孟丽丽.纳米Al2 O3改性PVDF 超滤膜的制备及其抗污染性.[J].哈尔滨工业大学学报,2009,41(10):64~69。

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