Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions
Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions
复制标题
中试内皮中空纤维渗透汽化膜组件的制备：动态组装条件的影响
DOI：
10.1016/j.memsci.2009.04.002
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发表时间：
2009-08
影响因子：
9.5
通讯作者：
Ji, Shulan
中科院分区：
文献类型：
--
作者：
Song, Xue;Zhang, Guojun;Wang, Naixin;Liu, Zhongzhou;Ji, Shulan
本研究的目的是为工业中空纤维渗透汽化膜组件的设计提供一些基本的认识。采用动态负压逐层（LbL）技术制备了内皮层中空纤维渗透汽化膜组件。首次采用微型模块法研究了动态组装过程中动态负压和溶液循环速度对无孔选择层形成的影响。由于没有报道的工作处理的中空纤维组件的填充密度的影响，因此，中试规模的组件（直径×长度= 1英寸× 20厘米），通过填充到一个膜壳的中空纤维的数量。实验结果表明，当填料密度为500 m2/m3时，总通量和选择性均显著降低。对于工业上常用的1 m长的模块，使用1 m长的中空纤维模块进行了进一步的研究。注意到真空度沿中空纤维轴向沿着下降，特别是靠近真空抽吸口。尽管如此，即使纤维长度增加到1 m，也可以获得相对高且稳定的选择性。
The purpose of this study is to provide some fundamental understanding for the design of industrial hollow fiber pervaporation membrane module. Inner skin hollow fiber pervaporation membrane modules were fabricated by a dynamic negative pressure layer-by-layer (LbL) technique. The influences of dynamic negative pressure and recycling velocity of polyelectrolyte solutions on the formation of non-porous selective layer were firstly investigated using mini-modules during the dynamic assembly process. Since none of reported works dealt with the effects of packing density of hollow fiber module, pilot-scale modules (diameter×length=1in.×20cm) were therefore prepared by filling different amounts of hollow fibers into a membrane shell. The experimental results show that the higher packing density of 500m2/m3rendered both total flux and selectivity to decrease significantly. As for a 1m long module that has been commonly used in industry, further investigations were conducted using a 1-m long hollow fiber module. The vacuum drop along the axial direction of hollow fibers was noted, especially near to the vacuum suction opening. Despite of this, the relatively high and stable selectivity could be obtained even the fiber length increased to 1m.
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影响因子：
9.5
作者：
M. G. Liu;J. M. Dickson;P. Cote
通讯作者：
M. G. Liu;J. M. Dickson;P. Cote
影响因子：
9.5
作者：
Sullivan, DM;Bruening, ML
通讯作者：
Bruening, ML
影响因子：
9.5
作者：
Guojun Zhang;Xuejing Song;S. Ji;Naixin Wang;Zhong-zhou Liu
通讯作者：
Guojun Zhang;Xuejing Song;S. Ji;Naixin Wang;Zhong-zhou Liu
影响因子：
4.2
作者：
C. Vallières;É. Favre;D. Roizard;J. Bindelle;D. Sacco
通讯作者：
C. Vallières;É. Favre;D. Roizard;J. Bindelle;D. Sacco
影响因子：
9.5
作者：
Bowen, TC;Kalipcilar, H;Noble, RD
通讯作者：
Noble, RD