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面向过程的陶瓷膜材料设计理论与方法(Ⅱ)颗粒体系微滤过程中膜结构参数影响预测
引用本文:李卫星,赵宜江,刘飞,邢卫红,徐南平,时钧.面向过程的陶瓷膜材料设计理论与方法(Ⅱ)颗粒体系微滤过程中膜结构参数影响预测[J].化工学报,2003,54(9):1290-1294.
作者姓名:李卫星  赵宜江  刘飞  邢卫红  徐南平  时钧
作者单位:南京工业大学膜科学技术研究所,江苏 南京210009
基金项目:国家杰出青年科学基金资助项目 (No 2 0 12 5 618)~~
摘    要:以所建立的颗粒体系微滤过程中膜结构参数与渗透性能关系模型为基础,在膜孔径和颗粒粒径均为正态分布的理想条件下对膜孔径、膜厚度、孔隙率对膜稳态通量的影响进行模拟计算.结果表明:对于颗粒悬浮体系的分离存在最优膜孔径使膜通量最大,该最优孔径随颗粒平均粒径增大、颗粒粒径分布变窄而有所增大.模拟计算结果有助于深入理解膜微观结构对宏观性能的影响.

关 键 词:陶瓷膜  结构参数  膜通量  
文章编号:0438-1157(2003)09-1290-05
收稿时间:2002-3-19
修稿时间:2002年3月19日

THEORY AND METHOD OF APPLICATION-ORIENTED CERAMIC MEMBRANES DESIGN (Ⅱ)PREDICTION OF EFFECTS OF MEMBRANE STRUCTURE PARAMETERS ON MICROFILTRATION OF PARTICLE SUSPENSION
LI Weixing,ZHAO Yijiang,LIU Fei,XING Weihong,XU Nanping,SHI Jun.THEORY AND METHOD OF APPLICATION-ORIENTED CERAMIC MEMBRANES DESIGN (Ⅱ)PREDICTION OF EFFECTS OF MEMBRANE STRUCTURE PARAMETERS ON MICROFILTRATION OF PARTICLE SUSPENSION[J].Journal of Chemical Industry and Engineering(China),2003,54(9):1290-1294.
Authors:LI Weixing  ZHAO Yijiang  LIU Fei  XING Weihong  XU Nanping  SHI Jun
Affiliation:LI Weixing,ZHAO Yijiang,LIU Fei,XING Weihong,XU Nanping,SHI Jun (Jiun Shyr)
Abstract:Based on the established model of microfiltration for separating particle suspensions, which described the relation between membrane structure parameters and its permeability, the influences of membrane structure parameters such as pore size, thickness and porosity on its performance were theoretically predicted and discussed under the ideal conditions that membrane pore size and particle size distribution are normal. The simulated results showed that there was an optimum pore size in the filtration of suspensions which maximized permeate flux, and the optimum pore size was influenced by the size and size distribution of the particulates.
Keywords:ceramic membrane  structure parameters  permeate flux  
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