Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane

CIESC Journal

Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane

董军航¹; 王沛¹; 徐南平¹; 时钧¹; Jerry Y.S.Lin²

¹ Membrane Science & Technology Research Center, Nanjing University of Chemical Technology, Nanjing 210009, China
² Department of Chemical Engineering, University of Cincinnati, Cincinnati, Ohio OH 45221, USA

收稿日期:1997-08-18 修回日期:1900-01-01 出版日期:1998-09-28 发布日期:1998-09-28
通讯作者: 董军航

Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane

Dong Junhang¹; Wang Pei¹; Xu Nanping¹; Shi Jun¹; Jerry Y.S.Lin²

¹ Membrane Science & Technology Research Center, Nanjing University of Chemical Technology, Nanjing 210009, China
² Department of Chemical Engineering, University of Cincinnati, Cincinnati, Ohio OH 45221, USA

Received:1997-08-18 Revised:1900-01-01 Online:1998-09-28 Published:1998-09-28
Contact: Dong Junhang

摘要/Abstract

摘要： The pore size distribution (PSD) measured by the gas bubble point (GBP) method of ceramic microfiltration (MF) membranes
prepared by suspension technique was found to be significantly influenced by the membrane thickness. A culm-like model for
pore structure was introduced to characterize the membrane pores instead of the conventional model which does not reflect the
radius variation along the pore passages and is unable to explain the thickness effect on the membrane PSD. A laminate
structure, taking the culm-like model for pore structure into consideration, was hypothesized for ceramic MF membranes. A
mathematical model was then established to quantitatively describe the relationship between the membrane number PSD and the
membrane thickness. Good results were obtained for the correlation of mean pore size and simulation of the PSD for ceramic MF
membranes.

关键词: modeling;pore structure;pore size distribution;thickness;ceramic membrane

Abstract: The pore size distribution (PSD) measured by the gas bubble point (GBP) method of ceramic microfiltration (MF) membranes
prepared by suspension technique was found to be significantly influenced by the membrane thickness. A culm-like model for
pore structure was introduced to characterize the membrane pores instead of the conventional model which does not reflect the
radius variation along the pore passages and is unable to explain the thickness effect on the membrane PSD. A laminate
structure, taking the culm-like model for pore structure into consideration, was hypothesized for ceramic MF membranes. A
mathematical model was then established to quantitatively describe the relationship between the membrane number PSD and the
membrane thickness. Good results were obtained for the correlation of mean pore size and simulation of the PSD for ceramic MF
membranes.

Key words: modeling, pore structure, pore size distribution, thickness, ceramic membrane

董军航, 王沛, 徐南平, 时钧, Jerry Y.S.Lin. Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane[J]. CIESC Journal.

Dong Junhang, Wang Pei, Xu Nanping, Shi Jun, Jerry Y.S.Lin. Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane[J]. .

Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane

Modeling of the Relationship Between Pore Size Distribution and Thickness of Ceramic MF Membrane

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