A morphological study of ceramic hollow fibre membranes: A perspective on multifunctional catalytic membrane reactors

被引:75
作者
Kingsbury, Benjamin F. K. [1 ]
Wu, Zhentao [1 ]
Li, K. [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England
基金
英国工程与自然科学研究理事会;
关键词
Asymmetric hollow fibre; Catalyst deposition; Pore size distribution; LOW-TEMPERATURE SCR; DEHYDROGENATION; NH3; NOX;
D O I
10.1016/j.cattod.2010.02.039
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Asymmetric ceramic hollow fibre membranes and membrane supports have been prepared using a combined phase inversion and sintering technique for use in a multifunctional catalytic membrane reactor. The asymmetric structure is such that the fibre may simultaneously function either as a porous membrane and a matrix for catalyst deposition, or as a porous support for the coating of a gas separation layer and a matrix for catalyst deposition. The effectiveness of catalyst deposition depends strongly on the pore size distribution of the membrane or membrane support, which is bimodal in nature and is affected by the calcination temperature and the fibre preparation parameters. The effect of the calcination temperature and preparation parameters on the pore size distribution and fibre morphology have been studied systematically with regard to catalyst deposition and fibre mechanical strength and a route to optimizing the fibre structure has been suggested. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:306 / 315
页数:10
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