The influence of the calcination rate on silicalite-1 membranes

被引：19

作者：

Jareman, F ^{[1
]}

Andersson, C ^{[1
]}

Hedlund, J ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Chem Technol, SE-97187 Lulea, Sweden

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2005年 / 79卷 / 1-3期

关键词：

MFI; membrane; calcination; defect formation;

D O I：

10.1016/j.micromeso.2004.10.032

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Silicalite-1 films with a thickness of 500 nm on asymmetric alpha-alumina micro filtration filters were calcined at 500 degrees C with heating and cooling rates varying between 0.2 degrees C/min and 5.0 degrees C/min. The membranes were characterized with single gas permeation, porosimetry, and xylene isomer separation experiments. It was found that the quality of the prepared membranes was independent of the heating/cooling rate according to the single gas permeation and porosimetry characterization. Xylene isomer separation data was found to vary between the samples, but none of the variations could be attributed to the heating/cooling rate during calcination since the variations did not follow a trend but occurred randomly. It is thus concluded that the calcination rate does not influence the quality of these membranes. (c) 2004 Elsevier Inc. All rights reserved.

引用

页码：1 / 5

页数：5

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