Evaluation of the main diffusion path in zeolites from ZLC desorption curves

被引：22

作者：

Cavalcante, CL

Brandani, S

Ruthven, DM

机构：

[1] UNIV MAINE,DEPT CHEM ENGN,ORONO,ME 04469

[2] UNIV AQUILA,DIPARTIMENTO INGN CHIM & MAT,I-67040 MONTELUCO,LAQUILA,ITALY

[3] UNIV FED CEARA,DEPT CHEM ENGN,FORTALEZA,CEARA,BRAZIL

来源：

ZEOLITES | 1997年 / 18卷 / 04期

关键词：

diffusion; zeolite; offretite; erionite; ZLC;

D O I：

10.1016/S0144-2449(97)00014-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple method of distinguishing between one-dimensional and three-dimensional diffusion in zeolite crystals is suggested based on the difference in the expressions obtained for the zero-length column (ZLC) desorption curve for ''slab'' and ''spherical'' diffusion models. The application of this approach is illustrated by experimental data for diffusion in erionite (three-dimensional channel system) and offretite (one-dimensional channels). (C) Elsevier Science Inc. 1997.

引用

页码：282 / 285

页数：4

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