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Permeation of Adsorbable and Non-Adsorbable Gases in Microporous Zeolite Membranes

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Patrícia F. Lito , Ana L. Magalhães and Carlos M. Silva

CICECO, Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal

Daniel L. A. Fernandes

CESAM, Departamento de Química, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal

J. Chem. Educ., 2009, 86 (8), p 976

DOI: 10.1021/ed086p976

Publication Date (Web): August 1, 2009

Section:

History, Education, and Documentation

Abstract

A simple experiment is described to study the permeation of adsorbable and non-adsorbable gases through microporous membranes. The permeation fluxes of nitrogen and carbon dioxide through a zeolite membrane are measured at two temperatures for different trans-membrane pressure drops. Single gas permeances and the corresponding ideal selectivities are calculated as function of the pressure drop. Based on the experimental results, students are able to identify and discriminate transport mechanisms occurring in porous media and gain insight on fundamentals of membrane and diffusion processes.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Analytical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Gases

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Synthesis of Foam-Shaped Nanoporous Zeolite Material: A Simple Template-Based Method
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Journal of Chemical Education2012 89 (2), 276-279
- Synthesis of Foam-Shaped Nanoporous Zeolite Material: A Simple Template-Based Method
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  Journal of Chemical Education2012 89 (2), 276-279
  Nanoporous zeolite foam is an interesting crystalline material with an open-cell microcellular structure, similar to polyurethane foam (PUF). The aluminosilicate structure of this material has a large surface area, extended porosity, and mechanical ...
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