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Nitrogen separation from natural gas by modified clinoptilolite

Published online by Cambridge University Press:  09 July 2018

H. Faghihian  and
M. Pirouzi
H. Faghihian*
Affiliation:
Department of Chemistry, University of Isfahan, Iran
M. Pirouzi
Affiliation:
Department of Chemistry, University of Isfahan, Iran
*
*E-mail: [email protected]
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Abstract

Separation of nitrogen, the major impurity of natural gas, is necessary for quality improvement of the gas. In this study, purified and some ion-exchanged forms of clinoptilolite were used to separate N2 from natural gas. Competitive adsorption of mixtures of N2, CH4 and C2H6 by Cu2+ (Cu-Cp)-, Zn2+ (Zn-Cp)-, Ni2+ (Ni-Cp)- and Mn2+ (Mn-Cp)-exchanged samples was studied at different pressures and ambient temperature. Among the cations studied, Cu2+ has the lowest selectivity towards N2. Samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, BET N2 adsorption and wet chemical analysis techniques.

Keywords

natural gasnitrogenclinoptilolitezeoliteadsorption
Type
Research Article
Information
Clay Minerals , Volume 44 , Issue 3 , September 2009 , pp. 289 - 292
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2009

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