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https://hdl.handle.net/2440/114332
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Type: | Journal article |
Title: | An experimental and simulation study of binary adsorption in metal-organic frameworks |
Author: | Yang, Y. Sitprasert, C. Rufford, T. Ge, L. Shukla, P. Wang, S. Rudolph, V. Zhu, Z. |
Citation: | Separation and Purification Technology, 2015; 146:136-142 |
Publisher: | Elsevier BV |
Issue Date: | 2015 |
ISSN: | 1383-5866 1873-3794 |
Statement of Responsibility: | Ying Yang, Chatcharin Sitprasert, Thomas E. Rufford, Lei Ge, Pradeep Shukla, Shaobin Wang, Victor Rudolph, Zhonghua Zhu |
Abstract: | Abstract Large surface area, high gas adsorption capacity and convenient synthesis methods make microporous metal-organic frameworks (MOFs) a promising adsorbent for gas separation of CO2/N2 and CO2/CH4. This study examines the selective adsorption of CO2 on MOFs through the experimental measurement of equilibrium adsorption capacities from pure fluids (CO2, CH4 and N2) and mixtures of CO2/N2 and CO2/CH4. The derived adsorption selectivity from binary adsorption measurements is higher than the ideal selectivity. Comparing with direct binary adsorption experiments, the Ideal Adsorbed Solution Theory (IAST) model using best-fit parameters for Langmuir isotherms of each pure fluid provides satisfactory predictions for the binary mixtures of CO2/N2 and CO2/CH4. This combined experimental and modeling approach can provide criteria to screen metal-organic frameworks for the separation of gas mixtures at industrially relevant compositions, temperatures and pressures. |
Keywords: | MOFs; binary adsorption; gas selectivity; ideal adsorbed solution theory |
Description: | Available online 31 March 2015 |
Rights: | © 2015 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.seppur.2015.03.041 |
Published version: | http://dx.doi.org/10.1016/j.seppur.2015.03.041 |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
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