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Transient breakthroughs of CO2/CH4 and C3H6/C3H8 mixtures in fixed beds packed with Ni-MOF-74 by De-Li Chen; Hao Shang; Weidong Zhu; Rajamani Krishna is a Engineering article available to read on EtoBox.

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The metal-organic framework Ni-MOF-74 was synthesized and then characterized by XRD, SEM, and N2 adsorption techniques. The unary isotherms of CO2, CH4, C3H6, and C3H8 on Ni-MOF-74 were measured by means of a volumetric method. The Langmuir–Freundlich model appropriately describes the adsorption equilibrium data. The selective separations of two mixtures CO2/CH4 and C3H6/C3H8 on Ni-MOF-74 were experimentally investigated by a breakthrough-column technique. Simulations of transient breakthroughs for the two mixtures agree well with the experimental data. In addition, with the inclusion of intra-crystalline diffusion into the simulations, the quality of the simulated breakthrough curves are improved and agree better with the experimental data. The results indicate that Ni-MOF-74 might be a candidate for the removal of C3H6 from C3H6/C3H8 mixtures and for the efficient separation of CO2 from CH4.

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Author

De-Li Chen; Hao Shang; Weidong Zhu; Rajamani Krishna

Publisher

Elsevier BV

Published

2014

Language

EN

Field

Engineering (Physical Sciences)