Chen, De-Li ; Shang, Hao ; Zhu, Weidong ; Krishna, Rajamani (2014) Transient breakthroughs of CO2/CH4 and C3H6/C3H8 mixtures in fixed beds packed with Ni-MOF-74 Chemical Engineering Science, 117 . pp. 407-415. ISSN 0009-2509
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.ces.2014.07.008
Abstract
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Metal-organic Frameworks; Fixed-bed Adsorber; Light Olefin/Paraffin Separation; CO2 Adsorption; Intra-crystalline Diffusion |
| ID Code: | 111794 |
| Deposited On: | 25 Sep 2017 13:06 |
| Last Modified: | 25 Sep 2017 13:06 |
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