Stable mixed metal-organic framework for efficient C2H6/C2H4 separation |
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| Authors: | Puxu LIU Chaohui HE Libo LI Jinping LI |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China;2.Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, China;3.Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China |
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| Abstract: | In view of lacking efficient ethane-selective adsorbent for ethane/ethylene separation, a highly stable microporous mixed metal-organic framework, termed as MUV-10(Mn), was synthesized by the solvothermal method and it could efficiently separate C2H6/C2H4 mixture. The structure and morphology of synthesized material was confirmed by XRD, SEM, TGA and BET, etc. Selectivity and corresponding adsorption heat of C2H6 and C2H4 were calculated based on single component adsorption results measured in details. The results show that MUV-10(Mn) features C2H6/C2H4 selectivity about 1.42 and can absorb more C2H6 than C2H4 at room temperature. And it has high acid, alkali and water vapor stability. Addtionally, dynamic breakthrough experiment showed MUV-10(Mn) could extracted low concentration of C2H6 from C2H6/C2H4 mixture (=1∶9 and 1∶15) to collect C2H4 gas with high purity, which indicates the promising future of MUV-10(Mn) in C2H4 purification. |
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| Keywords: | light hydrocarbons ethane ethylene adsorption separation metal-organic frameworks |
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