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A Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene



Libo Li, Rui-Baio Lin, Rajamani Krishna, Xiaoqing Wang, Bin Li, Hui Wu, Jinping Li, Wei Zhou, Banglin Chen


The removal of trace amount of propyne from propylene is critical for the production of polymer-grade propylene. We herein report the first example of metal-organic frameworks of flexible-robust nature for the efficient propyne/propylene separation. The strong binding affinity and suitable pore confinement for propyne account for its high uptake capacity and selectivity, as evidenced by neutron powder diffraction studies and density functional theory calculations. The purity of obtained propylene is over 99.9998% as demonstrated by experimental breakthrough curves of 1/99 propyne/propylene mixture.
Journal of American Chemical Society


Porous materials, Gas separation


Li, L. , Lin, R. , Krishna, R. , Wang, X. , Li, B. , Wu, H. , Li, J. , Zhou, W. and Chen, B. (2017), A Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene, Journal of American Chemical Society, [online], (Accessed June 19, 2024)


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Created June 14, 2017, Updated October 12, 2021