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Issue 44, 2019
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Efficient separation of propane and propene by a hypercrosslinked polymer doped with Ag(i)

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Abstract

Porous hypercrosslinked polymers (HCPs) are attractive for large-scale separations because they are inexpensive, robust, scalable, and easy to functionalize. Here, we describe a series of microporous HCPs that were derivatized with sulfonic acid groups, then doped with silver (Ag(I)). The Ag-doped HCPs show a high selectivity towards olefins over paraffins, which is one of the most energy-intensive separations in the chemical industry. The separation capability of the HCP can be enhanced by fine-tuning the amount of Ag(I) in the HCP. Breakthrough measurements confirm excellent separation of propane and propene under flow conditions at 298 K and at 318 K. Metal-doped HCPs might lead in the future to a large energy savings compared to other energy-intensive gas separation methods such as distillation.

Graphical abstract: Efficient separation of propane and propene by a hypercrosslinked polymer doped with Ag(i)

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Publication details

The article was received on 11 Jul 2019, accepted on 16 Sep 2019 and first published on 31 Oct 2019


Article type: Paper
DOI: 10.1039/C9TA07510K
J. Mater. Chem. A, 2019,7, 25521-25525
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    Efficient separation of propane and propene by a hypercrosslinked polymer doped with Ag(I)

    A. Stephenson, B. Li, L. Chen, R. Clowes, M. E. Briggs and A. I. Cooper, J. Mater. Chem. A, 2019, 7, 25521
    DOI: 10.1039/C9TA07510K

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