- Exploiting the gate opening effect in a flexible MOF for selective adsorption of propyne from C1/C2/C3 hydrocarbons
- Journal of Materials Chemistry. A
- Volume | Issue number
- 4 | 3
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Van 't Hoff Institute for Molecular Sciences (HIMS)
The separation of propyne from light hydrocarbon mixtures is of technological importance but poses considerable technical challenges. This article reports on the potential of a flexible metal-organic framework [Cu(dhbc)(2)(4,4'-bipy)], with gate-opening characteristics, that exhibits adsorption selectivity in favor of propyne in a C1/C2/C3 mixture of hydrocarbons. The separation potential of the flexible MOF is established using a judicious combination of measurements of unary isotherms, IAST calculations of mixture adsorption equilibrium, transient breakthrough simulations, along with transient breakthrough experiments. Our multi-tier investigation strategy confirms that propyne can be selectively adsorbed from C1/C2/C3 hydrocarbons in fixed bed adsorbers that are commonly employed in the process industries.
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