Tailor-Made Microporous Metal–Organic Frameworks for the Full Separation of Propane from Propylene Through Selective Size Exclusion
- Hoffmann Institute of Advanced Materials (China); Rutgers Univ., Piscataway, NJ (United States)
- King Abdullah University of Science and Technology (KAUST), Thuwal (Saudi Arabia)
- Univ. degli Studi di Milano (Italy)
- Rutgers Univ., Piscataway, NJ (United States)
- Hoffmann Institute of Advanced Materials (China)
- Northeast Normal University (China)
- Chinese Academy of Sciences (CAS), Fujian (China)
- Univ. degli Studi di Milano (Italy); Samara State Technical University (Russia). Samara Center for Theoretical Materials Science (SCTMS)
Abstract Adsorptive separation of olefin/paraffin mixtures by porous solids can greatly reduce the energy consumption associated with the currently employed cryogenic distillation technique. Here, the complete separation of propane and propylene by a designer microporous metal–organic framework material is reported. The compound, Y 6 (OH) 8 (abtc) 3 (H 2 O) 6 (DMA) 2 (Y‐abtc, abtc = 3,3′,5,5′‐azobenzene‐tetracarboxylates; DMA = dimethylammonium), is rationally designed through topology‐guided replacement of inorganic building units. Y‐abtc is both thermally and hydrothermally robust, and possesses optimal pore window size for propane/propylene separation. It adsorbs propylene with fast kinetics under ambient temperature and pressure, but fully excludes propane, as a result of selective size exclusion. Multicomponent column breakthrough experiments confirm that polymer‐grade propylene (99.5%) can be obtained by this process, demonstrating its true potential as an alternative sorbent for efficient separation of propane/propylene mixtures.
- Research Organization:
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-08ER46491; DE‐FG02‐08ER‐46491
- OSTI ID:
- 1609983
- Alternate ID(s):
- OSTI ID: 1479537
- Journal Information:
- Advanced Materials, Vol. 30, Issue 49; ISSN 0935-9648
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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