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Highly Selective, High‐Capacity Separation of o‐Xylene from C8 Aromatics by a Switching Adsorbent Layered Material

Wang, Shi‐Qiang ; Mukherjee, Soumya ; Patyk‐Kaźmierczak, Ewa ; Darwish, Shaza ; Bajpai, Alankriti ; Yang, Qing‐Yuan ; Zaworotko, Michael J.

Angewandte Chemie International Edition, 2019-05, Vol.58 (20), p.6630-6634 [Periódico revisado por pares]

Weinheim: Wiley Subscription Services, Inc

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Título:
Highly Selective, High‐Capacity Separation of o‐Xylene from C8 Aromatics by a Switching Adsorbent Layered Material
Autor: Wang, Shi‐Qiang ; Mukherjee, Soumya ; Patyk‐Kaźmierczak, Ewa ; Darwish, Shaza ; Bajpai, Alankriti ; Yang, Qing‐Yuan ; Zaworotko, Michael J.
Assuntos: Adsorptivity ; Aromatic compounds ; C8 aromatics ; Crystal structure ; Energy efficiency ; Ethylbenzene ; Kinetics ; nonporous layered materials ; Physical properties ; physisorptive separation ; Purification ; Query languages ; Selectivity ; Separation ; square lattice coordination networks ; Switching ; switching behavior ; Xylene
É parte de: Angewandte Chemie International Edition, 2019-05, Vol.58 (20), p.6630-6634
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: Purification of the C8 aromatics (xylenes and ethylbenzene) is particularly challenging because of their similar physical properties. It is also relevant because of their industrial utility. Physisorptive separation of C8 aromatics has long been suggested as an energy efficient solution but no physisorbent has yet combined high selectivity (>5) with high adsorption capacity (>50 wt %). Now a counterintuitive approach to the adsorptive separation of o‐xylene from other C8 aromatics involves the study of a known nonporous layered material, [Co(bipy)2(NCS)2]n (sql‐1‐Co‐NCS), which can reversibly switch to C8 aromatics loaded phases with different switching pressures and kinetics, manifesting benchmark o‐xylene selectivity (SOX/EB≈60) and high saturation capacity (>80 wt %). Structural insight into the observed selectivity and capacity is gained by analysis of the crystal structures of C8 aromatics loaded phases. A nonporous square lattice (sql) coordination network, sql‐1‐Co‐NCS, exhibits switching behavior triggered by C8 aromatics. Separation of o‐xylene from C8 aromatics isomers was achieved by combining high selectivity and high uptake in one material for the first time.
Editor: Weinheim: Wiley Subscription Services, Inc
Idioma: Inglês

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Highly Selective, High‐Capacity Separation of o‐Xylene from C8 Aromatics by a Switching Adsorbent Layered Material

Wang, Shi‐Qiang ; Mukherjee, Soumya ; Patyk‐Kaźmierczak, Ewa ; Darwish, Shaza ; Bajpai, Alankriti ; Yang, Qing‐Yuan ; Zaworotko, Michael J.

Weinheim: Wiley Subscription Services, Inc

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