Details

Autor(en) / Beteiligte

• Cao, Jian-Wei
• Mukherjee, Soumya
• Pham, Tony
• Wang, Yu
• Wang, Teng
• Zhang, Tao
• Jiang, Xue
• Tang, Hui-Juan
• Forrest, Katherine A
• Space, Brian
• Zaworotko, Michael J
• Chen, Kai-Jie

Titel

One-step ethylene production from a four-component gas mixture by a single physisorbent

Ist Teil von

• Nature communications, 2021-11, Vol.12 (1), p.6507-6507, Article 6507

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• One-step adsorptive purification of ethylene (C H ) from four-component gas mixtures comprising acetylene (C H ), ethylene (C H ), ethane (C H ) and carbon dioxide (CO ) is an unmet challenge in the area of commodity purification. Herein, we report that the ultramicroporous sorbent Zn-atz-oba (H oba = 4,4-dicarboxyl diphenyl ether; Hatz = 3-amino-1,2,4-triazole) enables selective adsorption of C H , C H and CO over C H thanks to the binding sites that lie in its undulating pores. Molecular simulations provide insight into the binding sites in Zn-atz-oba that are responsible for coadsorption of C H , C H and CO over C H . Dynamic breakthrough experiments demonstrate that the selective binding exhibited by Zn-atz-oba can produce polymer-grade purity (>99.95%) C H from binary (1:1 for C H /C H ), ternary (1:1:1 for C H /C H /C H ) and quaternary (1:1:1:1 for C H /C H /C H /CO ) gas mixtures in a single step.