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- W4386002934 abstract "The acquisition of polymer-grade (≥99.95%) C2H4 poses a challenge due to the presence of ethane (C2H6) having similar physical and chemical properties. Consequently, the one-step purification of C2H4 becomes a crucial and demanding process. In this study, we synthesized ZIF-78 with a GME configuration using different metal sources (Zn, Co). Both substances have been identified as ethane-selective adsorbents with excellent thermal stability. The BET surface area of ZIF-78-Co (748 m2/g) surpasses that of ZIF-78-Zn (585 m2/g), and the former exhibits a higher Qst value for C2H6, resulting in enhanced adsorption capacity for C2H6 (50.61 cm3/g) and selectivity for C2H6/C2H4 (1.71) compared to ZIF-78-Zn (48.97 cm3/g, 1.46) at 298 K and 1 bar. GCMC calculations indicate that C2H6 has a stronger interaction with the ZIF-78-Co framework. Breakthrough experiments for the C2H6/C2H4 (50:50, v/v) mixture at 298 K and 1 bar demonstrate that ZIF-78-Co achieves separation in approximately 5 min/g, outperforming ZIF-78-Zn. And the separation time for ZIF-78-Co in the C2H6/C2H4 (10:90, v/v) mixture was 9 min/g. Furthermore, ZIF-78-Co exhibits excellent structural stability, thermal stability, water stability, and acid-base stability. Therefore, ZIF-78-Co holds promising prospects for practical industrial separation. Additionally, we hope that our findings inspire further experimentation on alternative metal ethane adsorbents." @default.
- W4386002934 created "2023-08-20" @default.
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- W4386002934 date "2023-08-01" @default.
- W4386002934 modified "2023-10-12" @default.
- W4386002934 title "Enhanced ethane/ethylene separation based on metal regulation in zeolitic imidazolate frameworks" @default.
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- W4386002934 doi "https://doi.org/10.1016/j.cjsc.2023.100147" @default.
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