| 초록 |
Ethane-selective adsorbents for separating ethane (C2H6)/ethylene (C2H4) gas mixture have attracted considerable interest as promising alternatives to conventional cryogenic distillation because of the possibility of directly producing high-purity C2H4(>99.95%). Herein, CAU-3-NDCA was evaluated for use as a C2H6-selective adsorbent for separating a C2H6/C2H4 gas mixture. The separation performance was investigated using single-component gas isotherms, ideal adsorbed solution theory calculations, dynamic breakthrough experiments for gas mixture, and molecular simulations. CAU-3-NDCA displayed exceptional adsorption capacity (9.2-10.2 mmol g-1 at 15 bar), good C2H6/C2H4 selectivity (1.44-1.56), and C2H4 productivity of 25.7 Lstp kg-1 under a 10/90 (v/v) C2H6/C2H4 gas mixture, respectively. |
