【摘 要】
：
Ag+-exchanged resins are prepared and studied for ethylene/ethane separation by adsorption. OnAg+-exchanged S9, at 25℃ and 0.1013 MPa, the equilibrium adsorbed
【机 构】
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Department of Environmental Engineering
【基金项目】
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教育部留学回国人员科研启动基金;
论文部分内容阅读
Ag+-exchanged resins are prepared and studied for ethylene/ethane separation by adsorption. OnAg+-exchanged S9, at 25℃ and 0.1013 MPa, the equilibrium adsorbed amount for C2H4 is 0.992 mmol.g-1, andthe adsorption ratio for C2H4/C2H6 is 3.56. The adsorption capacity can be restored almost completely at 25℃and 75℃, and the desorption residual amount is less than 0.01 mmol.g-1. For the adsorption consisting of physicaladsorption and π-complexation with energy heterogeneity, the equilibrium data are correlated with Langmuir-Freundlich isotherm equation. Furthermore, the heat of adsorption and the overall diffusion time constants arecalculated from the experimental data. Considering all the adsorption characteristics, the application potential forindustrial adsorption process is discussed.
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