ADSORPTION EQUILIBRIUM OF ETHYLENE-CARBON DIOXIDE MIXTURE ON ZEOLITE ZSM5 AND ITS CORRELATION

• 作 者: 王金渠 张永春 Ma Yi Hua Li Haiqing Tang Tude
• 机 构: School of Chemical Engineering Dalian University of Technology,School of Chemical Engineering Dalia
• 出 处: Journal of Chemical Industry and Engineering
• 发表日期: 1992年02期
• 关键词: isotherms exchanged thermodynamic adsorbed isotherm dioxide radius adsorbent gas

Binary gas mixture adsorption equilibrium data for the ethylene-carbon dioxide system were obtained for cation exchanged forms of ZSM5 (Li~+, Na~+, K~+, Rb~+, Mg~(+2), Ca~(+2), Sr~(+2), and Ba~(+2)) for the gas phase CO_2 mole fracion of 0.766 at 308K and 101. 3kPa. The experimental adsorption phase diagrams were obtained for CO_2-C_2H_4 on NaZSM5 and MgZSM5. Single component adsorption isotherms for CO_2 and C_2H_4 were also obtained for these two zeolites. The single component data were used to obtain parameters derived in the vacancy solution model (VSM) and the statistical thermodynamic model(STM). These parameters were, in turn, used to predict binary mixture isotherms for these two zeolites. The agreement between experimental data and predicted value is generally good.

Binary gas mixture adsorption equilibrium data for the ethylene-carbon dioxide system were obtained for the exchanged patterns of ZSM5 (Li ~ +, Na ~ +, K ~ +, Rb ~ +, Mg ~ (+2) ), Sr ~ (+2), and Ba ~ (+2)) for the gas phase CO_2 mole fracion of 0.766 at 308K and 101.3 kPa. The experimental adsorption phase diagrams were obtained for CO_2-C_2H_4 on NaZSM5 and MgZSM5. Single The single component data were used to obtain parameters derived in the vacancy solution model (VSM) and the statistical thermodynamic model (STM). These parameters were, in turn, used to predict binary mixture isotherms for these two zeolites. The agreement between experimental data and predicted value is generally good.