UNIFAC模型预测乙烯基环己烯—乙烯基降冰片烯气液相平衡数据

Prediction of Vapor-liquid Equilibrium by UNIFAC model for Vinylcycohexane-5-ethenyl-2-bicyclohept-2-ene

以乙烯基环己烯—乙烯基降冰片烯为体系 ,在低压下 ,将气相视为理想气体 ,液相为非理想溶液的情况下 ,用UNIFAC模型估算了液相活度系数 ,得到了在 8 0kPa下此二元体系的气液平衡数据 ,并与文献值比较 ,拟合结果较好。结果表明在缺乏此体系的气液平衡数据时 ,可以用UNIFAC模型估算作为基础数据 ,以便顺利进行工程设计。

The vapor-liquid equilibrium calculation for vinylcycohexane-5-ethenyl-2-bicyclohept-2-ene system at low pressures was performed.The liquid-phase activity coefficients were estimated by UNIFAC model methodwhile the vapor-phase was considerd to be ideal gas.The vapor-liquid equilibrium data were given at the pressure of 8.0 kPa.The prediction results were good compared with the literature data.