【摘要】 用UNIFAC及其修正模型估算了含芳香烃、二甲苯同分异构体和极性物质体系的汽液平衡,并将计算结果与实验数据相比较。结果表明,原始UNIFAC模型对含二甲苯同分异构体体系计算精度高于UNIFAC(Larsen)模型和UNIFAC(Dortmund)模型好,而对于极性或弱极性体系,则后2种模型结果较令人满意,但对于强极性体系偏差较大。更多还原

【Abstract】 Estimate vapor-liquid equilibrium using UNIFAC and its models for systems containing aromatic hydrocarbon,xylene isomers and polar compound.Compare with experiment values,the results shows that:the calculation values of systems containing xylene isomers using original UNIFAC model is better than UNIFAC(Larsen) model and UNIFAC(Dortmund) model,which meet the estimation request;the later two models is better than original UNIFAC model for polar systems,but the deviation is large for strong polar systems.更多还原