苯、甲苯和对二甲苯二元和三元系的汽液平衡

VLE OF BINARY AND TERNARY SYSTEMS FOR BTX MIXTURES

本文在改进的Dvorak-Boublik平衡釜中测定了101.33kPa下的苯、甲苯和对二甲苯三组二元系和一组三元系的汽液平衡(VLE)数据。对二元的实验数据作了热力学一致性检验和Wilson方程关联,又由回归二元数据得到的Wilson方程参数推算了三元VLE数据,并将其与测定的数据作了比较,两者符合得较好。

The VLE data of three binary systems and a ternary system comprising benzen, toluene and pxylene are measured in a modified Dvarak-Boublik equilibrium still at 101.33 kPa. The thermodynamic consistency is checked for the binary systems data and the Wilson Equation is used to correlate the data. The VLE data for the ternary system are predicted by Wilson equation parameters which are obtained by regressing the data of the binary systems. The predicted data are corollated with the experimental values and a satisfactory agreement is found.