含辛烯醛体系的液液、汽液相平衡研究

Liquid-Liquid Equilibrium and Vapor-Liquid Equilibrium for Containing Octylenic Aldehyde Systems

测定了水-辛烯醛、水-正丁醇二元系在常压下的液液平衡数据及26.66kPa下的正丁醇-辛烯醛二元系和水-正丁醇-辛烯醛三元系的汽液平衡数据.由测定的3对二元数据求取了NRTL常数及有规参数,并与三元数据进行拟合,计算值与实验值符台良好,液液平衡与汽液平衡得到了统一的关联.

Liquid-liquid equilibrium data were measured for the binary systems of water-octylenic aldehyde and water-n-butanol under atmospheric pressure. Also the vapor-liquid equilibrium data under 26.66kPa pressure for n-butanol-octylenic aldehyde binary system and water-n-butanol-octylenic aldehyde ternary system were determined. From the equilibrium data determined for the above three binary systems, the NRTL constants and regular parameters are obtained and the VLE for the ternary system are predicted with the constants and parameters. A comparison of the predicted values with those measured shows satisfactory results. The liquid-liquid equilibrium and vapor-liquid equilibrium are unified in the correlation in this work.