摘要
本工作研究了用双循环法测定等液相组成汽-液平衡数据的特点,建立了一种新型的SG—Ⅱ双循环沸点仪,测定了乙醇-正已烷体系15个浓度时的等液相组成数据,并推算了该体系298.15K至328.15K时的等温汽-液平衡、过量自由焓和微分汽化热。
Experimental determination of VLE data under constant liquid composition (isoplethic VLE data )by double circulation method was studied. By use of a new type double circulation ebulliometer, Isoplethic VLE data were determined under 15 different concentrations for the system ethanol-n-hexane in a temperature range from 298K to 331K. Isothermal VLE. excess free enthalpy, and differential heat of vaporization are calculated from 298. 15K to 328. 15K.
出处
《高校化学工程学报》
EI
CAS
CSCD
1990年第4期302-312,共11页
Journal of Chemical Engineering of Chinese Universities
基金
国家教委博士点基金
关键词
双循环法
等液相
汽液平衡
Isoplethic VLE, Ethanol-n-hexane, Boiling point apparatus, Differential heat of vaporization, Excess free enthalpy
