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本工作采用恒温流通法测定了环氧乙烷—乙醛、环氧乙烷—水、乙醛—水三组二元体系及环氧乙烷—乙醛—水三元体系在10℃条件下的汽液平衡数据。用Wilson方程对测得的汽液平衡数据进行热力学关联,确定了三对Wilson能量参数。所测三对二元数据与文献值基本相符,三元体系的计算值与实测值一致。用面积法对上述汽液平衡数据进行热力学一致性检验,结果令人满意。
In this work, three binary systems of ethylene oxide-acetaldehyde, ethylene oxide-water, acetaldehyde-water and ethylene oxide-acetaldehyde-water ternary system were tested at constant temperature Vapor-liquid balance data. The Wilson equation was used to thermodynamically correlate the measured vapor-liquid equilibrium data to determine three pairs of Wilson energy parameters. The measured three pairs of binary data and the literature basically consistent with the calculated value of the ternary system consistent with the measured value. The area method was used to test the thermodynamic consistency of the vapor-liquid equilibrium data above, and the results were satisfactory.