乙二醇-1,4-丁二醇二元物系6.67kPa下汽液平衡研究Investigation on Vapor-Liquid Equilibrium for Binary System of Ethylene Glycol and 1,4-Butylene Glycol under 6.67 k Pa
陈卫航,李清亚,蒋元力,王训遒,蒋登高
摘要(Abstract):
煤制乙二醇过程中产生的副产物1,4-丁二醇对获得高纯度的乙二醇有着重要影响。采用真空精馏方法分离提纯,进行设计计算时,需要乙二醇-1,4-丁二醇汽液平衡数据。为此在6.67 k Pa压力下测定了乙二醇-1,4-丁二醇的汽液相平衡数据,并进行了热力学一致性检验,结果表明实验数据符合热力学一致性。分别用Wilson和NRTL模型对实验数据进行关联,发现两个模型误差都不大,均可满足工程设计的需要。
关键词(KeyWords): 汽液平衡;乙二醇;1,4-丁二醇;Wilson模型;NRTL模型
基金项目(Foundation): 河南省重大科技专项(豫科计【2011】6号)
作者(Author): 陈卫航,李清亚,蒋元力,王训遒,蒋登高
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