文献类型：期刊文献

中文题名：醇/烃系统的分子热力学(Ⅱ)1-2-4模型应用于汽液平衡

英文题名：MOLECULAR THERMODYNAMICS FOR ALCOHOL - HYDROCARBON SYSTEMS (Ⅱ)APPLICATION OF 1 - 2 - 4 MODEL FOR VLE STUDYING

作者：洪建康[1];韩崇家[2];胡英[2]

机构：[1]上海医药设计院,上海200040;[2]华东化工学院化学系,上海200237

年份：1993

卷号：44

期号：1

起止页码：10

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：缔合模型;汽液平衡;醇/烃系统

外文关键词：alchol - hydrocarbon systems , association model, vapor - liquid equilibria

摘要：建立了1个醇/烃系统的分子热力学模型,用红外光谱法获得的醇的标准缔合常数应用于汽液平衡,能够很好地区分醇类缔合物质的化学作用和物理作用,所得化学参数和物理参数具有明确的物理意义.计算表明:本文提出的1-2-4缔合模型在应用1个二元可调参数的情况下能较好地描述含醇系统的汽液平衡性质.即使对于不同链长的正构醇采用统一的缔合常数,同样可获得较好的结果.
A molecular thermodynamic model for alcohol - hydrocarbon systems is presented. With the use of standard association constants obtained independently from infrared measurements, the chemical interaction in alcohol - hydrocarbon systems can be clearly distinguished from the physical interaction, chemical parameters and physical parameters are then uniquely determined. With one adjustable binary parameter, the proposed 1-2-4 model can satisfactorily describe vapor -liquid equilibria for alcohol -hydrocarbon systems. The results with accuracy of Dy = 0. 0122 can also be obtained if universal association constants independent of the chain length of alcohols are used.