Investigation of the interfacial properties for CO_2-methanol and CO_2-ethanol mixtures

作     者：FU Dong 

作者机构：School of Environmental Science and EngineeringNorth China Electric Power UniversityBaoding 071003China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2011年第54卷第5期

页      面：856-862页

核心收录：

学科分类：080705[工学-制冷及低温工程] 0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 0836[工学-生物工程] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 083203[工学-农产品加工及贮藏工程] 

基　　金：supported by the National Natural Science Foundation of China (21076070) the Fundamental Research Funds for the Central Universities (09MG13) 

主　　题：CO2-methanol CO2-ethanol cross-association density gradient theory interfacial properties 

摘      要：An equation of state (EOS) applicable for the interfacial properties of CO2-methanol and CO2-ethanol mixtures was established by combining the cross-association EOS and the density gradient theory (DGT). The correlated surface tensions of CO2-ethanol mixtures agreed well with the experimental data. The results illustrated the temperature and pressure dependence of the cross-association between CO2 and alcohol hydroxyls in the whole vapor-liquid surface,and the influence of the cross-association on the calculation of the surface tensions of binary mixtures.