Isobaric Vapor鈥揕iquid Equilibrium for the Binary Systems (Diethylamine + Ethanol), (Ethanol + N,N-Diethylethanolamine), and (Diethylamine + N,N-Diethylethanolamine) at p

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• 作者：Changsheng Yang ; Ping Zhang ; Zhenli Qin ; Yang Feng ; Hao Zeng ; Feizhong Sun
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：March 13, 2014
• 年：2014
• 卷：59
• 期：3
• 页码：750-756
• 全文大小：337K
• 年卷期：v.59,no.3(March 13, 2014)
• ISSN：1520-5134

文摘

In this work, isobaric vapor鈥搇iquid equilibrium (VLE) data for the three binary systems composed of diethylamine (1) + ethanol (2), ethanol (1) + N,N-diethylethanolamine (2), and diethylamine (1) + N,N-diethylethanolamine (2) at p = (80.0 and 40.0) kPa have been measured using a modified Rose鈥揥illiams still. All of the experimental data passed thermodynamic consistency tests, including the area test of Herington and the point test of Van Ness and co-workers. No azeotropic behavior was observed at the two reduced pressures. The Wilson, NRTL, and UNIQUAC activity coefficient models were used to correlate the experimental data. The obtained results indicated that the UNIQUAC model was more suitable than the Wilson and NRTL models for correlating the measured isobaric VLE data.