Experimental data and modeling for excess enthalpies of 2-Pentanol with n-alkanes(C7–C9) at T =(293.15, 298.15 and 303.15) K  

作　　者：Dongwei Wei Mengying Li Jing Ma Baohe Wang 

机构地区：[1]Key Laboratory for Green Chemical Technology of Ministry of Education,Research and Development Center for Petrochemical Technology,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Journal of Chemical Engineering》2020年第6期1661-1669,共9页中国化学工程学报（英文版）

摘　　要：Excess molar enthalpies,H^E,for the binary mixtures of 2-pentanol with n-alkanes(n-heptane,n-octane,and nnonane)have been determined at three different temperatures T=(293.15,298.15 and 303.15)K and normal atmospheric pressure over the entire composition range using a Calvet microcalorimeter.All mixtures show endothermic mixing with the maximum values of the excess enthalpies occurring in the n-alkane-rich region.The H^Edata are smoothed using Redlich–Kister equation.The applicability of the Treszczanowicz–Benson,ERAS,Renon–Prausnitz and Chen–Bagley models to correlate H^Eof studied mixtures is tested,and the agreement between experimental and theoretical results is satisfactory.Each model includes a self-association equilibrium constant that represents hydrogen bonding and an adjustable parameter that reflects physical interactions.

关 键 词：Excess molar enthalpy 2-Pentanol N-ALKANE Redlich–Kister equation Correlation 

分 类 号：TQ021.2[化学工程]