3.55kPa下乙二醇-乙苯汽液平衡数据的研究  

Isobaric vapor-liquid equilibrium(VLE) data of the binary system 1,2-Ethanediol+Ethylbenzene at 3.55kPa

作　　者：杨永利[1] 黄明辉 马晓迅[1] YANG Yongli HUANG Minghui MA Xiaoxun(School of Chemical Engineering, Collaborative Innovation Center for Shanbei Energy and Chemical Industry Development , Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Shannxi Research Center of Engineering Technology for Clean Coal Conversion,Shannxi Energy and Chemical Demonstration Base of International Scientific and Technological Cooperation, Northwest University, Xi＇an 710069, China PetroChina Yumen Oilfield Company, Yumen 735200, China)

机构地区：[1]西北大学化工学院/陕北能源化工产业发展协同创新中心陕北能源先进化工利用技术教育部工程研究中心陕西省洁净煤转化工程技术研究中心陕西省能源化工示范型国际科技合作基地,陕西西安710069 [2]中国石油玉门油田分公司,玉门735200

出　　处：《西北大学学报（自然科学版）》2017年第3期391-395,共5页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金重点项目(21536009);西安市科技局工业应用技术研发项基金资助项目(CXY09019)

摘　　要：为了分离乙二醇-1,2-丁二醇共沸体系,选取乙苯作为共沸剂,采用汽液双循环平衡釜(ZPH-1)测定了在3.55kPa下乙二醇-乙苯体系的汽液平衡数据,并用Herrington面积检验法和Van Ness点检验法对平衡数据进行热力学一致性检验,结果表明实验数据符合热力学一致性;通过Aspen Plus模拟软件进行回归,并分别用NRTL,UNIQUAC模型对实验数据进行关联,得到二元交互作用参数;将实验数据与模拟数据进行对比,两者基本一致。Using ethylbenzene as entrainer separates the azeotropic mixtures of Ethylene glycol and 1,2-Butanediol. A modified vapor-liquid bi-cireulating equilibrium still（ ZPH-1 ）was used to measure the isobaric vapor-liquid equilibrium （VLE） data for the binary system 1,2-Ethanediol ＋ Ethylbenzene at 3.55 kPa. The experimental data was confirmed using the Herrington Area test and Van Ness Point test. The liquid activity coefficient was calculated by the activity coefficient equation. The corresponding binary interaction parameters of nonrandom two-liquid（NRTL）and universal quasiehemieal（UNIQUAC） model were obtained by the data regression model of chemical process simulator software. Comparing the experimental data with calculated data, the experimental results were in accordance with the simulation.

关 键 词：汽液平衡数据 乙二醇 乙苯 二元交互参数 NRTL模型 UNIQUAC模型 

分 类 号：TQ031.1[化学工程]