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Vapor-Liquid Equilibrium Data of Carbon Dioxide+Methyl Propionate and Carbon Dioxide+Propyl Propionate Systems
Wei Xu*,Chuan-xin Xie,Hong-ling Li,Yi-ling Tian
Author NameAffiliationE-mail
Wei Xu* State Key Laboratory of Safty and Control for Chemical, Sinopec Qingdao Safety Engineering Institute, Qingdao 266071, China tdxuwei@yahoo.com.cn 
Chuan-xin Xie State Key Laboratory of Safty and Control for Chemical, Sinopec Qingdao Safety Engineering Institute, Qingdao 266071, China  
Hong-ling Li School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China  
Yi-ling Tian Department of Chemistry, Institute of Science, Tianjin University, Tianjin 300072, China  
Abstract:
High-pressure vapor-liquid equilibrium data for the binary systems of methyl propi-onate+carbon dioxide and propyl propionate+carbon dioxide were measured at pressure from 1.00 MPa to 12.00 MPa and temperature in the range from 313 K to 373 K. Experimen-tal results were correlated with the Peng-Robinson equation of state with the two-parameter van der Waals mixing rule. At the same time, the Henry's coefficient, partial molar enthalpy change and partial molar entropy change of CO2 during dissolution at different temperature were also calculated.
Key words:  Carbon dioxide, Methyl propionate, Propyl propionate, Vapor-liquid equilib-rium data, Henry's coefficient
FundProject:
Vapor-Liquid Equilibrium Data of Carbon Dioxide+Methyl Propionate and Carbon Dioxide+Propyl Propionate Systems
徐伟*,谢传欣,李洪玲,田宜灵
摘要:
利用可变体积高压釜,在313、333、353和373 K下,测定了CO2分别与丙烯酸甲酯和丙烯酸丙酯二元体系的气液两相平衡数据. 应用Peng-Robinson状态方程对实验数据进行计算,计算结果与实验结果具有较高的一致性. 还计算得到了不同温度和压力下CO2在丙烯酸酯溶解过程中的Henry系数、偏摩尔焓变和偏摩尔熵变.
关键词:  二氧化碳,丙烯酸甲酯,丙烯酸丙酯,相平衡,Henry系数
DOI:10.1088/1674-0068/23/03/317-324
分类号: