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Citation: Tian Yi-Ling, Han Ming, Chen Li, Feng Ji-Jun, Qin Ying. Study on Vapor-Liquid Phase Equilibria for CO₂-C₂H₅OH System[J]. Acta Physico-Chimica Sinica, ;2001, 17(02): 155-160. doi: 10.3866/PKU.WHXB20010213 shu

Study on Vapor-Liquid Phase Equilibria for CO₂-C₂H₅OH System

1.
Department of Chemistry,Tianjin University,Tianjin　300072

Received Date: 26 June 2000
Available Online: 15 February 2001

The vaporliquid phase equilibria of the binary system of CO2C2H5OH were measured for four isotherms between 60 ℃ and 180 ℃ under the pressure range of 5.0 MPa to 14.5 MPa.The measurements were carried out in a cylindrical autoclave with a moveable piston and a window allowing observation. The compositions,densities and molar volumes of the two coexisting phases are presented. The critical values Tc.pc,xc were predicted.We have correlated phase equilibrium data with the PengRobinson equation of state and the WongSandle mixture combination rule for this system.The calculated results agree fairly with the experimental data.
- High-pressure phase equilibrium;Ethanol;Carbon dioxide;　 Peng-Robinson equation of state
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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Vapor-Liquid Phase Equilibria for CO2-C2H5OH System

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通讯作者: 陈斌, bchen63@163.com

Study on Vapor-Liquid Phase Equilibria for CO₂-C₂H₅OH System