SCI和EI收录∣中国化工学会会刊

›› 2010, Vol. 18 ›› Issue (6): 1000-1007.

• THERMODYNAMICS AND CHEMICAL ENGINEERING DATA • Previous Articles     Next Articles

Vapour-Liquid Equilibrium with a New Ebulliometer:Ester+Alcohol System at 0.5 MPa

P. Susial, A. Sosa-Rosario, R. Rios-Santana   

  1. School of Industrial Engineering, University of Las Palmas de Gran Canaria, Canary Islands, Spain
  • Received:2010-02-11 Revised:2010-07-01 Online:2010-12-28 Published:2010-12-28

Vapour-Liquid Equilibrium with a New Ebulliometer:Ester+Alcohol System at 0.5 Mpa

P. Susial, A. Sosa-Rosario, R. Rios-Santana   

  1. School of Industrial Engineering, University of Las Palmas de Gran Canaria, Canary Islands, Spain
  • 通讯作者: P. Susial, E-mail: psusial@dip.ulpgc.es

Abstract: A new dynamic ebulliometer is used to determine vapor-liquid equilibrium(VLE) data experimentally. In the equipment,both phases are recirculated. Its operation is a consequence of the Cotrell pump effect produced when the mixture is heated in a double-walled inverted vessel. The reliability of the apparatus is tested with the mixtures studied previously by various authors. VLE data for the binary systems of methyl acetate + methanol and the methyl acetate + ethanol at 0.5 MPa are determined. The experimental data are confirmed with the point-to-point test of van Ness,applying the Fortran program of Frendslund et al. In addition,the experimental results are compared with the UNIFAC(including different versions) and ASOG prediction models.

Key words: vapor-liquid equilibrium, vapor-liquid equilibrium apparatus, vapor pressure, alcohol

摘要: A new dynamic ebulliometer is used to determine vapor-liquid equilibrium(VLE) data experimentally. In the equipment,both phases are recirculated. Its operation is a consequence of the Cotrell pump effect produced when the mixture is heated in a double-walled inverted vessel. The reliability of the apparatus is tested with the mixtures studied previously by various authors. VLE data for the binary systems of methyl acetate + methanol and the methyl acetate + ethanol at 0.5 MPa are determined. The experimental data are confirmed with the point-to-point test of van Ness,applying the Fortran program of Frendslund et al. In addition,the experimental results are compared with the UNIFAC(including different versions) and ASOG prediction models.

关键词: vapor-liquid equilibrium, vapor-liquid equilibrium apparatus, vapor pressure, alcohol