IMPORTANCE OF THE REAL BEHAVIOUR OF THE VAPOUR PHASE FOR THE EVALUATION OF VAPOUR-LIQUID EQUILIBRIUM DATA.

Julia Lukacs, Sandor Kemeny, Joszef Manczinger, Karoly Tettamanti

Research output: Contribution to journalArticle

Abstract

Vapor-liquid equilibrium calculations often ignore the nonideal behavior of the vapor phase. In this paper, the justification of neglect is investigated on measured P-v-T data of pure organic solvents and their binary mixtures, and on published data. Except for systems containing components strongly associating in the vapor phase, vapor correction was found to be essential only for activity coefficient values in the liquid phase close to unity, and for polar molecules. P-v-T data were determined in a Boyle's apparatus. Mathematical statistical methods are used to establish and develop the test method and to evaluate the results.

Original languageEnglish
Pages (from-to)47-67
Number of pages21
JournalPeriodica Polytechnica Chemical Engineering
Volume20
Issue number1
Publication statusPublished - Jan 1 1976

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ASJC Scopus subject areas

  • Chemical Engineering(all)

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