Dynamics of Unsteady-State Evaporation of Binary Mixtures in Closed Systems

Authors: Lotkhov V.A.; Dil'man V.V.; Vasilevskii D.I.; Lipatov D.A.

Source: Theoretical Foundations of Chemical Engineering, Volume 37, Number 2, March 2003 , pp. 131-136(6)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

The rate of unsteady-state evaporation of a stagnant layer of methanol–water, formic acid–water, ethanol–isopropanol, methanol–ethanol, and methanol–isopropanol binary solutions into an inert gas (helium or argon) is studied in a closed system. The ratio between the molecular weights of the components in a gas–liquid system is shown to have a substantial effect on the process kinetics. For the first time, a synergetic interaction between the components during unsteady-state mass transfer is observed. The experimental data satisfactorily agree with the calculated results.

Language: English

Document Type: Research article

Affiliations: 1: Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991 Russia

Publication date: 2003-03-01