Effect of Separating Agent in Extractive Distillation

Autor:	N. N. Kulov, V. A. Lotkhov, S. Ya. Kvashnin
Rok vydání:	2020
Předmět:	Materials science Relative volatility Phase equilibrium General Chemical Engineering Extractive distillation Thermodynamics Separating agent General Chemistry Real structure Inversion (discrete mathematics)
Zdroj:	Theoretical Foundations of Chemical Engineering. 54:172-177
ISSN:	1608-3431 0040-5795
DOI:	10.1134/s0040579520010145
Popis:	The possibility of the formation of practically nonvolatile molecular complexes between the components of mixture and the separating agent of various compositions has been shown using the benzene–heptane–N-methylpyrrolidone system as an example. When modeling the vapor–liquid phase equilibrium, as a rule, the real structure of the solution is not taken into account, assuming the monomolecular structure of the substances contained in the solution. This significantly affects the real values ​​of coefficients of relative volatility, leading to the appearance of concentration inversion. The values ​​of fractions of substances in a monomolecular form are experimentally determined.
Databáze:	OpenAIRE
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