Molar enthalpy of vaporization of ethanol–gasoline mixtures and their colloid state

Vapour pressure measurements are used to evaluate the enthalpy of vaporization of ethanol–gasoline mixtures. Partial molar values are also derived. The dispersed structure of ethanol–gasoline fuel is studied for the first time using the method of correlation spectroscopy of scattered light. A large...

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Bibliographic Details
Published in:Fuel (Guildford) 2007-02, Vol.86 (3), p.323-327
Main Authors: Balabin, Roman M., Syunyaev, Rustem Z., Karpov, Sergey A.
Format: Article
Language:English
Subjects:
Chemical engineering
Chemical Sciences
Dispersed structure
Enthalpy of vaporization
Ethanol–gasoline fuel
or physical chemistry
Theoretical and
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Summary:Vapour pressure measurements are used to evaluate the enthalpy of vaporization of ethanol–gasoline mixtures. Partial molar values are also derived. The dispersed structure of ethanol–gasoline fuel is studied for the first time using the method of correlation spectroscopy of scattered light. A large range of dispersed particle sizes in different alcohol–gasoline systems is found. The dependence of the mean radius of drops on ethanol content is determined. It is found that coalescence phenomenon occurs in the systems when extra ethanol is added.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2006.08.008