Physico-chemical study of systems involving ethanol, promising for use as a biofuel

FUEL

卷:284

Article

Senina, Alina¹  Margin, Vladimir¹  Golikova, Alexandra¹  Tsvetov, Nikita²  Sadaeva, Anna¹  Toikka, Maria¹ 

[1] St Petersburg State Univ, Dept Chem Thermodynam & Kinet, Univ Skiy Prospect 26, St Petersburg 198504, Russia

[2] Murmansk Arctic State Univ, Branch Apatity, Lesnaja Str 29, Apatity 184209, Murmansk Oblast, Russia

关键词: Ethanol;    Biofuel;    Thermodynamics;    Phase equilibrium;    NRTL;    UNIFAC;    Chemical technology;   

DOI  :  10.1016/j.fuel.2020.119099

来源: Elsevier

【 摘 要 】

The use of renewable biofuels is a necessity today and entails the improvement and optimization of related processes. The work presents new thermodynamic parameters necessary to optimize the operation of internal combustion engines, improve characteristics and predict the properties of biofuels. Based on the obtained liquid-liquid equilibrium (LLE) data, binodal curves and surfaces are constructed for a system containing ethanol, propionic acid, ethyl propionate and water at 293.15 K and 303.15 K and atmospheric pressure, as well as model calculations of vapor-liquid equilibrium (VLE) data were carried out according to literature results on compositions of chemically equilibrium (CE) mixtures. The results of modeling on liquid-phase and vapor-liquid equilibrium using NRTL and UNIFAC models respectively are presented. A comparative analysis of the results under the temperature conditions of this study is given.

【 授权许可】

Free