RT info:eu-repo/semantics/article
T1 Thermophysical Analysis and Molecular Modeling of 2-Propanol–Glycol Ether Mixtures Between 293.15 K and 323.15 K: Implications for Renewable Fuel Formulations
A1 Samadi, Khaoula
A1 Lifi, Mohamed
A1 Muñoz Rujas, Natalia
A1 M’hamdi Alaoui, Fatima Ezzahrae
A1 Aguilar Romero, Fernando
K1 2-propanol
K1 Glycol ethers
K1 Local composition models
K1 PC-SAFT EoS
K1 Peng–Robinson EoS
K1 Redlich–Kister correlation
K1 Renewable energy
K1 Termodinámica química
K1 Thermochemistry
K1 Ingeniería química
K1 Chemical engineering
AB Short-chain alcohols and glycol ethers are increasingly being considered as promising additives or components in biofuels due to their favorable physicochemical properties and alignment with the growing demand for sustainable and low-emission energy sources in the transportation sector. This study presents experimental data for five binary mixtures of 2-propanol with glycol ethers: 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, 2-methoxyethanol, 2-phenoxyethanol, and 2-butoxyethanol. Measurements of excess molar enthalpy (), density (ρ), speed of sound (u), and refractive index (nD) were performed over the temperature range 293.15 K–323.15 K at 0.1 MPa. Derivative thermodynamic properties, excess molar volume (), isentropic compressibility (ks), and refractive index deviation (ΔnD), were calculated from the experimental data. Density data were correlated using PC-SAFT and Peng–Robinson equations of state, while polynomial equations were employed to fit ρ, u, nD, and ks as functions of composition. The Redlich–Kister equation was used to fit and ΔnD. Excess molar enthalpy () was modeled using both the Redlich–Kister correlation and thermodynamic activity coefficient models, UNIQUAC, NRTL, and Modified UNIFAC, to interpret molecular interactions. All the studied mixtures exhibit endothermic behavior. The results contribute to a deeper understanding of the behavior of alcohol/glycol ether mixtures and their potential application in fuel formulations.
PB Springer
SN 0195-928X
YR 2025
FD 2025-10
LK https://hdl.handle.net/10259/11603
UL https://hdl.handle.net/10259/11603
LA eng
NO Open access funding provided by FEDER European Funds and the Junta de Castilla y León under the Research and Innovation Strategy for Smart Specialization (RIS3) of Castilla y León 2021-2027. Open access funding provided by UNIVERSIDAD DE BURGOS
DS Repositorio Institucional de la Universidad de Burgos
RD 12-may-2026