Excess enthalpies of ternary mixtures of oxygenated additives + hydrocarbon mixtures in fuels and bio-fuels: Dibutyl ether(DBE)and 1-butanol and 1-hexene or cyclohexane or 2, 2, 4 trimethylpentane at 298.15 K and 313.15 K

摘要

New experimental excess molar enthalpy data(420 points)of the ternary systems dibutyl ether(DBE)and 1-butanol and 1-hexene at 298.15 K and 313.15 K, and DBE and 1-butanol and cyclohexane or 2, 2, 4-trimethylpentane(TMP)at 313.15 K at atmospheric pressure are reported. A quasi-isothermal flow calorimeter has been used to make the measurements. All the ternary systems show endothermic character. The experimental data for the ternary systems have been fitted using the Redlich-Kister rational equation. Considerations with respect the intermolecular interactions amongst ether, alcohol and hydrocarbon compounds are presented.