Wednesday, February 27, 2019

Liquid - Liquid Equilibria of Methanol + Toluene + Hexane Ternary System at 278.15, 283.15, 288.15 and 293.15K-RECENT ADVANCES IN PETROCHEMICAL SCIENCE-JUNIPER PUBLISHERS

JUNIPER PUBLISHERS-Recent Advances in Petrochemical Science


Liquid - Liquid Equilibria of Methanol + Toluene + Hexane Ternary System at 278.15, 283.15, 288.15 and 293.15K



Authored by Monica B Gramajo,

Liquid-liquid equilibria of methanol + ethylbenzene + methylcyclohexane ternary system at 278.15, 283.15, and 293.15K are reported. The effect of the temperature on liquid-liquid equilibrium is discussed. All chemicals were quantified by gas chromatography using a thermal conductivity detector. Experimental data for the ternary system are compared with values calculated by the NRTL and UNIQUAC equations. It is found that the UNIQUAC equation fitted to the experimental data is more accurate than the NRTL model for this ternary system. There are increasing demands for use oxygenated compounds to produce reformulated gasoline. For this reason, we are studying the phase equilibrium of systems containing hydrocarbons and oxygenated compounds. Within the oxygenated compounds, ethers and alcohols are the most important, and among these, methanol is receiving much current attention [1-6]. Methanol presents partial miscibility with aliphatic hydrocarbons, but not with aromatic hydrocarbons. Therefore, it is of great importance to study systems composed by methanol and representative hydrocarbon of gasoline, establishing the concentration ranges and the temperature of hydrocarbons and methanol in which the two-phase region does not exist.


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