Isobaric Vapor–Liquid Equilibria for Binary Systems of Diethyl Carbonate + Propylene Carbonate, Diethyl Carbonate + Propylene Glycol, and Ethanol + Propylene Carbonate at 101.3 kPa

Abstract

Isobaric vapor–liquid equilibrium (VLE) data at 101.3 kPa were measured using a dynamic recirculating still for the binary systems of diethyl carbonate + propylene carbonate, diethyl carbonate + propylene glycol, and ethanol + propylene carbonate. The thermodynamic consistency of the VLE data has been checked with the Herington integral and point-to-point test methods. All of the equilibrium data were correlated with the nonrandom two liquid and the universal quasichemical models. Good agreement between the two models and experimental VLE data has been obtained. The optimal binary interaction parameters for the three systems, based on the maximum likelihood principle, are reported.

Isobaric Vapor–Liquid Equilibria of Binary Mixtures of Diethyl Carbonate with Methyl Acetate, n-Propyl Acetate, or Amyl Acetate at 100.17 kPa

“…Carbonate esters have a wide range of applications as solvents in various chemical and pharmaceutical industries, − such as diethyl carbonate (DEC), which is typically used as a gasoline additive or a co-additive with primary alcohols. Meanwhile, engine performance studies using esters as gasoline additives reported better performance and reduced smoke.…”