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Densities and Viscosities for the Ternary Mixture of n‑Undecane (1) + Methyl Decanoate (2) + n‑Butanol (3) and Corresponding Binaries from T = 293.15 to 333.15 K and at Atmospheric Pressure

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journal contribution
posted on 15.09.2021, 17:40 by Pengfei Jiang, Yitong Dai, Tong Du, Yongsheng Guo, Wenjun Fang
It has been proved that the general performance of aviation fuels can be improved with the addition of biofuels. To understand the fundamental physical properties of the blends, n-undecane, methyl decanoate, and n-butanol were chosen as model compounds to construct a mixed system. Densities (ρ) and viscosities (η) of the ternary system n-undecane + methyl decanoate + n-butanol and its corresponding binary systems n-undecane + methyl decanoate, n-undecane + n-butanol, and methyl decanoate + n-butanol were measured at different temperatures T = (293.15–333.15 K) and atmospheric pressure p = 0.1 MPa. The excess molar volumes (VmE) and the viscosity deviations (Δη) of the binary systems and the ternary system were correlated to the Redlich–Kister equation and four semi-empirical equations, respectively. The VmE values of the ternary system and binary systems are all positive over the entire concentration range at each experimental temperature, while their Δη values are all negative. The experimental results can provide reliable data for the compatibility of biofuels and fossil fuels.

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