Viscosity and liquid density of asymmetric hydrocarbon mixtures

abstract

Although a large body of viscosity data exists for simple mixtures of lighter n-alkanes, available information for heavy or asymmetric systems is scarce. Experimental measurements of viscosity and liquid densities were performed, at atmospheric pressure, in pure and mixed n-heptane, n-hexadecane, n-eicosane, n-docosane, and n-tetracosane from 293.15 K, or above the melting point, up to 343.15 K. The measured densities were correlated using the Peng-Robinson equation of state, and viscosities were modelled using the friction theory.

keywords

FRICTION THEORY; REFRACTIVE-INDEX; BINARY-MIXTURES; SYSTEMS; ALKANES; HEPTANE; OCTANE; HEXANE; DECANE; NONANE

subject category

Thermodynamics; Chemistry; Mechanics; Physics

authors

Queimada, AJ; Quinones-Cisneros, SE; Marrucho, IM; Coutinho, JAP; Stenby, EH

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