Densities and Viscosities of Binary Mixtures of Babassu Biodiesel + Cotton Seed or Soybean Biodiesel at Different Temperatures

• Published in: Journal of chemical and engineering data Vol. 55; no. 11; pp. 5305 - 5310
• Main Authors: Nogueira, Carlos A, Feitosa, Filipe X, Fernandes, Fabiano A. N, Santiago, Rílvia S, de Sant’Ana, Hosiberto B
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 11.11.2010
• Subjects: Biofuel production; Biological and medical sciences; Biotechnology; Energy; Fundamental and applied biological sciences. Psychology; Industrial applications and implications. Economical aspects; Viscosity; Binary mixture; Monocotyledones; Angiospermae; Cotton seed; Spermatophyta; Biofuel; Palmae; Soybean; Density; Physical properties; Rheological properties
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/je1003862

Density ρ and viscosity η were measured for binary mixtures of cotton seed + babassu and soybean + babassu biodiesel over the composition range at several temperatures of (293.15, 313.15, 333.15, 353.15, and 373.15) K and atmospheric pressure. The viscosity deviation (Δη) was determined and fitted by a Redlich−Kister type function in terms of mass fraction (w). The Joback’s method combined with Lee−Kesler and Rackett equations were used to calculate the densities of the binary mixtures of cotton seed + babassu and soybean + babassu biodiesel. The experimental and estimated density values gave almost identical values with a relative differences of less than 0.21 %. The Ceriani’s group contribution method was used to predict the viscosity, with a maximum relative deviation of 31 %.