VISCOUS-­FLOW MECHANISM OF #6 FUEL OIL – PALM OLEIN MIXTURES

The viscosities of mixtures of #6 fuel oil and palm olein at 60 °C do not obey Kendall-­‐‐Monroe equation. Molecular considerations predict deviation from ideal-­‐‐mixture behaviour for this kind of “binary” material. It is proposed tha...

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Main Authors: Lezcano-­González, Ritzela E., Mata Segreda, Julio Francisco
Format: Artículo
Language: Español
Published: 2015
Subjects:
Online Access: http://revistas.ucr.ac.cr/index.php/cienciaytecnologia/article/view/3772
http://hdl.handle.net/10669/14651
Summary: The viscosities of mixtures of #6 fuel oil and palm olein at 60 °C do not obey Kendall-­‐‐Monroe equation. Molecular considerations predict deviation from ideal-­‐‐mixture behaviour for this kind of “binary” material. It is proposed that the observed positive deviations are mainly due to looser molecular packing in the mixtures than in the “pure” components. Thus, mixing results in a lesser degree of hindrance for the viscous-­‐‐flow process. The empirical fit of fluidity as a function of olein mass fraction (x) is ln [Φmix/Φolein] = (2,72±0,05) + (5,6±0,3) x -­‐‐ (2,9±0,3) x2; r2 = 0,992, p < 0,01.