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Correlation and prediction of the viscosity of pure hydrocarbons
Author(s) -
Mehrotra Anil K.
Publication year - 1994
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450720324
Subject(s) - viscosity , thermodynamics , absolute deviation , carbon number , mathematics , correlation , linear correlation , chemistry , statistics , materials science , physics , organic chemistry , geometry , alkyl
A relationship is identified between the effective carbon number (ECN) and parameter b in the one‐parameter viscosity euation: log (μ + 0.8) = 100 (0.0lT) b . The generalized correlation, b = ‐5.745 + 0.616 In (ECN) ‐ 40.468 (ECN) −15 , provides an equation to predict parameter b , which gives values that are within the maximum deviation of 5% for ECN < 10 and 1% for 10 < ECN < 44 of the empirically‐determined values for 70 liquid hydrocarbons. The calculated viscosities are within 5% of literature data. The viscosity prediction method is simple to use, and it can be extrapolated reliably to heavier hydrocarbons.