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Thermodynamics of wax precipitation under the influence of magnetic fields
Author(s) -
CañasMarin W. A.,
OrtizArango J. D.,
GuerreroAconcha U. E.,
LiraGaleana C.
Publication year - 2006
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.10876
Subject(s) - wax , crystallization , magnetic field , thermodynamics , paraffin wax , precipitation , hydrocarbon , chemistry , physics , organic chemistry , meteorology , quantum mechanics
A thermodynamic framework is developed for calculating wax precipitation in multicomponent (nonferromagnetic) hydrocarbon mixtures under the influence of a static magnetic field. A mathematical expression was derived for calculating the compositional derivatives of the magnetic susceptibilities using an equation of state. These susceptibilities are required for calculating magneto‐chemical fugacities. The model was used to predict the effect of a static magnetic field on crystallization temperature and amount of precipitated wax for three normal‐paraffin mixtures and one synthetic gas‐condensate. Calculated results indicate that static magnetic fields increase the probability of formation of paraffin crystals, in accordance to the experimental evidence. © 2006 American Institute of Chemical Engineers AIChE J, 2006