Paper Information

Journal:   IRANIAN JOURNAL OF CHEMICAL ENGINEERING   WINTER 2012 , Volume 9 , Number 1; Page(s) 50 To 59.
 
Paper: 

KINETIC MODELING OF SUNFLOWER OIL METHANOLYSIS CONSIDERING EFFECTS OF INTERFACIAL AREA OF REACTION SYSTEM

 
 
Author(s):  FARAJZADEH BIBALAN S., SADRAMELI S.M.*
 
* FACULTY OF CHEMICAL ENGINEERING, TARBIAT MODARRES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 
In this study, a kinetic model is proposed for Sunflower oil methanolysis in which the effect of the interfacial area on the reaction system has been investigated. The model is based on the combination of mass transfer and kinetics. Rate constant of the reaction is obtained by fitting of the experimental data with the model. Based on this model, activation energy is equal to E/R=3390 K. This model was applied to the transesterification of soybean oil with some modifications on Misek’s equation and interfacial tension correlation. Methyl ester production at two different mixing intensities was evaluated. By using this model, theoretical conversion is calculated and is compared with the experimental data taken from literature. An acceptable agreement has been obtained between two sets of data. Based on the experimental data shown in the paper, agitator speed has no significant effect on the conversion. Therefore, it can be concluded that at a temperature of 55oC or higher, the model parameter approaches to the rate constant of reaction and the agitation speed does not affect the kinetics.
 
Keyword(s): SUNFLOWER OIL, METHANOLYSIS, KINETIC MODEL, INTERFACIAL EFFECTS
 
References: 
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