Optimization of alkaline transesterification of soybean oil and castor oil for biodiesel production.
This article reports experimental data on the production of fatty acid ethyl esters from refined and degummed soybean oil and castor oil using NaOH as catalyst. The variables investigated were temperature (30-70 degrees C), reaction time (1-3 h), catalyst concentration (0.5-1.5 w/wt%), and oil-to-ethanol molar ratio (1:3-1:9). The effects of process variables on the reaction conversion as well as the optimum experimental conditions are presented. The results show that conversions >95% were achieved for all systems investigated. In general, an increase in reaction temperature, reaction time, and in oil-to-ethanol molar ratio led to an enhancement in reaction conversion, whereas an opposite trend was verified with respect to catalyst concentration.
de Oliveira
Débora
D
Department of Food Engineering, URI, Campus de Erechim, Av. Sete de Setembro, 1621-Erechim-RS, 99700-000, Brazil. odebora@uricer.edu.br
Di Luccio
Marco
M
Faccio
Carina
C
Dalla Rosa
Clarissa
C
Bender
João Paulo
JP
Lipke
Nádia
N
Amroginski
Cristiana
C
Dariva
Cláudio
C
de Oliveira
José Vladimir
JV
D000468:Alkalies / Q000737:chemistry; D002368:Castor Oil / Q000737:chemistry*; D002384:Catalysis; D020650:Combinatorial Chemistry Techniques; D004951:Esterification; D004952:Esters; D000431:Ethanol / Q000737:chemistry*; D005227:Fatty Acids / Q000138:chemical synthesis*; D005742:Gasoline; D006863:Hydrogen-Ion Concentration; D012972:Sodium Hydroxide / Q000737:chemistry*; D013024:Soybean Oil / Q000737:chemistry*; D013696:Temperature
D000468:Alkalies; D004952:Esters; D005227:Fatty Acids; D005742:Gasoline; D000431:Ethanol; D012972:Sodium Hydroxide; D013024:Soybean Oil; D002368:Castor Oil