Journal of Food, Agriculture and Environment

Activity of heterogeneous catalysts in the methyl and ethyl transesterification of soybean oil


Kenia Gabriela dos Santos 1 *, Reinaldo Aparecido Bariccatti 1, Eduardo De Rossi 1, Leda Maria Saragiotto Colpini 2, Caroline Thaís Eckert 1, Geocris Rodrigues dos Santos 3, Helton José Alves 1,3

Recieved Date: 2015-01-22, Accepted Date: 2015-03-30


The aim of this study was to evaluate the synthesis of methyl and ethyl esters of soybean using two different types of heterogeneous catalysts: mesoporous molecular sieve [CTA+]Si-MCM-41 and KF-clay. Reaction conditions using methanol were temperature of 80°C with molar ratio of 1:12 to oil/alcohol, and 1:9 to [CTA+]Si-MCM-41 and KF-clay, respectively. Reaction times ranged from 1 to 2 hours. With the application of ethanol, the catalyst mass was maintained and some conditions were changed, such as temperature at 100°C, molar ratio of 1:15 and 1:12, and reaction time of 4 hours. Catalysts were characterized by means of (BET) N2 physisorption, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Conversions of ethyl esters were lower than those of methyl esters. With catalysts [CTA+]Si-MCM-41 and KF-clay, conversions of 6.4 and 63.3% by using ethanol as well as conversions of 91.0 and 95.2% with methanol were obtained.


Ethanol, methanol, potassium fluoride

Journal: Journal of Food, Agriculture and Environment
Year: 2015
Volume: 13
Issue: 2
Category: Environment
Pages: 250-255

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