Kinetic modeling of canola oil transesterification catalyzed by quicklime



Título del documento: Kinetic modeling of canola oil transesterification catalyzed by quicklime
Revista: Journal of applied research and technology
Base de datos: PERIÓDICA
Número de sistema: 000427618
ISSN: 1665-6423
Autores: 1
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2
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Instituciones: 1Universidad Autónoma del Estado de México, Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Toluca, Estado de México. México
2Universidad Autónoma del Estado de México, Facultad de Química, Toluca, Estado de México. México
Año:
Periodo: Dic
Volumen: 16
Número: 6
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés This work aimed to study and model the kinetics of transesterification of canola oil with methanol catalyzed by calcined quicklime (CaO + MgO). The influence of three main variables was studied at 328 K: reagents order addition (has a negligible effect on the reaction), methanol-oil molar ratio (has minor effect on reaction rate after 1.5 h of reaction) and catalyst loading (high effect on reaction rate) to achieve at least a triglycerides conversion of 96.5% in concordance with norm EN 14103. A kinetic model based on an Eley-Rideal mechanism was found to well fit (R2 = 0.9886) the experimental data. Thus, it was concluded that for the quicklime catalyzed transesterification of canola oil with methanol to occur, first the methanol must be chemisorbed and the resulting methoxy species react with triglycerides in the interface liquid-solid. The whole process is limited by this step since methanol readily adsorbs onto the catalytic surface
Disciplinas: Química
Palabras clave: Química de alimentos,
Aceite de canola,
Alcohólisis,
Metil ésteres,
Cal viva,
Biodiesel,
Modelación cinética
Keyword: Food chemistry,
Canola oil,
Alcoholysis,
Methyl Esters,
Alcoholysis,
Quicklime,
Biodiesel,
Kinetic modelling
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