Optimización de la producción de biodiesel con catalizadores de K/CaO
Palabras clave:
biodiesel, K/CaO, cáscara de huevo, Box-Behnken, transesterificaciónResumen
En este trabajo se optimizaron las condiciones de reacción de la transesterificación de aceite de canola usando el sistema K/CaO. Se sintetizaron tres series con distintas cantidades de K, 3, 6 y 9 %p/p, a tres temperaturas de calcinación, 500, 650, 800 °C. Se encontró que el rendimiento de biodiesel aumenta con la cantidad de K debido a la mayor cantidad de sitios activos. Igualmente, a 800 °C se alcanzó el mayor rendimiento, ya que las especies de KNO3 se han descompuesto en su totalidad. Así, el catalizador K6800 mostró un rendimiento de 85% indicando que sus sitios son accesibles condicionados por la dispersión del K. La optimización de superficie de respuesta Box-Behnken usó como factores a la temperatura a la relación molar metanol/aceite y el tiempo de reacción. El modelo fue confiable y con él se encontró el punto máximo de rendimiento (94 %) a 61.1 °C, una relación metanol/aceite=11.9 y un tiempo de 120 min.
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Derechos de autor 2025 Rodrigo Barrera Gutiérrez, David Marín Lugo, Gabriela Alejandra Vázquez Rodríguez, Gerardo Chávez Esquivel, Jesús Andrés Tavizón Pozos
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-SinDerivadas 4.0.
