Optimization for producing biodiesel from ethanol and waste frying oil with a high concentration of ester

Adriana Elaine da Costa; Carlos Alberto Klimeck-Gouvêa; Bruna Beatriz Lobo; Janaina Karine Andreazza; Kassim Shamil  Fadhil Al-Rubaie

doi:10.17533/udea.redin.n79a17

Autores/as

Adriana Elaine da Costa Centro Universitário SOCIESC - UNISOCIESC https://orcid.org/0000-0003-0874-0794
Carlos Alberto Klimeck-Gouvêa Centro Universitário SOCIESC - UNISOCIESC https://orcid.org/0000-0002-5563-5834
Bruna Beatriz Lobo Centro Universitário SOCIESC - UNISOCIESC
Janaina Karine Andreazza Centro Universitário SOCIESC - UNISOCIESC https://orcid.org/0000-0002-8895-4727
Kassim Shamil Fadhil Al-Rubaie Centro Universitário SOCIESC - UNISOCIESC https://orcid.org/0000-0002-9025-5247

DOI:

https://doi.org/10.17533/udea.redin.n79a17

Palabras clave:

reciclaje de aceite residual de alimentos fritos, metodología de superficie de respuesta, transesterificación

Resumen

Considerando que la transesterificación del aceite residual como resultado de la cocción de alimentos con la presencia de etanol no permite obtener biodiesel con concentración de etil éster superior a 96,5%, esta investigación muestra cómo se optimizaron las condiciones de la reacción con la adición de ácido oxálico. Con la ayuda de un diseño factorial fueron estudiados los efectos de la relación molar de etanol y aceite, así como la concentración del catalizador hidróxido de sodio en la presencia de ácido oxálico como activador del carbonilo en la fase aceite. El aceite usado se deshidrató y se filtró. La reacción fue realizada mediante la agitación mecánica durante un período de dos horas a 70° C. Los datos fueron modelados mediante la aplicación de la metodología de superficie de respuesta, encontrando las condiciones óptimas de la reacción. El camino propuesto demostró ser factible para la producción de biodiesel a partir de etanol y aceite residual con contenido de éster dentro de la concentración especificada por EN 14103 (superior a 96,5%). La metodología de superficie de respuesta mostró las condiciones ideales con la relación molar etanol:aceite de 6:1 y contenido de hidróxido de sodio de 1% respecto a la masa del aceite.

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Biografía del autor/a

Kassim Shamil Fadhil Al-Rubaie, Centro Universitário SOCIESC - UNISOCIESC

Profesor-Investigador de la Sociedad Educativa de Santa Catarina.

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