Hidroesterificación de Aceite Usado de Cocina con Agua Subcrítica y Etanol Supercrítico para la Producción de Biodiésel

Authors

DOI:

https://doi.org/10.53591/easi.v2i2.2536

Keywords:

Hydroesterification, Hydrolysis, Esterification, Supercritical ethanol, Biodiesel

Abstract

The objective of this study was to determine the best combination of experimental factors of temperature and reaction time for the two-step
hydroesterification reaction (hydrolysis and esterification) of used cooking oil with subcritical water and supercritical ethanol, which allows maximizing the obtaining of ethyl fatty acid esters (biodiesel). The used oil (raw material of the process) was characterized by physicochemical tests applicable to oils and fats of animal and vegetable origin. The hydrolysis reaction was carried out with a 3x3 factorial experimental design in temperature and time (250, 275 and 300 °C for 20, 40 and 60 minutes), with a constant 1:1 water-oil volumetric ratio. The free fatty acids were separated from glycerin, they were esterified with supercritical ethanol based on a 3x3 factorial experimental design in temperature and time (250, 300 and 350 ° C for 10, 20 and 30 minutes) keeping the pressure of the medium constant. reaction at 10 MPa and the molar ratio of ethanol - free fatty acids 10:1. The percentage conversion of free fatty acids from the hydrolysis reaction and the percentage conversion from the esterification reaction were determined by potentiometric titration. 

Author Biographies

Walter Quiroga Pérez , Facultad de Ingeniería Química y Agroindustria, Quito, Ecuador, 170525

Ingeniero Químico por la Escuela Politécnica Nacional (2019). Máster en
gestión ambiental y energética por la Universidad Internacional de la
Rioja y maestrante de economía circular en la Pontificia Universidad
Católica del Ecuador. Se desempeña actualmente como coordinador
técnico en PECS Ambiente y Sostenibilidad, especialista en la gestión de
desechos peligrosos y economía circular.

Liliana Guzmán Beckmann, Facultad de Ingeniería Química y Agroindustria, Quito, Ecuador, 170525

Ingeniera Química de la Escuela Politécnica Nacional (EPN) en el 2003.
Máster en Diseño de Procesos, Universidad Central del Ecuador.
Ingeniera de campo de registros eléctricos en pozos en perforación y en
producción de petróleo, Baker Hughes. Gerente de Logística y Procesos
para trazar el combustible ecuatoriano para prevenir y controlar el
contrabando y desvío de derivados del petróleo, Decipher C.A.
Actualmente, profesora del Departamento de Ingeniería Química de la
EPN, investiga temas relacionados con petróleo, derivados del petróleo
y biocombustibles.

Andrés Chico Proaño, Facultad de Ingeniería Química y Agroindustria, Quito, Ecuador, 170525

Ingeniero Químico por la Escuela Politécnica Nacional. Máster en
ciencias en Ingeniería de Procesos y Sistemas Ambientales por
University of Surrey, GB y Doctor en Ingeniería Química por University
College of London, GB. Sus áreas de investigación es el modelado de
procesos termoquímicos de biomasa, las aplicaciones de conversión de
residuos en energía y el diseño y optimización de procesos químicos.
Actualmente, se desempeña como docente del Departamento de
Ingeniería Química de la EPN.

Emerson Reyes-Narváez, Facultad de Ingeniería Química y Agroindustria, Quito, Ecuador, 170525

Ingeniero Químico de la Escuela Politécnica Nacional en 2020. Magister
en Diseño Industrial y de Procesos en la Universidad Internacional SEK
(UISEK) en 2022. Sus áreas de conocimiento: sistemas de gestión de la
calidad, la mejora continua de procesos y el diseño de proyectos de
ingeniería para inversión. Actualmente, se desempeña como analista de
laboratorio de ensayos en el Laboratorio de Combustibles,
Biocombustibles y Aceites Lubricantes (LACBAL), vinculado a los
proyectos de investigación y de transferencia de tecnología.

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Published

2023-12-26

How to Cite

Quiroga Pérez , W., Guzmán Beckmann, L., Chico Proaño, A., & Reyes-Narváez, E. (2023). Hidroesterificación de Aceite Usado de Cocina con Agua Subcrítica y Etanol Supercrítico para la Producción de Biodiésel . EASI: Engineering and Applied Sciences in Industry, 2(2), 29–40. https://doi.org/10.53591/easi.v2i2.2536

Issue

Vol. 2 No. 2 (2023): Energy efficiency and Sustainability (Special Issue, December)

Section

Research articles

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Copyright (c) 2023 Walter Quiroga Pérez , Liliana Guzmán Beckmann, Andrés Chico Proaño, Emerson Reyes-Narváez

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