Production of biodiesel from animal fat using supercritical ethanol

Bolonio Martín, David and Neu, Philipp Marco and Schober, Sigurd and Mittelbach, Martin and Canoira López, Laureano (2015). Production of biodiesel from animal fat using supercritical ethanol. "Journal of fundamentals of renewable energy and applications", v. 5 (n. 5); p. 131. ISSN 2090-4541. https://doi.org/10.4172/2090-4541.S1.003.

Description

Title: Production of biodiesel from animal fat using supercritical ethanol
Author/s:
  • Bolonio Martín, David
  • Neu, Philipp Marco
  • Schober, Sigurd
  • Mittelbach, Martin
  • Canoira López, Laureano
Item Type: Article
Event Title: Proceedings of the International Congress and Expo on Biofuels & Bioenergy
Event Location: null
Title of Book: International Congress and Expo on Biofuels & Bioenergy
Título de Revista/Publicación: Journal of fundamentals of renewable energy and applications
Date: 2015
ISSN: 2090-4541
Volume: 5
Subjects:
Faculty: E.T.S.I. de Minas y Energía (UPM)
Department: Energía y Combustibles
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Biodiesel is currently produced from a catalytic transesterification reaction of various types of edible and non-edible oil with methanol. The use of waste animal tallow instead of edible oils opens a route to recycle this waste. This material has the advantage of lower costs but the problem of high content of free fatty acids, becoming necessary a pre-esterification reaction that increases the cost of the catalytic process. The production of biodiesel using supercritical alcohols is appropriate for materials with high acidity and water content, therefore the use of this process with animal fat is a promising alternative. Ethanol has been used because it can be produced from biomass via fermentation resulting in a complete renewable biodiesel, instead of methanol that derives from fossil feedstocks. Two different processes have been studied: first, the direct transesterification of animal fat using supercritical ethanol and second a two-step process where the first step is a hydrolysis of the animal fat and the second step is the esterification of the resulting fatty acids. The temperature, the molar ratio ethanol:fat and the time have been modified in the different reactions to study the effect in the final conversion and the degradation of the unsaturated fatty acid esters, main inconvenient of these high temperature and pressure processes.

More information

Item ID: 41892
DC Identifier: http://oa.upm.es/41892/
OAI Identifier: oai:oa.upm.es:41892
DOI: 10.4172/2090-4541.S1.003
Official URL: https://www.omicsonline.org/proceedings/production-of-biodiesel-from-animal-fat-using-supercritical-ethanol-31827.html
Deposited by: Memoria Investigacion
Deposited on: 24 Jun 2016 09:43
Last Modified: 07 Jun 2019 16:47
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