Anzeige
Erschienen in:
2018 | OriginalPaper | Buchkapitel
Regeneration of Waste Frying Oil for Biodiesel Production
verfasst von : Fetta Danane, Aida Cherifa Ahmia, Rhiad Alloune, Rahma Bessah
Erschienen in: Exergy for A Better Environment and Improved Sustainability 2
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
Energy consumption is inevitable for human existence. There are various reasons for the search of an alternative fuel that is technically feasible, environmentally acceptable, economically competitive, and readily available. Several alternatives such as wind, solar, hydro, nuclear, biofuel, and biodiesel have been suggested, but all of them are still in the research and development stage. The inventor of biodiesel engines, Rudolf Christian Karl Diesel (1858–1913), demonstrated the use of vegetable oils as a substitute for diesel fuel in the nineteenth century. He believed the utilization of biomass fuel will become a reality as future versions of his engine are designed and developed. Biodiesel is a monoalkyl ester of fatty acids produced from vegetable oils or animal fats (Appl Energy 104:683–710, 2013).
The increasing production of waste frying oils from household and industrial sources is a growing problem around the world. This residue is regularly poured down the drain, resulting in problems for wastewater treatment plants and energy loss, or is integrated into the food chain through animal feed, thus becoming a potential cause for human health problems (Renew Sust Energy Rev 10:248–268, 2006).
In order to recover these wastes and reduce production costs of biodiesel (up to 60–90%), the used cooking oil remains the key element, but its treatment is more complex than fresh vegetable oils. Most used frying oils contain a large amount of free fatty acids, so an esterification step is necessary before transesterification. This reaction is usually carried out in batch reactors with pressure and temperature conditions where the esterification reaction acts as the limiting step of the production.
The aim of this work is to eliminate the fatty acids before starting transesterification and testing the effectiveness of ethanol and methanol to ensure a better yield in the production of biodiesel from used frying oil.