Biodiesel production as a solution to waste cooking oil (WCO) disposal. Will any type of WCO do for a transesterification process? A quality assessment

Journal of Environmental Management
Virginia Cordero-Ravelo, Julieta Schallenberg-Rodriguez

Abstract

Biodiesel production can be the solution to the problem of how to deal with waste cooking oils (WCO) and the associated problem of environmental contamination. Every year, tonnes of WCO are poured into toilets and drains, contaminating water supplies and creating serious problems in waste water treatment plants. WCO is a waste material that can be used to produce biodiesel. The main aim of this study is to determine how the type of WCO (and how much it has been used) affect the quality of the biodiesel obtained. Four types of WCO (sunflower, maize, olive and a blend of soybean, palm and sunflower) with two different levels of degradation were used to produce biodiesel. The WCO were subjected to a transesterification process, using NaOH and methanol as reagents, reaction temperatures of between 50 and 67.5 °C, a 60 min reaction time and magnetic stirring. The quality of the biodiesel that was obtained was measured on the basis of four parameters as set out in the UNE-EN 14214 standard: density at 15 °C, kinematic viscosity at 40 °C, acid number and iodine value. This characterisation forms part of the second aim of this research, namely to determine which types of WCO can produce a quality biodiesel via a single stage transester...Continue Reading

Citations

Aug 23, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Luke PlanteErick Martinez

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