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1

Inter-University Research Center on Pollution and Environment -Mauro Felli- CIRIAF, University of Perugia, Via G. Duranti 63, Perugia 06125, Italy

2

Department of Engineering, University of Roma TRE, Via della Vasca Navale 79, Rome 00146, Italy





*

Author to whom correspondence should be addressed.



Academic Editor: Arthur J. Ragauskas

Abstract Biodiesel is obtained by the process of transesterification of vegetable oils and animal fats and crude glycerol is the main by-product of the biodiesel manufacturing chain. As a result glycerol production has rapidly increased in the last decades. This work focuses on the development and the validation of a process to convert biodiesel-derived glycerol into a fuel for internal combustion engines. In order to obtain a higher conversion efficiency it was necessary to convert crude glycerol to tert-butyl ethers by means of an etherification process that was carried out in the laboratory. Then the obtained glycol-ethers mixture GEM was blended with a commercial diesel fuel to improve its thermal efficiency. In this paper a life cycle analysis for these GEM-diesel blends was carried out using a Life Cycle Assessment LCA methodology, in order to evaluate the environmental impacts of these new oxy-fuels; from GEM production to GEM use as an additive for diesel fuel. The LCA results highlight that the use of these new oxy-fuels in diesel engines can lead to an effective reduction in terms of greenhouse gases emissions throughout the entire life cycle. View Full-Text

Keywords: biodiesel; glycerin; additive; Life Cycle Assessment biodiesel; glycerin; additive; Life Cycle Assessment





Author: Francesco Asdrubali 1,* , Franco Cotana 1, Federico Rossi 1, Andrea Presciutti 1, Antonella Rotili 1 and Claudia Guattari 2

Source: http://mdpi.com/



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