Coffee oil as a potential feedstock for biodiesel production

A preliminary evaluation of the feasibility of producing biodiesel using oil extracted from defective coffee beans was conducted as an alternative means of utilizing these beans instead of roasting for consumption of beverage with depreciated quality. Direct transesterifications of triglycerides fro...

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Bibliographic Details
Published in:Bioresource technology 2008-05, Vol.99 (8), p.3244-3250
Main Authors: Oliveira, Leandro S., Franca, Adriana S., Camargos, Rodrigo R.S., Ferraz, Vany P.
Format: Article
Language:English
Subjects:
Animal Feed
Biodiesel
Biofuel production
Biological and medical sciences
Biotechnology
Coffee - standards
Defective coffee beans
Energy
Esters - analysis
Ethanol
Fatty Acids - analysis
Fundamental and applied biological sciences. Psychology
Gasoline - statistics & numerical data
Glycine max
Industrial applications and implications. Economical aspects
Kinetics
Methanol
Plant Oils
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Summary:A preliminary evaluation of the feasibility of producing biodiesel using oil extracted from defective coffee beans was conducted as an alternative means of utilizing these beans instead of roasting for consumption of beverage with depreciated quality. Direct transesterifications of triglycerides from refined soybean oil (reference) and from oils extracted from healthy and defective coffee beans were performed. Type of alcohol employed and time were the reaction parameters studied. Sodium methoxide was used as alkaline catalyst. There was optimal phase separation after reactions using both soybean and healthy coffee beans oils when methanol was used. This was not observed when using the oil from defective beans which required further processing to obtain purified alkyl esters. Nevertheless, coffee oil was demonstrated to be a potential feedstock for biodiesel production, both from healthy and defective beans, since the corresponding oils were successfully converted to fatty acid methyl and ethyl esters.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2007.05.074