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Production and Investigation of Biodiesel Fuels from Spent Coffee Grounds
Pages 66-70

Zinaida Dimitrijević and Iris Salihbegovic


Published: 29 September 2017


Abstract: The oil fractions, extracted under different conditions fromspent coffee grounds, were used to produce biodieselfuels and investigate their FAME profiles.For producing of fuels, esterification and transesterification of oilswith homogeneous catalysts were applied. Investigation of the esters composition (FAME) in biodiesel is carried out by modifiedgas chromatographic method EN 14103. The content of each individual ester was calculated using the method of internal standard. The results of total and individual FAME content in all studied objects are shown. The results show the feedstocks and extractionconditions (catalysts, temperatures) for obtaining the biodiesel with high yield and balanced composition.

Keywords: Coffee oil, spent coffee grounds, microwave irradiation, biodiesel feedstock, fatty acid methyl esters, gas chromatography.

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