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Co-liquefaction of spent coffee grounds and lignocellulosic feedstocks
Bioresource Technology, 2017Co-liquefaction of spent coffee grounds (SCG) with paper filter (PF), corn stalk (CS) and white pine bark (WPB) respectively, was examined in subcritical water for bio-crude oil production. The optimum reaction temperature was 250°C, and the mixing biomass ratio was 1:1.
Linxi, Yang +5 more
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Spent Coffee Grounds as a Versatile Source of Green Energy
Journal of Agricultural and Food Chemistry, 2008The production of energy from renewable and waste materials is an attractive alternative to the conventional agricultural feed stocks such as corn and soybean. This paper describes an approach to extract oil from spent coffee grounds and to further transesterify the processed oil to convert it into biodiesel. This process yields 10-15% oil depending on
Narasimharao, Kondamudi +2 more
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Anaerobic digestion of spent coffee grounds
Biomass, 1983Anaerobic digestion of spent coffee grounds (3 kg m−3 day−1) with efficient solids recycling achieved 99% conversion of solids and gas yields of 0·54 m3 kg−1 (56–63% methane). Gas production declined steadily over the test period and after 80 days had fallen from an initial value of 1·70 litre litre−1 day−1 to 0·45 or 0·33 litre litre−1 day−1, with or ...
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Spent Coffee Grounds for Energy Generation
2022Em face da necessidade do desenvolvimento de novas tecnologias para geração de energia, têm surgido propostas que visam a adoção de biomassas alternativas para tal finalidade. No presente trabalho, é proposta a utilização da borra de café, um rejeito urbano doméstico geralmente descartado, para produção de biocombustíveis e geração de energia. Uma rota
Klusener, Arthur da Silva +6 more
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Valorization of spent coffee grounds – A new approach
Separation and Purification Technology, 2018Abstract It is established that from well selected spent coffee grounds by water extraction and subsequent extract nanofiltration one can obtain valuable products as permeate and retentate fractions. The obtained permeate is of high caffeine concentration and is potentially applicable in soft and energy drinks production.
D. Peshev, D. Mitev, L. Peeva, G. Peev
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Green nanocomposites filled with spent coffee grounds
Journal of Applied Polymer Science, 2015ABSTRACTThis study evaluated physical properties of the nanocomposites reinforced by used coffee grounds. Coffee grounds were ball‐milled and filtered in an effort to secure nanoparticles for the fabrication of polyvinyl alcohol (PVA)/coffee nanocomposites.
Hyun Kyung Lee +3 more
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Fractionation of spent coffee ground with tertiary amine extraction
Separation and Purification Technology, 2021Padmanaban Krishnan +2 more
exaly