Complete Utilization of Spent Coffee Grounds To Produce Biodiesel, Bio-Oil, and Biochar
作者： Derek R. Vardon , Bryan R. Moser , Wei Zheng , Katie Witkin , Roque L. Evangelista
DOI: 10.1021/SC400145W
关键词: Moisture 、 Oxygenate 、 Pulp and paper industry 、 Biotechnology 、 Pyrolysis 、 Boiling point 、 Defatting 、 Chemistry 、 Raw material 、 Biochar 、 Biodiesel
摘要: This study presents the complete utilization of spent coffee grounds to produce biodiesel, bio-oil, and biochar. Lipids extracted from were converted biodiesel. The neat biodiesel blended (B5 B20) fuel properties evaluated against ASTM EN standards. Although displayed high viscosity, moisture, sulfur, poor oxidative stability, B5 B20 met blend specifications. Slow pyrolysis defatted was performed generate bio-oil biochar as valuable co-products. effect feedstock defatting assessed through analyses including elemental functional group composition, compound identification, molecular weight boiling point distributions. Feedstock reduced yields, energy density, aliphatic functionality, while increasing number low-boiling oxygenates. heteroatom content will likely require upgrading. Additionally, derived gro...
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