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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Biofuels. Sequential volarization of waste coffee grounds to Biodiesel, Bioethanol, and solid fuel

Biofuels. Sequential volarization of waste coffee grounds to Biodiesel, Bioethanol, and solid fuel

Haile, Mebrahtu

Paperback

General Science

ISBN10: 365666210X
ISBN13: 9783656662105
Publisher: Grin Verlag
Published: Jun 10 2014
Pages: 104
Weight: 0.32
Height: 0.25 Width: 5.83 Depth: 8.27
Language: English
Master's Thesis from the year 2014 in the subject Energy Sciences, course: Biofuels, language: English, abstract: In this study, the utilization of waste coffee residue for biodiesel production, its solid byproduct after oil extraction for bioethanol production, as well as the second byproduct after bioethanol production for solid fuel and compost production was investigated. For the study, waste coffee residue sample was collected from TOMOCA PLC, Addis Ababa, Ethiopia. The oil was then extracted using n-hexane and resulted in oil yield of 19.73 %w/w. The biodiesel was obtained by a two-step process, i.e. acid catalyzed esterification followed by base catalyzed transesterification using catalysts sulfuric acid and sodium hydroxide respectively. The conversion, after esterification of waste coffee residue oil in to biodiesel, was about 80.4%. Various parameters that are essential for biodiesel quality were evaluated using the American Standard for Testing Material (ASTM D 6751- 09). The results obtained for kinematic viscosity (5.3 mm /s), carbon residue (0.033%), flash point (222 C), ash content (0.0123%), water and sediment (

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