TY - JOUR
T1 - A case study on bio-oil extraction from spent coffee grounds using fast pyrolysis in a fluidized bed reactor
AU - AlMallahi, Maryam Nooman
AU - Maen Asaad, Sara
AU - Rocha-Meneses, Lisandra
AU - Inayat, Abrar
AU - Said, Zafar
AU - El Haj Assad, Mamdouh
AU - Elgendi, Mahmoud
N1 - Publisher Copyright:
© 2023 The Authors
PY - 2023/12
Y1 - 2023/12
N2 - The increasing utilization of non-renewable energy resources contributes to the rise in greenhouse gas emissions, leading to a growing focus on renewable resources as viable alternatives for energy production. Biomass, being a sustainable and feasible source, offers a promising solution for clean energy generation. Due to its cost-effectiveness, pyrolysis is appealing as it produces bio-oil, bio-char, and syngas. This study investigated bio-oil production using spent coffee grounds as the feedstock in a fluidized bed reactor, varying the reaction temperature and residence times. Different pyrolysis temperatures' effect on the bio-char and bio-oil yields and energy content were analyzed. The results show that higher temperatures lead to higher bio-oil yields, lower bio-char yields, and shorter residence times. The highest bio-oil yield and energy content can be produced at 500 °C. The bio-oil obtained from the spent coffee grounds has a density of 0.991 g/cm3, a viscosity of 52 cP, and a higher heating value of 41 MJ/kg. Therefore, the spent coffee grounds are a suitable feedstock for bio-oil production for sustainability.
AB - The increasing utilization of non-renewable energy resources contributes to the rise in greenhouse gas emissions, leading to a growing focus on renewable resources as viable alternatives for energy production. Biomass, being a sustainable and feasible source, offers a promising solution for clean energy generation. Due to its cost-effectiveness, pyrolysis is appealing as it produces bio-oil, bio-char, and syngas. This study investigated bio-oil production using spent coffee grounds as the feedstock in a fluidized bed reactor, varying the reaction temperature and residence times. Different pyrolysis temperatures' effect on the bio-char and bio-oil yields and energy content were analyzed. The results show that higher temperatures lead to higher bio-oil yields, lower bio-char yields, and shorter residence times. The highest bio-oil yield and energy content can be produced at 500 °C. The bio-oil obtained from the spent coffee grounds has a density of 0.991 g/cm3, a viscosity of 52 cP, and a higher heating value of 41 MJ/kg. Therefore, the spent coffee grounds are a suitable feedstock for bio-oil production for sustainability.
KW - Bio-char
KW - Bio-oil
KW - Biomass
KW - Process simulation
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U2 - 10.1016/j.cscee.2023.100529
DO - 10.1016/j.cscee.2023.100529
M3 - Article
AN - SCOPUS:85174818406
SN - 2666-0164
VL - 8
JO - Case Studies in Chemical and Environmental Engineering
JF - Case Studies in Chemical and Environmental Engineering
M1 - 100529
ER -