Waste-to-hydrogen via CO2/steam-enhanced gasification of spent coffee ground

Juliana Petrocchi Rodrigues,Grace F. Ghesti,Edgar A. Silveira,Giulia Cruz Lamas,Ricardo Ferreira,M. Costa

Cleaner Chemical Engineering（2022）

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摘要

Spent coffee ground valorization by CO2/Steam-enhanced gasification.•Waste-to-hydrogen assessment considering energy and exergy aspects.•CO2/Steam gasification showed clear energetic and H2 exergy efficiency improvements.•0.18 CO2/biomass and 1.2 SBR as the optimum conditions for H2-rich gas production.•0.27 CO2/biomass and 0.8 SBR provided a higher syngas yield, LHVsyngas and CGE.

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关键词

Waste-to-energy,Waste-to-hydrogen,Spent coffee ground,Gasification,Low-cost feedstock

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