Valorization of Sugarcane Bagasse for Hydrogen Rich Gas Production using Thermodynamic Modeling Approach
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Date
2022-12
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Abstract
Hydrothermal gasification also known as supercritical water gasification (SWG) has been considered a
promising approach for converting wet biomass such as sugarcane bagasse into high-quality syngas. This study
presents the thermodynamic modeling of the hydrothermal gasification of sugarcane bagasse using Aspen Plus. The
effects of process parameters on the composition and yield of product gases were also investigated. It was found that
the effect of temperature and biomass concentration were significant in the production of hydrogen-rich gas, while
less impact was observed with pressure. The hydrogen gas (H2) produced with the highest mole fraction (56.70 mol%)
and yield (103.26 kmol/kg) was obtained at 750°C and low biomass concentration of 10 wt%, while the lowest yield
(1.52 kmol/kg) and mole fraction (2.45 mol%) of H2 were obtained at 450°C and high biomass concentration of 50
wt%. Findings from this study also showed that the highest net calorific value (17.55MJ/kg) was reached at 450˚C and
50 wt% of biomass concentration. This study would help to consolidate research on hydrothermal gasification of
sugarcane bagasse and optimization of experimental processes and also serve as an important benchmark in the
utilization of biomass as a clean energy source for future projects.
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Keywords
Hydrothermal gasification, Thermodynamic modelling, Aspen Plus, Hydrogen gas, Sugarcane bagasse