A process model of syngas production using high temperature electrolysis and biomass gasification is presented. Process heat from the biomass gasifier is used to improve the hydrogen production efficiency of the steam electrolysis process. Hydrogen from electrolysis allows a high utilization of the biomass carbon for syngas production. Based on the gasifier temperature, 94% to 95% of the carbon in the biomass becomes carbon monoxide in the syngas (carbon dioxide and hydrogen). Assuming the thermal efficiency of the power cycle for electricity generation is 50%, (as expected from GEN IV nuclear reactors), the syngas production efficiency ranges from 70% to 73% as the gasifier temperature decreases from 1900 K to 1500 K.
The Production of Syngas via High Temperature Electrolysis and Biomass Gasification
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McKellar, MG, Hawkes, GL, & O’Brien, JE. "The Production of Syngas via High Temperature Electrolysis and Biomass Gasification." Proceedings of the ASME 2008 International Mechanical Engineering Congress and Exposition. Volume 8: Energy Systems: Analysis, Thermodynamics and Sustainability; Sustainable Products and Processes. Boston, Massachusetts, USA. October 31–November 6, 2008. pp. 229-235. ASME. https://doi.org/10.1115/IMECE2008-68900
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