论文信息 - Thermodynamic analysis of SOFC fuelled by biomass-derived gas

Thermodynamic analysis of SOFC fuelled by biomass-derived gas

Abstract A thermodynamic evaluation of an integrated biomass catalytic gasifier-solid oxide fuel cell (SOFC) system has been made, as a preliminary approach to assess the technical feasibility of electrical energy production from a renewable source such as biomass. Equilibrium calculations have been made to predict conversion levels in a chemical reacting system including cellulose as a typical biomass feedstock and water vapor or CO2 as the gasifying agent. The allowable electrical efficiencies of the cellulose product-gas-fuelled SOFC have been calculated for different gasifier operating conditions, namely H2O (CO2)/biomass ratio and gasifier operating temperature. For a gasifier temperature of 700°C, electrical efficiencies in the SOFC are 47% and 51% for steam (steam/biomass = 1.12) and CO2(CO2/biomass = 1.30), respectively.

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