Thermodynamic Analysis of Isothermal Redox Cycling of Ceria for Solar Fuel Production

摘要: A thermodynamic analysis of continuous fuel production by redox cycling ceria in a single solar reactor under isothermal conditions is presented. Ceria partially reduced sweep gas flow purified nitrogen and reoxidized with either steam or carbon dioxide to produce hydrogen monoxide, respectively. The oxidizer flows are preheated the product gases. influence selected process parameters, including operating temperature, pressure, effectiveness heat recovery, on solar-to-fuel conversion efficiency determined. For concentration ratio 3000, typical state-of-the-art dish concentrators, temperature 1773 K, 95.5% available gas-phase must be recovered reach efficiencies 10% 18% for monoxide production, respectively, assuming rate inert equivalent that counter-current arrangement ceria. depends stro...