Solar Thermochemical Splitting of CO2 in a Modular Solar Dish-Reactor System
Abstract
We report on the experimental demonstration of a modular solar dish-reactor system to perform the splitting of CO2 into separate streams of CO and O2 via a 2-step thermochemical cycle based on ceria redox reaction. Since only the reduction step requires a solar input, the system comprises two solar reactors mounted side-by-side on a sun-tracking dish concentrator coupled to a secondary rotating reflector that allows for simultaneous operation of both reactors by alternating the concentrated solar input between them. Each solar reactor consists of a cavity-receiver containing a reticulated porous structure made of ceria exposed to a solar radiative power input of 6 kW at 2360 suns entering through the cavity's aperture. Process stability and system robustness are demonstrated by performing fully automated consecutive redox cycles. Mehr anzeigen
Publikationsstatus
publishedExterne Links
Buchtitel
ISES Solar World Congress (ISES SWC 2019) and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2019)Seiten / Artikelnummer
Verlag
CurranKonferenz
Thema
Solar; Fuel; Concentrator; Reactor; Thermochemical; Redox; Cycle; Ceria; CO2Organisationseinheit
03530 - Steinfeld, Aldo / Steinfeld, Aldo
Förderung
162435 - Design of perovskite and doped-ceria redox materials for high performance solar thermochemical splitting of H2O and CO2 (SNF)
320541 - Solar thermochemical production of fuels (EC)