Solar thermochemical processes, such as solar gasification of coal, require the development of a high temperature solar reactor operating at temperatures above . Direct solar energy absorption by reacting coal particles provides efficient heat transfer directly to the reaction site. In this work, a windowed reactor prototype designed for the beam-down optics was constructed at a laboratory scale and demonstrated for gasification of coal coke using concentrated visible light from a sun-simulator as the source of energy. Peak conversion of light energy to chemical fuel (CO) of 14% was obtained by irradiating a fluidized bed of coal coke size fraction with a power input of about 1 kW and a flow-rate of at normal conditions.
Coal Coke Gasification in a Windowed Solar Chemical Reactor for Beam-Down Optics
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Kodama, T., Gokon, N., Enomoto, S., Itoh, S., and Hatamachi, T. (September 1, 2010). "Coal Coke Gasification in a Windowed Solar Chemical Reactor for Beam-Down Optics." ASME. J. Sol. Energy Eng. November 2010; 132(4): 041004. https://doi.org/10.1115/1.4002081
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