COAL GASIFICATION BY CO_2 GAS BUBBLING IN MOLTEN SALT FOR SOLAR/FOSSIL ENERGY HYBRIDIZATION

摘要

Coal gasification with CO_2 (the Boudouard reaction: C+CO_2=2CO, Δ_H=169.2 kJ/mol at 1150 K), which can be applied to a solar thermochemical process to convert concentrated solar heat into chemical energy, was conducted in the molten slat medium (eutectic mixture of Na_2CO_3 and K_2CO_3, weight ratio=1/1) to provide thermal storage.