Desulfurization apparatus and electric power plant using the same

摘要

The speed of coal gas desulfurization is improved and the total size of the apparatus can be made compact. The apparatus comprises a sulfide-ion-producing portion (54), which reacts with a sulfur compound being supplied by the coal gas and produces sulfide ion S2- in molten carbonate. A sulfur compound discharge portion (53) discharges a sulfur compound produced by a reaction with sulfur discharge gas (56).