COAL LIQUEFACTION AND NUCLEAR POWER SYSTEM/COAL LIQUEFACTION PLANT COMBINATION

摘要

PROBLEM TO BE SOLVED: To provide a highly safe and highly efficient coal liquefaction process utilizing a short-half-life artificial radioactive element (RI) generated by the irradiation with nuclear reactor thermal neutrons and a nuclear power system/a coal liquefaction plant combination capable of effective load leveling. SOLUTION: The coal liquefaction process comprises a coal slurry preparation step of mixing RI generated by the irradiation with thermal neutrons and a fine coal powder 9, a solvent 10, and a catalyst 11; a decomposition/liquefaction step of heating the coal slurry; and a step of separating a liquid from the slurry containing the decomposition product. The nuclear power system/coal liquefaction plant combination comprises a nuclear power plant 1 having a thermal neutron irradiation apparatus 5 arranged inside or outside the pressure container of a nuclear reactor 2 for generating steam for power generation and generating an artificial RI from an RI generating material 6; a coal slurry preparation tank 12 for mixing the generated artificial RI with components 9, 10, and 11; a liquefaction reactor 17 for heating 16, decomposing, and liquefying the prepared coal slurry; and an apparatus for separating the decomposition product.