62.鉄・カルシウム共存下の石炭熱分解時における脱硫脱窒素

抄録

The iron and calcium co-loaded on brown coal respectively promote efficient conversion of the nitrogen to N_2 and capture the sulfur evolved during the fluidized bed pyrolysis at 900℃. When the co-loaded brown coal and a high sulfur bituminous coal is co-pyrolyzed, the iron shows no catalytic effect on the formation of N_2 from the bituminous coal, but the calcium captures almost all of H_2S evolved from the coal. The X-ray diffraction analysis of the brown coal char, separated magnetically from the mixed chars, reveals that the iron is present in the reduced forms and the calcium is converted to CaS.