| 摘要 |
PURPOSE:To obtain the catalyst formed to a large sized structure to be used suitably in a denitration apparatus having a large capacity by filling gaps formed between inorganic fibers with a catalyst compsn. contg. TiO2, V oxide, Mo oxide, and W oxide, and forming thus a catalyst bed having a specified density. CONSTITUTION:A catalyst compsn. contg. TiO2, and at least one among V oxide, Mo oxide, and W oxide, which has been calcined previously at 500-650 deg.C, is pulverized so as to contain particles of which >=90% has 20mu or below particle size. Then, a slurry is prepd. by adding water to the obtd. powder, and the slurry is impregnated into a sheet made of inorganic fibers. After dying the sheet by inserting the sheet between porous die, a dried sheet is formed, and the catalyst for removing oxides of N2 is obtd. by calcining the formed product at 300-650 deg.C. The weight ratio of the catalyst compsn. to the inorganic fiber in the obtd. catalyst is >=3, and the apparent density of the catalyst is >=0.8g/cm<3>. |
