VANADIUM PENTOXIDE (V2O5) BASED CATALYST FOR ELIMINATING NOX CONTAINED IN FLUE GAS AND PREPARATION METHOD THEREOF

摘要

PURPOSE: A vanadium pentoxide (V2O5) based catalyst for eliminating NOx contained in flue gas and preparation method thereof are provided to effectively convert nitrogen oxides to nitrogen gas even in the presence of excess sulfur dioxide gas by adding barium oxide (BaO) or calcium oxide (CaO) in the manufacturing process of the vanadium pentoxide based catalyst being supported on a honeycomb structure monolith made of titanium dioxide. CONSTITUTION: This vanadium pentoxide based catalyst is prepared by drying slurry-phase of an intermediate mainly comprising meta-titanic acid (TiO(OH)2) obtained in the manufacturing process of titanium dioxide (TiO2) for use in pigment; calcining at a temperature range of 400 to 700deg.C for at least 5 hours for preparing a honeycomb structure monolith made of titanium dioxide; supporting 1.0-10wt.% of vanadium pentoxide, 1-8wt.% of barium oxide (BaO) or calcium oxide (CaO) (based on the total weight of raw materials) on the honeycomb structure monolith.