| 摘要 |
PROBLEM TO BE SOLVED: To increase a conversion ratio into N2 and to decrease a conversion ratio into SO3 by making a carrier support a catalyst component, a metal the first ionization potential of which is greater than that of vanadium, and the second catalyst component of the metal. SOLUTION: In order to decrease the adsorption of sulfur dioxide (SO) by two-coordinate lattice oxygen (O3) or in order to decrease the charge of the two-coordinate lattice oxygen (O3), on a carrier comprising titanium oxide, a catalyst component containing 1-3% in weight ratio of vanadium pentaoxide (V2 O5) as a main component and the second catalyst component comprising 1-3% in weight ratio of a metal such as Cr, Zr, Nb, Ac, Hf, Mo, Te, Bi, Sn, Ru, Pb, Mn,..., Ta, W, Pd, and Zn the first ionization potential of which is greater than that of vanadium (V) or its oxide are made to be supported. |
