| abstract |
A method for producing an adsorbent having the capability of decomposing an organic halogen compound, characterized in that it comprises reacting a salt of Pt and/or Pd, an organic titanium compound and an organic binder in a solvent, to thereby synthesize a dispersion of an organic metal compound precursor containing Pt and/or Pd and Ti in a molecule thereof, adding a TiO2 sol to the dispersion to prepare a catalyst coating solution, impregnating an active carbon with the catalyst coating solution and heating the resultant mixture, thereby allowing the active carbon to carry thereon an organic halogen compound decomposition catalyst comprising TiO2 and, dispersed therein, fine particles of Pt and/or Pd. An adsorbent produced by the method can be used for adsorbing an organic halogen compound contained in an exhaust gas and also decomposing it with reliability without re-synthesis of the compound and further for adsorbing and removing Sox, Nox, HCl, a heavy metal and the like, in a low temperature range of 130 to 150 ° allowing the use of an active carbon. |