Abstract
The catalytic reduction process of NOx by NH3 has been applied mainly to the clean combustion flue gases of LPG or LNG, which do not contain the harmful component which reduced the catalyst activity. This paper describes the experimental results of a survey for the catalytic reduction removal of NOx from dirty gas containing higher concentrations of HCl, SOx and dust emitted from a municipal refuse incinerator. The effects of reaction temperature, space velocity and the amount of NH3 injection on the NOx removal efficiency are studied experimentally, and the change of V2O5-TiO2 catalyst performance with time is examined ; and the regeneration techniques for catalysts are also discussed on the basis of the results of the heat treatment.
