| 摘要 |
<p>An apparatus for monitoring a NOx removal catalyst of denitrizer and a method of monitoring a NOx removal catalyst, wherein not only can the NOx removal catalyst actually deteriorated be grasped but also efficient replacement of the NOx removal catalyst can be effected in accordance therewith. In particular, an apparatus for monitoring multiple layers of NOx removal catalyst in an exhaust gas denitrizer, comprising NOx measuring means (16A - 16E) for measuring the NOx concentrations on the inlet side and outlet side of NOx removal catalysts (14A - 14D), NH3 measuring means (17A - 17E) for measuring the NH3 concentrations on the inlet side and outlet side of NOx removal catalysts and NOx removal efficiency measuring means (18) for measuring the NOx removal efficiency (η) in light of the molar ratio at inlet = NH3 at inlet / NOx at inlet.</p> |
