The reduction of nitric oxide with ammonia on the activated surface of steel plates. 1. Kinetics and mechanism.

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  • NAGAI Ken-ichi
    Technical Research Institute, Hitachi Shipbuilding & Engineerring, Ltd.
  • KAMINO Yasumi
    Technical Research Institute, Hitachi Shipbuilding & Engineerring, Ltd.
  • ICHIKI Masayoshi
    Clean Air System Development Department, Hitachi Shipbuilding & Engineering, Ltd.
  • INABA Hideya
    Clean Air System Development Department, Hitachi Shipbuilding & Engineering, Ltd.

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Other Title
  • 鋼板の活性化表面上でのアンモニアによる一酸化窒素の還元反応 (第1報)
  • Kinetics and Mechanism

Abstract

The surface of a steel plate was activated for catalytic reduction of NO with NH3. The catalyst showed stable and high activity in the presence of SO2, H2O and O2. The rate of reduction of NO with NH3 on the plate-form catalyst used was expressed by the following formula, <br>r•dv=kKNOPNO√KO<sub>2</sub>PO<sub>2</sub>in/1+KH<sub>2O</sub>PH<sub>2O</sub>in+√KO<sub>2</sub>PO<sub>2</sub>in•KNH<sub>3</sub>PNH<sub>3</sub>/1+KNH<sub>3</sub>PNH<sub>3</sub>•dA, <br>which was deduced from the assumption that NO adsorbed as NO2 (a) on O (a), and that NO2 (a) reacted with NH3 (a) adsorbed on the sites different from those for the former.

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