Classification of Technology:
Air Pollution Control Type of Industry:
Petroleum Refining Subject:
Reduction of NOx in Gas Turbine Exhaust Gas
1. Purpose
To reduce NOx of 300 ~ 400ppm to 110 ~ 150ppm in order to clear the agreed value with Yokkaichi City and Mie Prefecture.
2. Details of Improvement and the Time
The concentration of NOx at the outlet of the boiler installed together with the cogeneration equipment was reduced with the flue gas denigration equipment ( ammonium catalytic reduction method ). ( Oct., 1990 )
3. Principle ( Refer to the next page )
Catalyst
4NO + 4NH3 + O2 -> 4N2 + 6H2O
Catalyst
NO + NO2 + 2NH3 -> 2N2 + 3H2O
