Flue gas denitrification. Selective catalytic oxidation of NO to NO/sub 2/
An investigation was carried out on the selective catalytic oxidation of NO in simulated flue gas. Oxidation of NO to the more reactive NO/sub 2/O/sub 3/ and N/sub 2/O/sub 4/ (NO/sub 2/) would enable wet scrubbing of NO/SUB/x simultaneously with SO/sub 2/ to be carried out. Fourteen catalysts were tested in a fixed-bed reactor at a space velocity of at least 1500 h/sup -1/ in the temperature range of 150 to 800 F. Eight catalysts exhibited optimum performance at 200 F, a temperature which is very suitable for an add-on process at a coal-fired power plant. Six catalysts yielded >50% oxidation at this temperature, but catalyst deactivation was observed after about 14 h of exposure to the flue gas.
- OSTI ID:
- 6086349
- Journal Information:
- Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 23:4; ISSN IEPDA
- Country of Publication:
- United States
- Language:
- English
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CATALYSIS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DENITRIFICATION
FLUE GAS
GASEOUS WASTES
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
SCRUBBING
TEMPERATURE EFFECTS
TESTING
WASTES