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Optimization of Multicomponent Cobalt Spinel Catalyst for N₂O Abatement from Nitric Acid Plant Tail Gases: Laboratory and Pilot Plant Studies
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Optimization of Multicomponent Cobalt Spinel Catalyst for N₂O Abatement from Nitric Acid Plant Tail Gases: Laboratory and Pilot Plant Studies
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Optimization of Multicomponent Cobalt Spinel Catalyst for N₂O Abatement from Nitric Acid Plant Tail Gases: Laboratory and Pilot Plant Studies
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Journal Article
Optimization of Multicomponent Cobalt Spinel Catalyst for N₂O Abatement from Nitric Acid Plant Tail Gases: Laboratory and Pilot Plant Studies
2009
Overview
The influence of Zn and K promoters on N₂O decomposition over Co₃O₄ was investigated by work function measurement and temperature-programmed surface reaction. The beneficial effect of the promoters resulting in spectacular decrease in the temperature of 50% conversion by 200 °C was found to be essentially of electronic origin. The strong correlation between the catalyst work function and deN₂O activity allowed for the optimization of the doping level of both additives. The pilot plant tests in real nitric acid tail gases revealed that the optimized double promoted (Zn, K) cobalt spinel catalyst maintained its remarkable activity in N₂O decomposition (conversion >95% at the target temperature of 350 °C) for more than 60 h.
Publisher
Boston : Springer US,Springer US,Springer Nature B.V
