Development and validation of rare earth modified Fe-BEA SCR catalyst for mitigation of NOx from NH3 gas turbine
Cleaner Materials（2022）
Abstract
•Gd doped Fe-Beta catalyst showed enhanced NOx reduction >97% at 600 °C.•Gd doping enhanced the surface acidity of Fe-Beta catalyst beneficial for NH3 adsorption.•Addition of Gd to Fe-Beta improved the hydrothermal stability upon ageing at 800 °C in presence of steam.•System level demonstrated that Gd/Fe-BEA catalyst reduced 477 ppm of NOx in 300-kW ammonia gas turbine to less than 4.3 ppm.
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Key words
Gas turbine,Power generation,NH3-SCR,Fe-Beta zeolite,Rare earth metal ions,High temperature SCR,Hydrothermal stability
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