Research Progress of Selective Catalytic Reduction of NOx with Methane over Metal/Molecular Sieve Catalysts
CH4 selective catalytic reduction of NOx(CH4-SCR)is a potential technique to remove NOx.In this paper,the research progress of different metal/zeolite catalysts and reaction mechanisms in CH4-SCR in the past ten years was reviewed.The influence factors of CH4-SCR over metal/zeolite catalysts were discussed,including new understandings of catalytic active sites,key active intermediates,reaction kinetics,molecular sieve type,supported metal type and reaction conditions.The application and further research direction on metal/zeolite catalysts of CH4-SCR were proposed.
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