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METHOD FOR REDUCING AUTOMATIVE NO x? EMISSIONS IN LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST USING ZEOLITES.
METHOD FOR REDUCING AUTOMATIVE NO x? EMISSIONS IN LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST USING ZEOLITES.
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机译:减少自动化NO x的方法使用沸石排放稀薄燃烧内燃发动机的排放物。
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摘要
A method is provided for reducing NOx for high flow applications such as NOx abatement in an exhaust gas from an internal combustion engine operating under lean burn conditions wherein NOx is reduced by hydrocarbon reductants. The method employs a hydrothermally stable catalyst comprising transition metal-containing ZSM-5 which is prepared by in-situ crystallization of an aggregate comprising ZSM-5 seeds, silica, and a crystalline silicate.
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