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稀薄燃烧汽油机NO_x排放后处理研究进展

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摘要 降低稀燃汽油机NOx排放是实现稀薄燃烧的最大难题。文中详细阐述了降低稀燃汽油机NOx排放的吸附催化转化和选择还原催化转化技术与研究进展。认为应该充分应用稀燃发动机的排气产物作为还原物质,如HC和CO等,采用沸石和贵金属分子筛催化器对NOx进行选择还原。提出研制具备高的NOx转化效率,同时具有好的水热耐久性和高的抗硫中毒能力的选择还原催化器是我们科技工作者追求的目标。
出处 《北京汽车》 2007年第5期34-37,共4页 Beijing Automotive Engineering
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