【摘 要】
：
Lean mode operation of automobile engines saves fuel consumption, and consequently less CO2 -as main gas contributing to global warming-is emitted to atmosp
【机 构】
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Department of Chemical Engineering, Faculty of Science and Technology, University of the Basque Coun
【出 处】
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the 4th International Conference on Structured Catalysts and
论文部分内容阅读
Lean mode operation of automobile engines saves fuel consumption, and consequently less CO2 -as main gas contributing to global warming-is emitted to atmosphere.The engine operates in excess of oxygen, with an air-to-fuel ratio higher than stoichiometric, making the conventional three-way catalyst (TWC) ineffective under such net oxidizing environment [1].The reduction of NOx using NH3 is successfully practiced in stationary applications.Given the lack of success with the hydrocarbon lean NOx catalysts, engine manufacturers and catalyst companies are considering the use of SCR with NH3 as the reductant for the NOx in automobile exhaust gas control.
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