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La2Cu1-xFexO4催化去除柴油機NOx和PM排放臺架試驗
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國家自然科學(xué)基金資助項目（50776062）;國家高技術(shù)研究發(fā)展計劃（863計劃）資助項目（2008AA06Z322）


Simultaneous Removal of Diesel NOx and Soot over La2Cu1-xFexO4 Perovskite-type Catalysts
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    摘要:

    為采取后處理技術(shù)同時去除柴油機的NOx和PM排放,，采用溶膠凝膠法制備了La2Cu1-xFexO4系列催化劑，運用XRD,、NO—TPD及H2—TPR對樣品進行表征,，并對催化劑進行模擬活性評價，結(jié)果表明La2Cu07Fe03O4具有同時去除PM—NO的反應(yīng)活性,。將La2Cu07Fe03O4制備成催化器進行發(fā)動機穩(wěn)態(tài)工況的臺架試驗,，并采取后噴的燃油噴射方式，表明制備的催化劑在發(fā)動機高速高負(fù)荷工況時能去除NOx和氧化再生PM,，當(dāng)主噴與后噴間隔角為70°CA時后噴燃油能生成大量具有還原性的HC,，提高了對NOx的轉(zhuǎn)化率。

    Abstract:

    A series of La2Cu1-xFexO4 catalysts were prepared by sol-gel, the samples were characterized by XRD,、NO—TPD and H2—TPR, temperature-programmed test was used to evaluate the activity of the catalyst. It is found that La2Cu07Fe03O4 has a good PM—NO removal activities. So CDPF was prepared by La2Cu07Fe03O4 for the steady-state condition of the engine bench research, and by adjusting ECU to control fuel injection. When the crank angle between main injection and post injection was 70°CA, there was so much HC emission to significantly increase the conversion rate of NOx.

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陳朝輝,李志軍,高立波,焦鵬昊,張文斐,劉磊. La2Cu1-xFexO4催化去除柴油機NOx和PM排放臺架試驗[J].農(nóng)業(yè)機械學(xué)報,2012,43(9):11-15. Chen Zhaohui, Li Zhijun, Gao Libo, Jiao Penghao, Zhang Wenfei, Liu Lei. Simultaneous Removal of Diesel NOx and Soot over La2Cu1-xFexO4 Perovskite-type Catalysts[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(9):11-15.

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  • 在線發(fā)布日期: 2012-09-04
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