| 汽车排气净化催化剂三效性能的研究 |
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| 引用本文： | 顾其顺,陈宏德.汽车排气净化催化剂三效性能的研究[J].环境化学,1993,12(2):81-86. |
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| 作者姓名： | 顾其顺 陈宏德 |
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| 作者单位： | 中国科学院生态环境研究中心，中国科学院生态环境研究中心，中国科学院生态环境研究中心，中国科学院生态环境研究中心 北京 100085，北京 100085，北京 100085，北京 100085 |
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| 摘 要： | 本文对Ky系列催化剂处理汽车排气中CO,HC和NO_x的三效性能进行了研究,用CVS法测定排放污染物的重量和转化效率;通过行车60 000km,证明高温老化引起催化剂表面结构的改变,是导致催化剂活性下降的主要原因,新改进的催化剂有较好的热稳定性和三效性能。
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| 关 键 词： | 汽车排气 净化 催化剂 稀土元素 |
STUDY OF THE 3-WAY CATALYSTS FOR AUTOMOTIVE EXHAUST TREATMENT |
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| Gu Oishun Chen Hongde Kuang Rongzhen Liu Wene.STUDY OF THE 3-WAY CATALYSTS FOR AUTOMOTIVE EXHAUST TREATMENT[J].Environmental Chemistry,1993,12(2):81-86. |
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| Authors: | Gu Oishun Chen Hongde Kuang Rongzhen Liu Wene |
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| Abstract: | The Ky series catalysts for automotive exhaust treatment, CO, HC & NOx (3-way) were studied. Using the CVS test method to determine the weight of the emitted pollutants(g/mile) and the conversion efficiency comparing the perfomance of Ky-A( I ) catalyst before and after 60 000 km field test. The change of catalysts surface structure caused by the high temperature aging was found to be the main reason for catalytic activity reduction.The new improved catalyst Ky-D possesses better thermal stability and 3-way activity. Further test will be carried out. |
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| Keywords: | automotive exhaust treatment 3-way catalyst rare earth |
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