Flame combustion synthetic method for primary preparation of NSR catalysts
The invention discloses a flame combustion synthetic method for primary preparation of NSR catalysts, comprising the steps: adopting metal organic compounds as a precursors; dissolving the metal organic compounds in an organic solvent; dissolving the organic compounds of platinum family metal and al...
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Format | Patent |
Language | Chinese English |
Published |
27.01.2010
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Abstract | The invention discloses a flame combustion synthetic method for primary preparation of NSR catalysts, comprising the steps: adopting metal organic compounds as a precursors; dissolving the metal organic compounds in an organic solvent; dissolving the organic compounds of platinum family metal and alkaline earth metal in the same solvent by a double-nozzle method; introducing the organic compounds into the same nozzle; dissolving the organic compound of metal aluminum in the solvent; introducing the other nozzle and simultaneously combusting. The high dispersibility of atomized liquid at a gas phase state and high-temperature and high-speed performance in gas phase combustion are skillfully applied, and a high-performance NSR catalytic material is obtained by selecting different precursors. The corresponding speed of a catalyst on NOx is effectively enhanced and the conversion quantity is raised. The prepared NSR catalyst has large specific surface area, high catalytic activity, high thermal stability and stro |
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AbstractList | The invention discloses a flame combustion synthetic method for primary preparation of NSR catalysts, comprising the steps: adopting metal organic compounds as a precursors; dissolving the metal organic compounds in an organic solvent; dissolving the organic compounds of platinum family metal and alkaline earth metal in the same solvent by a double-nozzle method; introducing the organic compounds into the same nozzle; dissolving the organic compound of metal aluminum in the solvent; introducing the other nozzle and simultaneously combusting. The high dispersibility of atomized liquid at a gas phase state and high-temperature and high-speed performance in gas phase combustion are skillfully applied, and a high-performance NSR catalytic material is obtained by selecting different precursors. The corresponding speed of a catalyst on NOx is effectively enhanced and the conversion quantity is raised. The prepared NSR catalyst has large specific surface area, high catalytic activity, high thermal stability and stro |
Author | CHEN DONGHUA ZHU XIAOQIN HU JIN WENG JIAFENG DAI YONGNIAN SHEN LI GUO YUZHONG GAO WENGUI |
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Snippet | The invention discloses a flame combustion synthetic method for primary preparation of NSR catalysts, comprising the steps: adopting metal organic compounds as... |
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Title | Flame combustion synthetic method for primary preparation of NSR catalysts |
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