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Cu-AI/Ce-AI complex oxide combustion catalysts, their preparation and use
Cu-AI/Ce-AI complex oxide combustion catalysts, their preparation and use
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机译:Cu-Al / Ce-Al复合氧化物燃烧催化剂,制备及用途
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摘要
The present invention relates to non-noble metal combustion catalyst for carbon monoxide comprising Cu—Al/Ce—Al complex oxides and aluminum oxide support. The catalysts comprise Ce—Al complex oxide and Cu—Al complex oxide successively loaded on the aluminum oxide support, wherein the loading weight ratio is 0.02-0.10 for Ce—Al—O/Al2O3 and 0.05-0.15 for Cu—Al—O/Al2O3, and the Cu—Al complex oxide is dispersed in cluster form on the surface of the aluminum oxide support pre-covered with high dispersed nanoparticles of the Ce—Al complex oxide. Furthermore, the present invention relates to a process for preparing the catalysts and their use as combustion promoter with high catalytic activity, high hydrothermal stability and ability of reducing NOx exhaust in the fluid catalytic cracking (FCC) process of petroleum refining.
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机译:本发明涉及一种用于一氧化碳的非贵金属燃烧催化剂,该催化剂包括Cu-Al / Ce-Al复合氧化物和氧化铝载体。所述催化剂包括依次负载在氧化铝载体上的CeAl复合氧化物和CuAl复合氧化物,其中CeAlAl / Al 2 Sub> O 3 Sub>,而Cu&AldO / Al 2 Sub> O 3 Sub>为0.05-0.15,CuAl复合氧化物以团簇形式分散在用高分散的铈铝复合氧化物纳米颗粒预先覆盖的氧化铝载体的表面。此外,本发明涉及具有高催化活性,高水热稳定性和减少石油精制的流化催化裂化(FCC)过程中的NOx排放能力的催化剂的制备方法及其用作助燃剂的用途。
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