Cu-Al/Ce-Al complex oxide combustion catalysts, their preparation and use

Year	Description
2001	Invention patented by Bingxiong Lin, Wanjing Zhang, Yingjun Liu, Shijie Li, and Neng Li on April 3rd, 2001. Abstract: 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/Al.sub.2 O.sub.3 and 0.05-0.15 for Cu--Al--O/Al.sub.2 O.sub.3, 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.
Source: selected by the editor from original sources.

Invention: Cu-Al/Ce-Al complex oxide combustion catalysts, their preparation and use