Abstract
A Ni loaded catalyst on mesoporous ceria, with a large surface area, prepared through the surfactant-assisted precipitation and impregnation method was investigated as an efficient catalyst for propane partial oxidation to produce synthesis gas. The results show that 2.5 wt% Ni/CeO2 had the optimum Ni loading, exhibiting the highest catalytic propane conversion. It also showed excellent stability, with no obvious activity drop after a 10 h time-on-stream reaction and slightly decreased in H2 and CO yields. The investigation of the reactant composition effect on carbon formation showed that by decreasing the C/O2 ratio the content of accumulated carbon decreased and propane conversion increased. The good activity of the Ni/CeO2 can be ascribed to the high surface area and rich surface defects of the ceria support and a high dispersion of active sites (Ni nanoparticles).
Highlights
The utilization of light hydrocarbon compounds, such as butane and propane, will become vital as liquid resources decrease in the future
One effective strategy is to convert these light hydrocarbons into syngas, which can be processed into chemicals by a variety of technologies [1,2,3]
We have developed a nanocrystalline nickel catalyst loaded on mesostructured CeO2, This reaction system was well studied by evaluating the influences of the feed ratio and
Summary
The utilization of light hydrocarbon compounds, such as butane and propane, will become vital as liquid resources decrease in the future. We have developed a nanocrystalline nickel catalyst loaded on mesostructured CeO2 , This reaction system was well studied by evaluating the influences of the feed ratio and This reaction space velocity) GHSV on the catalytic performance of the optimized Ni/CeO2. The system was well studied by evaluating the influences of the feed ratio and (gas hourly space velocity) carbon deposition phenomenon on the as-prepared catalyst, under different reaction conditions, was GHSV on the catalytic performance of the optimized Ni/CeO2. Phenomenon on the as-prepared catalyst, under different reaction conditions, was investigated
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