Alumina-supported cobalt phosphide as a new catalyst for preferential CO oxidation at high temperatures |
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Authors: | Siqi Wang Yanzhao Cui Yan Shi Zhiwei Yao Yue Sun |
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Institution: | Department of Petrochemical Engineering, College of Chemistry Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, P. R. China |
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Abstract: | AbstractNovel alumina-supported cobalt phosphide catalysts (designated as CoP-3, CoP-10, CoP-20 and CoP-40) prepared from the precursors with Co loadings of 3, 10, 20 and 40?wt% by H2-temperature-programmed reaction were investigated as potential catalysts for preferential CO oxidation (PROX) in excess H2 at high temperatures. It was found that the catalytic activities of these Co2P/γ-Al2O3 catalysts were related to their Co loadings. The CoP-10 catalyst showed the best PROX performance in temperature range of 220–240?°C, which was attributed to its optimal microstructures (high surface area, small particle size and big amount of active site). |
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Keywords: | Alumina-supported cobalt phosphide preferential CO oxidation H2-rich stream Co loading |
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