Adsorption and reaction studies on cobalt/alumina catalysts prepared by changing pH coprecipitation |
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| Authors: | A Nilgün Akin A Erhan Aksoylu and Z Ilsen ?nsan |
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| Institution: | (1) Department of Chemical Engineering, Bogazici University, 80815 Bebek, Istanbul, Turkey;(2) Present address: Department of Chemical Engineering, Kocaeli University, 41040 Kocaeli, Turkey;(3) Present address: Department of Chemical Engineering, University of Porto, 4099 Porto Codex, Portugal |
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| Abstract: | Co/Al2O3 catalysts prepared by changing pH coprecipitation with Co loadings in the 8.7–36 wt.% range were analyzed by TSA, TPV, pore
structure, XRD as well as CO, H2, O2 adsorption and CO hydrogenation. High O2 uptake and reducibility coupled with low dispersion and constant MSA above 17 wt.% Co indicate large crystallites that are
less exposed to H2. CO hydrogenation per Co site decreases with increasing dispersion or decreasing metal loading. |
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| Keywords: | coprecipitation Co/Al2O3 adsorption of CO H2 and O2 |
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