Characteristics of bimetallic cobalt and molybdenum catalysts supported on activated carbon or alumina in hydrodesulfurization |
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Authors: | Sang-Jin Moon Son-Ki Ihm |
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Affiliation: | (1) Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 305–304 Taejon, Korea;(2) Present address: Division of Chemical Engineering, Korea Research Institute of Chemical Technology, 305–606 Taejon, Korea |
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Abstract: | A series of bimetallic cobalt (Co) and molybdenum (Mo) catalysts supported on activated carbon or alumina were prepared, and
their activities in thiophene hydrodesulfurization and ethylene hydrogenation were compared. The nitric oxide (NO) chemisorption
and temperature programmed desorption (TPD) were used to characterize the nature of the synergistic active sites. Carbon supported
catalysts also demonstrated the synergism in activity, which is well known for alumina supported catalysts. The specific activity
and the adsorption stoichiometry of each site were interpreted from NO chemisorption. The possibility of NO as a probe molecule
for sulfide catalysts was provided by the present work. |
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Keywords: | |
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