| Autor: |
D. Gutschick, G. Öhlmann, H. Ehwald, H. Ewald, H. Miessner, E. Schierhorn, M. Hermann |
| Rok vydání: |
1991 |
| Předmět: |
|
| Zdroj: |
Applied Catalysis. 76:153-169 |
| ISSN: |
0166-9834 |
| Popis: |
Multipromoted Rh-Mn-Li/SiO2 and Rh-Ir-Mn-Li/SiO2 catalysts for the selective hydrogenation of carbon monoxide to oxygenates have been combined with a selective hydrogenation component CuO-ZnO/SiO2 to produce ethanol with high activity and selectivity. Different degrees of mixing the two components, including a simultaneous impregnation of all components, have been applied to elucidate their mutual influence. It has been shown by temperature-programmed reduction (TPR) that the differences in the catalytic behavior could be explained by the different extent of mutual influence of dependence on the degree of mixing. To avoid a poisoning effect of zinc and/or copper to the active sites of rhodium, the mixture of the two components should not be too intimate. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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