A bicomponent catalyst for the selective formation of ethanol from synthesis gas

Autor:	D. Gutschick, G. Öhlmann, H. Ehwald, H. Ewald, H. Miessner, E. Schierhorn, M. Hermann
Rok vydání:	1991
Předmět:	chemistry.chemical_compound chemistry Inorganic chemistry General Engineering chemistry.chemical_element Zinc Temperature-programmed reduction Selectivity Oxygenate Carbon monoxide Rhodium Catalysis Syngas
Zdroj:	Applied Catalysis. 76:153-169
ISSN:	0166-9834
DOI:	10.1016/0166-9834(91)80044-w
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:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d7f0df52b3ff88b76d157b809b86e97 https://doi.org/10.1016/0166-9834(91)80044-w Zobrazit plný text záznamu