Catalytic performance of ternary Mg-Al-Ce oxides for ethanol conversion into 1-butanol in a flow reactor |
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| Affiliation: | L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine,31 Prosp.Nauky, 03028 Kyiv, Ukraine;Institute of Physics of the National Academy of Sciences of Ukraine, 46 Prosp.Nauky, 03028 Kyiv, Ukraine;Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science,V Hole?ovi?kách 2, 18000 Prague, Czech Republic;National Institute of Chemistry, Department of Inorganic Chemistry and Technology,Hajdrihova 19, SI-1001 Ljubljana, Slovenia |
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| Abstract: | An investigation of hydrotalcite-derived ternary Mg-Al-Ce oxides as catalysts for vapour phase condensation of ethanol to 1-butanol in a flow reactor under atmospheric pressure was carried out. The Mg-Al-Ce oxide systems with Mg/(Al +Ce) ratio from 1 to 4 were synthesized and characterized by XRD, SEM, NMR, and XPS. The study of acid-base characteristics of the systems with different Mg/(Al+Ce) ratio by NH_3/CO_2 quasi-equilibrium thermal desorption techniques shows that the ratio of the catalyst oxide components(Mg, Al, Ce) can provide acid/base capacity ratio close to 3 for the effectivity of the target process. The highest selectivity 68% is reached over Mg-Al-Ce oxide catalyst with the ratio of Mg/(Al+Ce) = 2. |
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