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CO hydrogenation to ethanol was carried out over Rh(1.5)/SiO 2 promoted with La and/or V oxides. Recent results at 230°C and 1.8bar have shown 21% ethanol selectivity for the doubly promoted Rh–La/V/SiO 2 . Here, we extend this work to examine the effects of reaction conditions – temperature, H 2 /CO ratio, space velocity, and pressure – on the activity and selectivity of these...
Unresolved mechanistic details of monomer formation in Fischer–Tropsch synthesis (FTS) and of its oxygen rejection routes are addressed here by combining kinetic and theoretical analyses of elementary steps on representative Fe and Co surfaces saturated with chemisorbed CO. These studies provide experimental and theoretical evidence for hydrogen-assisted CO activation as the predominant kinetically-relevant...
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