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A series of La-promoted cobalt–copper catalysts with various Co:Cu ratios have been used to study the conversion of syngas to oxygenates and hydrocarbons. In particular, the effect of the Co:Cu composition on the selectivity to oxygenates versus hydrocarbons has been examined.Three bulk catalysts were synthesized by coprecipitation, reduced in H2/He flow, and then cobalt carbide was formed during...
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...
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