Sintering-resistant Cu/B/Ca/Al2O3 catalysts for durable hydrogenation of sec-butyl acetate to 2-butanol and ethanol
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Add time:08/14/2019 Source:sciencedirect.com
Quaternary Cu/B/Ca/Al2O3 catalyst extrudates were prepared and optimized for hydrogenation of sec-butyl acetate (SBA) to 2-butanol and ethanol. The rationally designed catalyst with a B/Cu molar ratio of 3/1 exhibited an extraordinary resistance to Cu sintering during the reaction over 1000 h, due to the enhanced interaction by B2O3 between copper species and support. The slight loss in activity after the long-term test, caused mainly by the partial transformation of surface CaO to calcium acetate, could be easily recovered by calcination and the following reduction treatments, rendering it feasible to apply the catalyst to the industrial hydrogenation of SBA.
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