Metathesis of trans-2-butene and ethylene to propylene on the catalysts based on molybdenum
Abstract
New aluminum-carbon sorbent (Al2O3-С) having a developed surface (430 m2/g), high adsorption capacity, mechanical strength (at least 5 N/mm2) used as a support in the metathesis reaction of ethylene and 2-butene into propylene, in order to extend the lifetime of molybdenum oxide catalysts. The morphology and texture characteristics of the surface of 10 % MoO3/Al2O3-С and comparative sample – 10 % MoO3/Al2O3 were investigated by SEM and adsorption. The activation of catalysts was studied using the thermal analysis. Catalytic tests in metathesis reaction of ethylene and trans-2-butene to propylene (22–150 °C, pressure 10 kg/cm2, C2H4/C4H8 = 1) were performed. It is shown that the catalyst MoO3/Al2O3-С compared with MoO3/γ-Al2O provides higher conversion of the reactants, more propylene selectivity and longer life. The MoO3/Al2O3-С catalyst may be recommended for industrial use in the metathesis of ethylene and 2-butene as compared to the commercial catalyst WO3/SiO2, it permits process under milder conditions and with a high yield of the desired product.
About the Authors
A. V. Gordeev
Томский государственный университет
Russian Federation
Russian Federation
A. S. Knyazev
Томский государственный университет
Russian Federation
Russian Federation
O. V. Vodyankina
Томский государственный университет
Russian Federation
Russian Federation
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Review
For citations:
Gordeev A.V., Knyazev A.S., Vodyankina O.V. Metathesis of trans-2-butene and ethylene to propylene on the catalysts based on molybdenum. Kataliz v promyshlennosti. 2013;(6):30-36. (In Russ.)
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