One-Stage Synthesis of Propylene from Ethylene Using Pd–Re2O7/B2O3–Al2O3 Catalyst
E. A. BULUCHEVSKIY, M. S. MIKHAILOVA and A. V. LAVRENOV
Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
E-mail: bulu@ihcp.oscsbras.ru
Keywords: palladium sorption, ethylene, propylene, oligomerization, metathesis
Pages: 47–51
Abstract
Equilibrium was investigated concerning the sorption of palladium from the H2PdCl4 and Pd(NH3)4Cl2 solutions onto B2O3–Al2O3 carrier. It is demonstrated that the sorption equilibrium is described by Langmuir equation. According the results of testing the Pd/B2O3–Al2O3 samples in the course of oligomerization it has been found that the optimum content of palladium in the catalyst should be equal to 0.5 mass %, whereas the optimum precursor of palladium should be presented by palladium chloride complex. The catalytic properties of Pd–Re2O7/B2O3–Al2O3 system in the one-stage propylene synthesis from ethylene were studied. It has been demonstrated that it is possible to obtain propylene with the yield equal to 77–83 % with respect to the theoretically determined one.
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