Dehydrogenation of cumene to alpha-methylstyrene on [re,w]/gamma-al2o3(k,ce)/alpha-al2o3 and [fe,cr]/gamma-al2o3(k,ce)/alpha-al2o3 porous ceramic catalytic converters - Université de Lille Accéder directement au contenu
Article Dans Une Revue Neftekhimiya / Petroleum Chemistry Année : 2020

Dehydrogenation of cumene to alpha-methylstyrene on [re,w]/gamma-al2o3(k,ce)/alpha-al2o3 and [fe,cr]/gamma-al2o3(k,ce)/alpha-al2o3 porous ceramic catalytic converters

Résumé

The features of cumene dehydrogenation to α-methylstyrene on unique porous ceramic catalytic converters having the composition [Re,W]/γ-Al2O3(K,Ce)/α-Al2O3 and [Fe,Cr]/γ-Al2O3(K,Ce)/α-Al2O3, obtained using self-propagating high-temperature synthesis and the sol–gel method, have been studied. It has been established that at an optimum temperature of 625°C, the rhenium–tungsten-containing system has approximately 1.5 times higher catalytic activity than the iron–chromium system. On the Re–W-containing catalytic converter at the optimum temperature, the cumene conversion is ~71 mol %, the α-methylstyrene yield is ~77 mol % of theoretical, and the α-methylstyrene content in the products is ~35 mol %, with productivity for the desired product being ~7.4 g/(h gact.comp.). The degree of catalyst coking for 6 h of the experiment did not exceed 5 wt %.
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Dates et versions

hal-04442618 , version 1 (06-02-2024)

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A. S. Fedotov, V. I. Uvarov, M. V. Tsodikov, Sébastien Paul, Pardis Simon, et al.. Dehydrogenation of cumene to alpha-methylstyrene on [re,w]/gamma-al2o3(k,ce)/alpha-al2o3 and [fe,cr]/gamma-al2o3(k,ce)/alpha-al2o3 porous ceramic catalytic converters. Neftekhimiya / Petroleum Chemistry, 2020, Neftekhimiya / Petroleum Chemistry, 60, pp.1268-1283. ⟨10.1134/S0965544120110080⟩. ⟨hal-04442618⟩
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