A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dehydrogenation of Cumene to α-Methylstyrene on [Re,W]/γ-Al2O3(K,Ce)/α-Al2O3 and [Fe,Cr]/γ-Al2O3(K,Ce)/α-Al2O3 Porous Ceramic Catalytic Converters
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 %.
Dehydrogenation of Cumene to α-Methylstyrene on [Re,W]/γ-Al2O3(K,Ce)/α-Al2O3 and [Fe,Cr]/γ-Al2O3(K,Ce)/α-Al2O3 Porous Ceramic Catalytic Converters
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 %.
Dehydrogenation of Cumene to α-Methylstyrene on [Re,W]/γ-Al2O3(K,Ce)/α-Al2O3 and [Fe,Cr]/γ-Al2O3(K,Ce)/α-Al2O3 Porous Ceramic Catalytic Converters
Pet. Chem.
Fedotov, A. S. (author) / Uvarov, V. I. (author) / Tsodikov, M. V. (author) / Paul, S. (author) / Simon, P. (author) / Marinova, M. (author) / Dumeignil, F. (author)
Petroleum Chemistry ; 60 ; 1268-1283
2020-11-01
16 pages
Article (Journal)
Electronic Resource
English
Dehydrogenation of Cumene to α-Methylstyrene over Tungsten-Containing Porous Ceramic Converters
| Springer Verlag | 2023
Microstructure and Strength of Al2O3/Al2O3 Joints Bonded with ZnO–Al2O3–B2O3–SiO2 Glass–Ceramic
| British Library Online Contents | 2014
| British Library Online Contents | 2005
Fabrication and performance of Al2O3/(W,Ti)C+Al2O3/TiC multilayered ceramic cutting tools
| British Library Online Contents | 2010