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Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide
The present study investigates a series of gallium-based catalysts supported on natural and composite aluminosilicate mesoporous supports in the CO2-assisted oxidative dehydrogenation of propane. The catalyst supports were prepared by mixing a functional material with a boehmite binder, the functional materials being derived from natural halloysite nanotubes (HNTs). Three different supports were used: pristine HNTs; HNTs with MCM-41 synthesized around halloysite; and HNTs with MCM-41 synthesized inside the halloysite lumen. The CO2-assisted oxidative propane dehydrogenation was tested in the range of 550–700°C at a CO2/C3H8 molar ratio of 2.0. All the catalysts showed comparable propane conversion (from 10–13% to 70–80%) and propylene selectivity (from 80–84 to 30–32%). The highest propylene space-time yield (6.5 mol kgcat–1 h–1) was observed for the Ga/HNT catalyst at 650°C.
Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide
The present study investigates a series of gallium-based catalysts supported on natural and composite aluminosilicate mesoporous supports in the CO2-assisted oxidative dehydrogenation of propane. The catalyst supports were prepared by mixing a functional material with a boehmite binder, the functional materials being derived from natural halloysite nanotubes (HNTs). Three different supports were used: pristine HNTs; HNTs with MCM-41 synthesized around halloysite; and HNTs with MCM-41 synthesized inside the halloysite lumen. The CO2-assisted oxidative propane dehydrogenation was tested in the range of 550–700°C at a CO2/C3H8 molar ratio of 2.0. All the catalysts showed comparable propane conversion (from 10–13% to 70–80%) and propylene selectivity (from 80–84 to 30–32%). The highest propylene space-time yield (6.5 mol kgcat–1 h–1) was observed for the Ga/HNT catalyst at 650°C.
Mesoporous Gallium-Based Catalysts for Oxidative Dehydrogenation of Propane in the Presence of Carbon Dioxide
Pet. Chem.
Melnikov, D. P. (author) / Smirnova, E. M. (author) / Reshetina, M. V. (author) / Glotov, A. P. (author) / Novikov, A. A. (author) / Gushchin, P. A. (author) / Wang, H. Q. (author) / Vinokurov, V. A. (author)
Petroleum Chemistry ; 63 ; 1228-1234
2023-10-01
7 pages
Article (Journal)
Electronic Resource
English
British Library Online Contents | 2014
|British Library Online Contents | 2014
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