D. P. Melnikov, E. M. Smirnova, M. V. Reshetina, A. P. Glotov, A. A. Novikov, P. A. Gushchin, H. Q. Wang, V. A. Vinokurov
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引用次数: 0
Abstract
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.
期刊介绍:
Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas.
Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.