I. A. Kostyukov, O. A. Ponomareva, Yu. G. Kolyagin, M. I. Petz, O. V. Shutkina, T. O. Bok, I. I. Ivanova
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引用次数: 0
Abstract
The physicochemical properties of BEA zeolites with SiO2/Al2O3 ratios of about 40–50 and 200–250 synthesized in fluoride and alkaline media have been characterized, and their catalytic activity have been tested in liquid-phase disproportionation of toluene. It has been found that samples with a close SiO2/Al2O3 ratio obtained by fluoride synthesis have a smaller number of acid sites. The samples with lower SiO2/Al2O3 ratios exhibite a higher activity in toluene disproportionation than the samples with lower Al content, regardless of the synthesis method. The BEA zeolites that have Al atoms in the T6 positions of the framework which are more active. Synthesis in an alkaline medium promotes the localization of aluminum at the T6 position.
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.
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