Investigation of the Catalytic Activity of High–Silica Zeolite Catalysts in the Joint Conversion of Butane and Hexane
N. V. Ostanina1, D. V. Golinky1, A. S. Belyi1,2, V. V. Pashkov1, I. E. Udras1, A. V. Vosmerikov3 and T. I. Gulyaeva1
1Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences, Ul. Neftezаvodskаya 54, Omsk 644040 (Russia)
2Omsk State Technical University, Pr. Mira 11, Omsk 644050 (Russia)
3Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Akademicheskiy 4, Tomsk 634021 (Russia)
Keywords: zeolite, aromatic hydrocarbons, conversion, selectivity, butane, hexane, joint transformation
Abstract
Acid properties and catalytic activity of high-silica zeolites of ZSM–5 type modified with platinum and gallium were studied in the process of joint conversion of butane and hexane. It was demonstrated that the introduction of modifying metals (Ga, Pt) at the stage of hydrothermal synthesis changes the acid and catalytic properties of initial zeolite. The highest efficiency in the process of aromatization of alkanes under study is exhibited by Ga–НZSM–5. With all samples (Н–ZSM–5, Ga–НZSM–5, Pt–НZSM–5), the effect of the joint transformation of butane and hexane was not discovered.
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