Isomerization of Xylenes in the Presence of Pt-Containing Catalysts Based on Halloysite Aluminosilicate Nanotubes |
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| Authors: | A P Glotov E A Roldugina M I Artemova E M Smirnova N R Demikhova V D Stytsenko S V Egazar’yants A L Maksimov V A Vinokurov |
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| Institution: | 1.Gubkin Russian State University of Oil and Gas,Moscow,Russia;2.Moscow State University,Moscow,Russia;3.Topchiev Institute of Petrochemical Synthesis,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Pt-containing catalysts based on halloysite aluminosilicate nanotubes and ZSM-5 zeolite were synthesized. The structure of the materials was confirmed by low-temperature nitrogen adsorption/desorption and by transmission electron microscopy. The activity and selectivity of the synthesized catalysts based on micromesoporous supports in isomerization of the xylene reforming fraction was studied on a flow-through laboratory installation with a fixed catalyst bed in the temperature interval 360–440°С at elevated hydrogen pressure. The influence exerted by the textural characteristics of the support and acidity of the materials on the catalyst activity in isomerization of o- and m-xylenes and of ethylbenzene with the aim of obtaining p-xylene was studied. |
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