Conversion of Ethanol into a Fraction of C3+ Hydrocarbons in the Presence of Gold-Containing Catalysts Based on a Zeolite MFI Support


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The results of a study on the activity and operational stability of an Au–Pd/MFI/Al2O3 catalyst in the reaction of ethanol conversion into a gasoline fraction of hydrocarbons are reported. In the presence of the Au–Pd/MFI/Al2O3 catalyst, ethanol was almost completely converted into an alkane–aromatic fraction of C3–C11 hydrocarbons at 300°C in an atmosphere of Ar; the yield of this fraction was as high as 90% on a feed carbon basis. It was established that, in the presence of the bimetallic Au–Pd catalyst, the yield of the target fraction increased by 10%, as compared with that on a monometallic Au-containing sample. The Au–Pd/MFI/Al2O3 catalyst exhibited much higher stability in a long-term experiment in comparison with the previously tested pilot sample of Pd–Zn/MFI/Al2O3. After a 40-h operation, the yield of the target fraction of C3+ hydrocarbons in the presence of the Au–Pd/MFI/Al2O3 catalyst decreased by 15%. The treatment of the catalyst with hydrogen led to the complete restoration of its activity. The structure of the Au–Pd active constituents was studied by transmission electron microscopy X-ray photoelectron spectroscopy. methods of the and microscopy.

Sobre autores

A. Chistyakov

Topchiev Institute of Petrochemical Synthesis; Moscow State University

Autor responsável pela correspondência
Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991; Moscow, 119991

P. Zharova

Topchiev Institute of Petrochemical Synthesis; Moscow State University

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991; Moscow, 119991

M. Gubanov

Topchiev Institute of Petrochemical Synthesis

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991

S. Nikolaev

Moscow State University

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991

T. Egorova

Moscow State University

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991

A. Gekhman

Kurnakov Institute of General and Inorganic Chemistry

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991

M. Tsodikov

Topchiev Institute of Petrochemical Synthesis

Email: chistyakov@ips.ac.ru
Rússia, Moscow, 119991

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