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- Title
Conversion of Ethanol into a Fraction of C<sub>3+</sub> Hydrocarbons in the Presence of Gold-Containing Catalysts Based on a Zeolite MFI Support.
- Authors
Chistyakov, A. V.; Zharova, P. A.; Gubanov, M. A.; Nikolaev, S. A.; Egorova, T. B.; Gekhman, A. E.; Tsodikov, M. V.
- Abstract
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.
- Subjects
ETHANOL; ALCOHOLS (Chemical class); CHEMICAL reactions; BIOMASS energy; XYLENE
- Publication
Kinetics & Catalysis, 2017, Vol 58, Issue 6, p741
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158417060039