Conversion of bio-oxygenates into hydrocarbons in the presence of a commercial Pt–Re/Al2O3 catalyst
- Authors: Zharova P.A.1,2, Gekhman A.E.2,3, Kriventsov V.V.4, Tsodikov M.V.1, Chistyakov A.V.1,2
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Affiliations:
- Topchiev Institute of Petrochemical Synthesis
- Moscow State University
- Kurnakov Institute of General and Inorganic Chemistry
- Boreskov Institute of Catalysis, Siberian Branch
- Issue: Vol 57, No 6 (2016)
- Pages: 812-820
- Section: Article
- URL: https://journal-vniispk.ru/0023-1584/article/view/162835
- DOI: https://doi.org/10.1134/S0023158416060033
- ID: 162835
Cite item
Abstract
It was found that the preliminarily reduced commercial platinum–rhenium catalyst PR-71 exhibited high activity in the conversion of ethanol into C4–C12 olefins and in the cross-condensation reactions of ethanol with glycerol, acetone, n-propanol, and isopropanol. Acetone and glycerol exhibited the highest reactivity in the cross-condensation reactions; this manifested itself in an increase in the total yield of the target fraction of C4–C12 hydrocarbons and in a more than 10-fold increase in the yield of products containing the odd numbers of carbon atoms, as compared with the conversion of individual ethanol. The structural studies performed by extended X-ray absorption fine structure (EXAFS) spectroscopy and transmission electron microscopy showed that the high selectivity of PR-71 can be caused by the formation of bimetallic Pt–Re and Pt–Al clusters in the course of the prolonged preliminary reduction of the catalyst.
Keywords
About the authors
P. A. Zharova
Topchiev Institute of Petrochemical Synthesis; Moscow State University
Email: chistyakov@ips.ac.ru
Russian Federation, Moscow, 119991; Moscow, 119991
A. E. Gekhman
Moscow State University; Kurnakov Institute of General and Inorganic Chemistry
Email: chistyakov@ips.ac.ru
Russian Federation, Moscow, 119991; Moscow, 119991
V. V. Kriventsov
Boreskov Institute of Catalysis, Siberian Branch
Email: chistyakov@ips.ac.ru
Russian Federation, Novosibirsk, 630090
M. V. Tsodikov
Topchiev Institute of Petrochemical Synthesis
Email: chistyakov@ips.ac.ru
Russian Federation, Moscow, 119991
A. V. Chistyakov
Topchiev Institute of Petrochemical Synthesis; Moscow State University
Author for correspondence.
Email: chistyakov@ips.ac.ru
Russian Federation, Moscow, 119991; Moscow, 119991
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