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      Oxidative Dehydrogenation of Propane over Vanadium-Containing Faujasite Zeolite

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          Abstract

          Oxidative dehydrogenation (ODH) of light alkanes to olefins—in particular, using vanadium-based catalysts—is a promising alternative to the dehydrogenation process. Here, we investigate how the activity of the vanadium phase in ODH is related to its dispersion in porous matrices. An attempt was made to synthesize catalysts in which vanadium was deposited on a microporous faujasite zeolite (FAU) with the hierarchical (desilicated) FAU as supports. These yielded different catalysts with varying amounts and types of vanadium phase and the porosity of the support. The phase composition of the catalysts was confirmed by X-ray diffraction (XRD); low temperature nitrogen sorption experiments resulted in their surface area and pore volumes, and reducibility was measured with a temperature-programmed reduction with a hydrogen (H 2-TPR) method. The character of vanadium was studied by UV-VIS spectroscopy. The obtained samples were subjected to catalytic tests in the oxidative dehydrogenation of propane in a fixed-bed gas flow reactor with a gas chromatograph to detect subtract and reaction products at a temperature range from 400–500 °C, with varying contact times. The sample containing 6 wt% of vanadium deposited on the desilicated FAU appeared the most active. The activity was ascribed to the presence of the dispersed vanadium ions in the tetragonal coordination environment and support mesoporosity.

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          Generalized Gradient Approximation Made Simple

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            Oxidative dehydrogenation of ethane and propane: How far from commercial implementation?

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              Critical Literature Review of the Kinetics for the Oxidative Dehydrogenation of Propane over Well-Defined Supported Vanadium Oxide Catalysts

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                Author and article information

                Journal
                Molecules
                Molecules
                molecules
                Molecules
                MDPI
                1420-3049
                23 April 2020
                April 2020
                : 25
                : 8
                : 1961
                Affiliations
                [1 ]Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland; ncsmolil@ 123456cyf-kr.edu.pl (M.S.); ncsamson@ 123456cyf-kr.edu.pl (K.S.); tingzhou1995@ 123456yahoo.com (T.Z.); ncduracz@ 123456cyf-kr.edu.pl (D.D.); nbruggie@ 123456cyf-kr.edu.pl (M.R.-M.); ncmatusz@ 123456cyf-kr.edu.pl (A.D.-M.)
                [2 ]Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 30-155 Krakow, Poland
                Author notes
                [* ]Correspondence: nczbik@ 123456cyf-kr.edu.pl ; Tel.: +48-12-639-5160
                Author information
                https://orcid.org/0000-0002-3388-6683
                https://orcid.org/0000-0002-1658-0228
                https://orcid.org/0000-0001-9323-1710
                Article
                molecules-25-01961
                10.3390/molecules25081961
                7221564
                32340139
                006fd8f9-7efa-4025-bf53-336b12464c3d
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 18 February 2020
                : 18 April 2020
                Categories
                Article

                oxidative dehydrogenation,catalysis,faujasite,zeolite y,hierarchical zeolites,vanadium,propane

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