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Article

Evaluation of Catalysts for the Metathesis of Ethene and 2-Butene to Propene

1
Max Planck Institute for Dynamics of Complex Technical Systems, 39106 Magdeburg, Germany
2
Unidad Académica de Ciencias Químicas y Unidad Académica de Ingeniería Eléctrica, Universidad Autónoma de Zacatecas, Zacatecas 98000, Mexico
3
Institute of Process Engineering, Otto von Guericke University, 39106 Magdeburg, Germany
4
Process Engineering, Anhalt University of Applied Sciences, 06366 Köthen, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Andres Aguayo, Javier Bilbao Elorriaga, Eva Epelde Bejerano and Ainara Ateka
Catalysts 2022, 12(2), 188; https://doi.org/10.3390/catal12020188
Received: 19 November 2021 / Revised: 22 January 2022 / Accepted: 24 January 2022 / Published: 2 February 2022
(This article belongs to the Special Issue New Trends in Catalysis for Light Olefin Production)
Different metathesis catalysts were evaluated regarding their activity for propene production from ethene and trans-butene feedstocks. Nickel, molybdenum, rhenium and tungsten, along with bimetallic nickel-rhenium systems were applied with commercial supports and self-synthesized MCM-41. For the latter support the Si/Al ratio was adjusted as an additional optimization parameter (Si/Al = 60). Attractive activities were observed using Re and NiRe based catalysts at moderate temperatures of 200–250 °C. In contrast, the tungsten-based catalysts were only active above 450 °C. Three catalysts, namely Re/AlMCM-41(60), NiRe/mix (1:1) and W/SiO2 offered propene selectivity’s exceeding 40% at attractive conversion rates. These catalysts were characterized by BET, powder XRD, NH3-TPD and TPR-TPO-TPR cycles. At specific reaction temperatures, reaction-regeneration cycles were performed, which revealed that for the Re and W catalysts the initial reactant conversions and propene selectivity can be recovered. In contrast, for the NiRe catalyst, a continuous, gradual and irreversible decrease of activity was observed. Even though the tungsten catalyst was operated at the highest temperature, no irreversible decrease in conversion and propene selectivity occurred. Therefore, this catalyst has potential as a promising candidate for the synthesis of propene. View Full-Text
Keywords: propene; metathesis; heterogeneous catalysis; stability; regeneration propene; metathesis; heterogeneous catalysis; stability; regeneration
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MDPI and ACS Style

Felischak, M.; Wolff, T.; Alvarado Perea, L.; Seidel-Morgenstern, A.; Hamel, C. Evaluation of Catalysts for the Metathesis of Ethene and 2-Butene to Propene. Catalysts 2022, 12, 188. https://doi.org/10.3390/catal12020188

AMA Style

Felischak M, Wolff T, Alvarado Perea L, Seidel-Morgenstern A, Hamel C. Evaluation of Catalysts for the Metathesis of Ethene and 2-Butene to Propene. Catalysts. 2022; 12(2):188. https://doi.org/10.3390/catal12020188

Chicago/Turabian Style

Felischak, Matthias, Tanya Wolff, Leo Alvarado Perea, Andreas Seidel-Morgenstern, and Christof Hamel. 2022. "Evaluation of Catalysts for the Metathesis of Ethene and 2-Butene to Propene" Catalysts 12, no. 2: 188. https://doi.org/10.3390/catal12020188

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