Lopez Olmos, CristinaMorales, María V.Guerrero Ruíz, Antonio RicardoRodríguez Ramos, Inmaculada2024-11-062024-11-062020Cristina Lopez-Olmos, María V. Morales, Antonio Guerrero-Ruiz, and Inmaculada Rodríguez-Ramos Industrial & Engineering Chemistry Research 2020 59 (38), 16626-16636 DOI: 10.1021/acs.iecr.0c041130888-5885 | eISSN 1520-5045https://doi.org/10.1021/acs.iecr.0c04113https://hdl.handle.net/20.500.14468/24269The registered version of this article, first published in “Industrial & Engineering Chemistry Research 2020 59 (38)", is available online at the publisher's website: ACS Publications, https://doi.org/10.1021/acs.iecr.0c04113 La versión registrada de este artículo, publicado por primera vez en “Industrial & Engineering Chemistry Research 2020 59 (38)", está disponible en línea en el sitio web del editor: ACS Publications, https://doi.org/10.1021/acs.iecr.0c04113Bifunctional catalysts supported over high-surface-area graphite comprising copper and a series of metallic oxides (MgO, BaO, ZnO, or MnO) that exhibit different acid/base properties were studied in the ethanol condensation reaction to 1- butanol in a continuous flow reactor. This condensation reaction goes through the Guerbet mechanism, consisting of a multistep process based on hydrogenation/dehydrogenation reactions as well as base-catalyzed aldol condensation and acid-catalyzed dehydration reactions. The catalytic tests were performed in a fixed-bed reactor working in the gas phase at 50 bar and 503 K. The catalyst 5Cu-Mn/G exhibited the highest yield toward 1-butanol followed closely by 5Cu-Mg/G, unlike their counterparts with BaO and ZnO as the metal oxide. The cooperative action between the metal function as the hydrogenating/dehydrogenating agent and the suitable quantity of medium-high-strength basic sites and medium-weak-strength acid sites is responsible for the highest 1- butanol yields.eninfo:eu-repo/semantics/openAccess23 Química::2303 Química inorgánicaartículoCatalystsCopperEthanolOxidesPhysical and chemical processes