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Innovative flow-through reaction system for the sustainable production of phenolic monomers from lignocellulose catalyzed by supported Mo2C.
Maisterra, Maitane; Atienza-Martínez, María; Hablich, Karina; Moreira, Rui; Martínez-Merino, Víctor; Gandía, Luis M; Cornejo, Alfonso; Bimbela, Fernando.
Afiliación
  • Maisterra M; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Atienza-Martínez M; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Hablich K; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Moreira R; CIEPQPF, FCTUC, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, Coimbra, Portugal.
  • Martínez-Merino V; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Gandía LM; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Cornejo A; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
  • Bimbela F; Institute for Advanced Material and Mathematics (INAMAT2) -, Department of Sciences, Universidad Pública de Navarra, Ed. 'Los Acebos', Campus de Arrosadia S/N, 31006, Pamplona, Spain.
ChemSusChem ; 17(9): e202301591, 2024 May 08.
Article en En | MEDLINE | ID: mdl-38179896
ABSTRACT
Molybdenum carbide supported on activated carbon (ß-Mo2C/AC) has been tested as catalyst in the reductive catalytic fractionation (RCF) of lignocellulosic biomass both in batch and in Flow-Through (FT) reaction systems. High phenolic monomer yields (34 wt.%) and selectivity to monomers with reduced side alkyl chains (up to 80 wt.%) could be achieved in batch in the presence of hydrogen. FT-RCF were made with no hydrogen feed, thus via transfer hydrogenation from ethanol. Similar selectivity could be attained in FT-RCF using high catalyst/biomass ratios (0.6) and high molybdenum loading (35 wt.%) in the catalyst, although selectivity decreased with lower catalyst/biomass ratios or molybdenum contents. Regardless of these parameters, high delignification of the lignocellulosic biomass and similar monomer yields were observed in the FT mode (13-15 wt.%) while preserving the holocellulose fractions in the delignified pulp. FT-RCF system outperforms the batch reaction mode in the absence of hydrogen, both in terms of activity and selectivity to reduced monomers that is attributed to the two-step non-equilibrium processes and the removal of diffusional limitations that occur in the FT mode. Even though some molybdenum leaching was detected, the catalytic performance could be maintained with negligible loss of activity or selectivity for 15 consecutive runs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: España Pais de publicación: Alemania