Enhanced production of jet fuel precursors via furfural/cyclopentanone aldol condensation by synergistic pairing TiO 2 with nano-ZSM-5 zeolite.

Autor: Cueto J; Thermochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, E28935, Móstoles, Madrid, Spain. Electronic address: jennifer.cueto@imdea.org., de la Calle D; Thermochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, E28935, Móstoles, Madrid, Spain; Group of Chemical and Environmental Engineering, Rey Juan Carlos University, C/ Tulipán s/n, E28933, Móstoles, Madrid, Spain. Electronic address: daniel.delacalle@imdea.org., Mar Alonso-Doncel MD; Thermochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, E28935, Móstoles, Madrid, Spain. Electronic address: mar.alonso@imdea.org., Giner EA; Thermochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, E28935, Móstoles, Madrid, Spain. Electronic address: elena.giner@imdea.org., García-Muñoz RA; Group of Chemical and Environmental Engineering, Rey Juan Carlos University, C/ Tulipán s/n, E28933, Móstoles, Madrid, Spain. Electronic address: rafael.garcia@urjc.es., Serrano DP; Thermochemical Processes Unit, IMDEA Energy Institute, Avda. Ramón de la Sagra, 3, E28935, Móstoles, Madrid, Spain; Group of Chemical and Environmental Engineering, Rey Juan Carlos University, C/ Tulipán s/n, E28933, Móstoles, Madrid, Spain. Electronic address: david.serrano@imdea.org.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2024 Nov 26; Vol. 418, pp. 131877. Date of Electronic Publication: 2024 Nov 26.
DOI: 10.1016/j.biortech.2024.131877
Abstrakt: Aldol condensation of biomass-derived compounds offers a sustainable route to jet fuel precursors. This study explores catalysts based on nanocrystalline ZSM-5 zeolite (n-ZSM-5) modified with various metals (Ca, Mg, Sn, Ti, Zr) for the aldol condensation of furfural (FFL) and cyclopentanone (CPO). While both reactants can enter the ZSM-5 micropores, the resulting C10 (FC) and C15 (F 2 C) adducts are too large to be formed within or to exit the microporosity, being instead produced over the external acid sites. Metal modification significantly impacts catalytic activity: Ca and Mg reduce conversion, Sn is neutral, whereas Zr and Ti leads to enhanced performance. The TiO 2 /n-ZSM-5 catalyst shows by far the best behavior, doubling FFL conversion and sharply increasing the FC + F 2 C yield, which is attributed to a synergistic effect arising from the generation of accessible weak Lewis acid sites by highly dispersed TiO 2 that complement the external Brønsted acidity of ZSM-5.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: