Enhanced production of jet fuel precursors via furfural/cyclopentanone aldol condensation by synergistic pairing TiO2 with nano-ZSM-5 zeolite

被引：0

作者：

Cueto, Jennifer ^{[1
]}

de la Calle, Daniel ^{[1
,2
]}

Alonso-Doncel, Maria del Mar ^{[1
]}

Giner, Elena A. ^{[1
]}

Garcia-Munoz, Rafael A. ^{[2
]}

Serrano, David P. ^{[1
,2
]}

机构：

[1] IMDEA Energy Inst, Thermochem Proc Unit, Avda Ramon Sagra 3, E-28935 Mostoles, Madrid, Spain

[2] Rey Juan Carlos Univ, Grp Chem & Environm Engn, C Tulipan S-N, E-28933 Mostoles, Madrid, Spain

来源：

BIORESOURCE TECHNOLOGY | 2025年 / 418卷

基金：

欧洲研究理事会;

关键词：

Zeolite; Metal oxides; Lignocellulosic biomass; Titanium oxide; Jet fuel; ACID SITES; BIOMASS; ACETONE; LEWIS; TRANSFORMATIONS; CYCLOPENTANONE; CATALYSTS; ZSM-5;

D O I：

10.1016/j.biortech.2024.131877

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 (F2C) 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 TiO2/n-ZSM-5 catalyst shows by far the best behavior, doubling FFL conversion and sharply increasing the FC + F2C yield, which is attributed to a synergistic effect arising from the generation of accessible weak Lewis acid sites by highly dispersed TiO2 that complement the external Br & Oslash;nsted acidity of ZSM-5.

引用

页数：13