期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 276, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2020.119069
关键词
Biomass; aldol condensation; Mixed oxide catalyst; 5-Hydroxymethylfurfural; C-C coupling; Fuel precursors
资金
- Slovenian Research Agency (ARRS) [P2-0152, N2-0075]
Basic magnesium-lanthanum (Mg-La) mixed oxide materials with tunable interaction between Mg and La oxides were prepared for the low temperature production of green diesel and jet fuel intermediates via aldol condensation reaction. The prepared materials were thoroughly analysedby microscopic and spectroscopic techniques to elucidate its structural properties, including the determination of surface area and basic strengths. Among the tested materials, ML-3 catalyst reflects superior activity for C-C bond formation between 5-hydroxymethylfurfural (HMF) and acetone, exhibiting> 99% HMF conversion and 89% yield of the precursory C-9 4-[5-(Hydroxymethyl)-2-furanyl]-3-butene-2-one product (HAc). Higher conversion and better product selectivity of ML-3 catalyst ascribe to the higher basic strength, moderate surface area and strong interaction between both the metals (Mg and La) in their mixed oxide forms. To understand the role of active sites, zeroth, first and second order kinetics were plotted, and a possible mechanism of C-C bond formation was hypothesized. In order to rationalize the role of active ML-3 catalyst, HMF (and furfural) chain lengths were extended with different carbonyl compounds leading the formation of branched and cyclic chain (C-9-C-15) hydrocarbon precursors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据