Journal
CATALYSIS COMMUNICATIONS
Volume 149, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2020.106207
Keywords
Biomass; Furfural; Aldol condensation; La2O2CO3; La2O3
Categories
Funding
- Natural Science Foundation in Jiangsu Province [BK20170707, BK20180548]
- Natural Science Foundation of China [21802073, 21878161]
- Nanjing Agricultural University [68Q-0603]
- Agriculture and Food Research Initiative Competitive Grant [2016-67021-24533]
- National Institute of Food and Agriculture, United States Department of Agriculture [2018-67009-27904]
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Aldol condensation of furfural with acetone over basic catalysts produces furanic adducts that can be transformed into diesel fuels. This study synthesized La2O2CO3-promoted ZnO-Al2O3 catalysts with medium strength basic sites, showing improved catalytic performance. The medium strength basic sites were found to be especially active for aldol condensation reactions.
Aldol condensation of furfural with acetone over basic catalysts allows the production of furanic adducts 4-(2-furyl)-3-buten-2-one (FAc, C8) and 1,5-di-2- furanyl-1,4-pentadien-3-one (F2Ac, C13)) that can be transformed into high-quality diesel fuels by further hydrogenation. However, the development of efficient basic catalysts and understanding of role of basic sites with different strength are still required. In this work, monoclinic and hexagonal La2O2CO3 promoted ZnO-Al2O3 catalysts were synthesized with higher concentration of medium strength basic sites and better catalytic performance as compared with La2O3 and ZnO-Al2O3. This work demonstrated that the medium strength basic sites were especially active for aldol condensation reactions.
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