期刊
RSC ADVANCES
卷 7, 期 27, 页码 16901-16907出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra02396k
关键词
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资金
- Education Department of Shaanxi Provincial Government Research Project [16JK1146]
- National Natural Science Foundation of China [21503125, 21502109]
- Funds of Research Programs of Shaanxi University of Technology [SLGQD13(2)-1]
Fuel precursors 2,5-bis(2-furylmethylidene) cyclopentanone (F2Cp) and 2-(2-furylmethylidene) cyclopentanone (FCp) were obtained through aldol condensation of cyclopentanone and furfural over solid acid catalysts under solvent-free conditions. Nafion exhibited the best performance among the investigated catalysts (Nafion, Amberlyst-15, Amberlyst-36, H-USY, ZSM-5, H-beta, and SiO2/Al2O3). Under optimized conditions, yields of F2Cp and FCp were 37.48% and 23.77%, respectively. Selectivities of F2Cp and FCp were 50.74% and 32.18%, respectively. Nafion showed good stability and did not deactivate during 4 runs. Meanwhile, a certain amount of humin was also generated during the reaction. The reaction mechanism for the aldol condensation of cyclopentanone and furfural and the formation mechanism of humin were also proposed.
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