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Production of liquid fuel intermediates from furfural via aldol condensation over Lewis acid zeolite catalysts

Abstract

Aldol condensation reactions between furfural and acetone can be used to produce liquid fuel intermediates. It was found that tin containing zeolites with MFI (Sn-MFI) and BEA* (Sn-Beta) framework structure are effective for C-C bond formation via the aldol condensation reactions between furfural and acetone. The aldol condensation between furfural and acetone produced two main products, 4- (2-furyl)-3-buten-2-one (FAc) and 1, 5-di-2-furanyl-1, 4-pentadien-3-one (F2Ac). Although both these catalysts were active for the aldol condensation reactions, different selectivities to aldol products were observed over Sn-MFI and Sn-Beta. FAc and F2Ac were formed over Sn-Beta catalyst with a selectivity to FAc of 40% and F2Ac of 22%, respectively. On the contrary, only FAc was produced over Sn-MFI. The variation in selectivity is likely due to different pore geometry of Sn-Beta and Sn-MFI, suggesting that Sn-MFI exhibits a shape selectivity for aldol condensation between furfural and acetone. In addtion, it was found that the adding of water to the reaction system can also affect the product selectivity, leading to the aldol product exclusively to FAc over Sn-Beta.

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Publication details

The article was received on 22 May 2017, accepted on 12 Jul 2017 and first published on 13 Jul 2017


Article type: Paper
DOI: 10.1039/C7CY01028A
Citation: Catal. Sci. Technol., 2017, Accepted Manuscript
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    Production of liquid fuel intermediates from furfural via aldol condensation over Lewis acid zeolite catalysts

    M. Su, W. Li, T. Zhang, H. Xin, S. Li, W. Fan and L. Ma, Catal. Sci. Technol., 2017, Accepted Manuscript , DOI: 10.1039/C7CY01028A

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