期刊
CERAMICS INTERNATIONAL
卷 46, 期 15, 页码 24045-24052出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.06.182
关键词
Fructose; Methyl lactate; Nb/HUSY; Heterogeneous catalysis; Lewis acid
资金
- Research Foundation for Advanced Talents of East China University of Technology [DHBK2019125]
One-pot conversion of biomass-based carbohydrates to methyl lactate (MLA), a versatile platform chemical for the production of food additives as well as the starting material of pharmaceutical industry, is an attractive green process. In this study, the Nb/HUSY catalysts with highly catalytic performance are successfully synthesized and used for the production of MLA from fructose. Remarkably, when using 2%Nb/HUSY as catalyst, the highest MLA yield of 56.1% is obtained with complete conversion of fructose under optimal conditions (140 degrees C for 6 h). The introduction of niobium into HUSY enhances the Lewis acid properties, which facilitates the stepwise process, involving the retro-aldol condensation and dehydration reactions. The as-prepared catalysts have shown promising potential for conversion of fructose to MLA and effectively inhibited the formation of by-products. More importantly, the catalyst exhibits superior stability and could be reused for at least four cycles.
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