Preparation of liquid biofuel 5-ethoxymethylfurfural from fructose catalyzed by modified molecular sieve
Journal Title: Journal of Henan Agricultural University - Year 2023, Vol 57, Issue 5
Abstract
[Objective] The study was conducted to investigate the optimal process conditions for the preparation of high-energy density liquid biofuel 5-ethoxymethylfurfural (EMF) from fructose catalyzed by modified ultrastable Y-type zeolites (USY), and the effect of modified catalyst structure and acidic site changes on the conversion of fructose to EMF was investigated. [Method] In this study, USY was modified by impregnation with ammonium dihydrogen phosphate to catalyze the preparation of EMF from fructose by the one-pot method, and the optimal process conditions for the preparation of EMF from fructose. The effects of structural and acidic site changes on the conversion of fructose to EMF were investigated accordingly were optimized by response surface testing, and the modified catalysts were characterized by GC-MS analysis. [Result] The optimal process conditions for the preparation of EMF from fructose catalyzed by the modified catalyst were 127℃ reaction temperature, 32 min reaction time and 1.35% mass fraction of catalyst dosage, at which the EMF yield reached 74.9%, which was 13.6% higher than that of the unmodified catalyst; the main product obtained from the alcoholysis of fructose catalyzed by modified USY was EMF by GC-MS analysis of the product. [Conclusion] The ammonium dihydrogen phosphate modified USY can successfully catalyze the production of EMF from fructose with fewer by-products and higher yield.
Authors and Affiliations
Haoran ZHAO, Yaxing SONG, Xuanyu LIANG, Zhangbin ZHENG, Guizhuan XU, Hongge TAO, Caihong ZOU
Keywords
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- EP ID EP769255
- DOI 10.16445/j.cnki.1000-2340.20230403.001
- Views 2
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