期刊
FUEL
卷 210, 期 -, 页码 67-74出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2017.08.035
关键词
Lignocellulosic biomass; Heterogeneous catalysis; Sugarcane; Optimization process; CCD design
资金
- Companhia Brasileira de Metalurgia e Mineracao - Brazil (CBMM)
- FAPEMIG - Brazil [REDE-113/10, CEX-RED-00010-14]
The aim of this work was to optimize the acid-catalyzed conversion of glucose into 5-hydroxymethylfurfural (HMF) in an aqueous medium using niobic acid (NbO), niobium phosphate (NbP) and a mixture of both solid acid catalysts. A simplex-centroid mixture design was applied to optimize the mixture ratio between NbO and NbP. A central composite design was applied to process optimization. The studied variables were temperature (T), time (t) and substrate to catalyst weight ratio (R-S/C). The mixture design revealed excellent glucose conversion (55%) and HMF selectivity (56%) when the weight ratio between NbO and NbP was equal to 1:1. The experimental results demonstrate that a mixture of both solid acids provides a better combination of Bronsted and Lewis acidity for effective glucose dehydration into HMF than each individual catalyst.
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