Directional conversion of lignocellulosic biomass to methyl levulinate over supported metal solid acid
Lignocellulosic biomass is an abundant and green resources.Preparation of high added-value liquid fuels and chemicals from lignocellulosic biomass can alleviate society's demand for fossil fuels and improve the ecological environment,and thus contribute to the"dual-carbon"objective.In this study,a variety of metal-supported solid acid catalysts were prepared for conversion of biomass carbohydrates to methyl levulinate.The prepared catalysts were characterized and were found to possess bifunctional properties(B-and L-acid active centers).The catalyst with AlCl3 loaded on surface to provide L-acid showed the best catalytic performance.The effects of different factors such as reaction temperature and time on the simultaneous directional conversion of glucose and xylose to methyl levulinate were investigated in detail.A raw material conversion of 100%and levulinic acid/ester yield of 24.96%could be obtained with the co-solvent of dimethoxy-methane/methanol(1∶1 mass ratio)at 200℃for 2h.
国家科技期刊平台
NSTL
万方数据
