化工进展2024，Vol.43Issue(6)：3042-3050,9.DOI:10.16085/j.issn.1000-6613.2023-0836
负载金属型固体酸催化木质纤维生物质定向转化为乙酰丙酸甲酯
Directional conversion of lignocellulosic biomass to methyl levulinate over supported metal solid acid
摘要
Abstract
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.关键词
木质纤维生物质/催化剂/复合溶剂/生物燃料/酯化Key words
lignocellulosic biomass/catalyst/compounded solvent/biofuel/esterification分类
化学化工引用本文复制引用
何世坤,张文豪,冯君锋,潘晖..负载金属型固体酸催化木质纤维生物质定向转化为乙酰丙酸甲酯[J].化工进展,2024,43(6):3042-3050,9.基金项目
国家自然科学基金(32101469) （32101469）
广西林产化学与工程重点实验室(国家民委重点实验室)开放基金课题(GXFK2204). （国家民委重点实验室）
