High-yield synthesis of alkyl levulinate from furfuryl alcohol and its upgrading to 2-methyl-1,3-dioxolane over AgPW
作者:Xiaoqing Gao、Shanhui Zhu、Hongyan Zheng、Feng Wang、Wanjun Li、Huifang Wang、Yulan Niu
DOI:10.1016/j.mcat.2023.113477
日期:2023.10
relieve greenhouse effect, it is highly urgent to convert carbon-neutral biomass to value-added chemicals and liquid fuels by designing new process. 96.5% yield of biofuel alkyl levulinate was achieved in the alcoholysis of furfuryl alcohol with ethanol over highly active Ag+ exchanged H3PW12O40 (AgPW) catalyst at low temperature. In situ XRD, 31P MAS NMR, XPS and NH3-TPD results confirm that AgPW contains
为了缓解温室效应,迫切需要通过设计新工艺将碳中性生物质转化为高附加值化学品和液体燃料。在高活性Ag +交换H 3 PW 12 O 40 (AgPW)催化剂上低温下醇解糠醇和乙醇时,生物燃料乙酰丙酸烷基酯的收率达到96.5% 。原位XRD、31 P MAS NMR、XPS 和 NH 3-TPD结果证实AgPW含有大量的强酸位点和稳定的Keggin结构,从而具有优异的性能。随后,开发了新工艺,通过 AgPW 上的串联糠醇醇解和缩醛化反应合成生物燃料 2-甲基-1,3-二氧戊环 (MDL),收率约为 70%。此外,MDL 可以通过集成的多步工艺从糠醛、木糖和半纤维素中获得。