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。