生物质平台分子γ-戊内酯的研究进展

Recent Progress in the Studies of Biomass Platform Molecule γ-Velerolactone

生物质是自然界存量丰富的可再生资源.随着化石资源的日渐枯竭,由生物质制备燃料和化学品引起人们关注.把生物质转化为燃料和化学品通常经过生物质平台分子步骤.在众多生物质平台分子中,γ-戊内酯(GVL)具有广泛的用途,有关γ-戊内酯的合成和转化的研究成为一个热点课题.由木质纤维素制备GVL已经开发出多种催化体系,将GVL转化为燃料、化学品以及高分子材料也有大量文献报道.着重从不同的原料、催化体系归纳GVL的合成路线和方法,为探索高效、经济、绿色、可持续的GVL合成途径提供思路,并对GVL的高效转化的研究加以总结,为发展新的转化技术,拓展应用范围提供参考.

Lignocellulosic biomass is an abundant and renewable resource of carbon that allows the production of versatile and viable chemicals and fuels. Various processes have been developed for the conversion of biomass and its derivatives into platform molecules. Among these molecules, γ-valerolactone（GVL） is widely used because of its high stability, low toxicity and low volatility. GVL is an ideal precursor for the production of fuels and value-added chemicals. Up to now, various catalysts and reaction systems have been developed for the production of GVL from biomass, and many processes for the conversion GVL into fuels and chemicals have also been reported. In this paper, the different feedstocks including levulinic acid（LA）, levulinate esters and other compounds for the production of GVL, as well as the catalytic systems including homogeneous and heterogeneous catalysts for the hydrogenation of LA to GVL using H2 gas or formic acid（FA） as hydrogen source are summarized. The conversion of GVL into fuels, chemicals and polymers is reviewed.