Conversion of Biomass into Levulinate Esters as Novel Energy Chemicals
- 能源院－已发表论文 
Biomass is the only renewable resources on the earth that can derive liquid fuel and fine chemicals to replace the petroleum-based chemicals. In recent years, the development of bioenergy concerning the synthesis of levulinate esters from biomass via chemical/catalytic process has attracted more and more concerns, and extensive research is being carried out worldwide. Levulinate esters, like methyl levulinate, ethyl levulinate, and butyl levulinate, are a kind of important intermediates and energy chemicals having high reactivity and widespread application in many fields. Up to now, there are four developed potential pathways for the synthesis of levulinate esters from biomass conversion, including the direct acid-catalyzed alcoholysis of biomass, the esterification of levulinic acid that from hydrolysis of biomass, the alcoholysis of 5-(chloromethyl) furfural derived from biomass, and the alcoholysis of furfuryl alcohol that from hydrogenation of furfural. In this review, the chemical reaction process and recent research progress for the above four pathways are introduced. The characteristic and development tendency of these pathways are reviewed from the production process, catalytic system and economic feasibility. Based on the present research situation, the technology and engineering barriers for the conversion of biomass to levulinate esters in commercial scales are analyzed and discussed, and the future research trend in the field is prospected.
出处PROGRESS IN CHEMISTRY,2012,24（5）：801-809