生物油热解木质素的分离与利用研究进展

Research Progress in the Separation and Application of the Pyrolytic Lignin in Bio-oil

热解木质素是生物油中由酚类等高值化学品组成的低聚物,热解木质素能量密度高、具有酚羟基、甲氧基等活性基团,可用于制备液体燃料、化工产品等,实现其高效分离和分级转化是高附加值利用的重要途径之一。笔者系统总结了近年来有关热解木质素的研究现状和技术进展,重点阐释了有关热解木质素分离与解聚的研究概况,并对今后的研究方向进行了探讨。

Pyrolytic lignin is made up of the oligomers of bio-oil, which is rich in high-value chemicals, such as phenolic. It can be wildly used in many areas such as liquid fuel and chemical products with high energy density and phenolic hydroxyl groups and methoxy groups of high activity. Its effective separation and conversion is an important way to achieve high value-added utilization of bio-oil. Research progress on pyrolytic lignin is summarized in the present paper. The research status of separation and depolymerization of pyrolytic lignin are highlighted, and the future research directions are discussed.