摘要
木质素是由三种苯基丙烷单元通过醚键和C-C键相互偶联形成的复杂高分子聚合物,并且与碳水化合物交联形成复杂的结构,其在自然界中的储量仅次于纤维素,传统木质素利用方式效率低,资源浪费严重。热解是一种重要的木质素高效转化利用技术,木质素复杂的结构特性会显著影响其热解过程和产物分布。本文综述了木质素结构和热解机理,概述了不同原料和不同提取方式木质素的热解特性,最后对木质素热解转化进行了展望,为木质素的资源化利用提供理论基础。
Lignin is a complex polymer formed by coupling three phenyl propane units through ether and C-C bonds,and cross-linked with carbohydrates.It is the second abundant biomass component only to cellulose.Traditional utilization methods are inefficient that cause a considerable waste of resources.Pyrolysis is an important technology for efficient conversion and utilization of lignin.The complex structures of lignin will affect the pyrolysis process and product distribution significantly.In this paper,the structure and pyrolysis mechanism of lignin were reviewed,the pyrolysis characteristics of lignin from different raw materials and different extraction methods were summarized,and the related research and application trend were prospected,hence to provide a theoretical basis for the utilization of lignin.
作者
王则祥
李航
谢文銮
胡斌
李凯
陆强
WANG Ze-xiang;LI Hang;XIE Wen-luan;HU Bin;LI Kai;LU Qiang(National Engineering Laboratory for Biomass Power Generation Equipment,North China Electric Power University,Beijing 102206,China)
出处
《新能源进展》
2020年第1期6-14,共9页
Advances in New and Renewable Energy
基金
国家自然科学基金项目(51922040,51906060)
霍英东教育基金会项目(161051)
关键词
木质素
生物质
提取
快速热解
结构
lignin
biomass
extraction
fast pyrolysis
structure
