可再生能源2025，Vol.43Issue(5)：569-576,8.
桉树木屑催化热解制取甲氧基芳香化合物
Catalytic pyrolysis of eucalyptus sawdust for production of methoxy-aromatic compounds
摘要
Abstract
The effects of reaction temperature and alkaline catalyst on the yield of pyrolysis products and the selectivity of methoxy-aromatic compounds were studied during microwave-assisted pyrolysis of eucalyptus sawdust in a fixed-bed reactor.The results showed that 400℃was the optimum temperature for methoxy-aromatic compounds production,where the yield of bio-oil was 28.4％,and the concentration of methoxy-aromatic compounds in the bio-oil reached to 70.4％.The dominant methoxy-aromatic compounds were identified as guaiacyl and syringyl derivatives.Weakly alkaline catalysts(K2CO3 and Na2CO3)enhanced both bio-oil yield and the methoxy-aromatic compounds selectivity.However,the strong base NaOH reduces methoxy-aromatic compounds content.The catalytic efficiency for methoxy-aromatic compounds selectivity followed the order:Na2CO3>K2CO3>NaHCO3>NaOH.Furthermore,the reaction mechanisms underlying the formation of MACs from woody biomass and their subsequent conversion into benzoquinone,phenol,and catechol were elucidated,with guaiacol serving as a key structural model.关键词
催化热解/甲氧基芳香化合物/微波辅助热解/木质类生物质/反应机制Key words
catalytic pyrolysis/methoxy-aromatics compounds/microwave-assisted pyrolysis/woody biomass/reaction mechanism分类
能源与动力引用本文复制引用
徐静,安杨,余江龙,窦金孝..桉树木屑催化热解制取甲氧基芳香化合物[J].可再生能源,2025,43(5):569-576,8.基金项目
国家自然科学基金项目(22078141,22378180) （22078141,22378180）
辽宁省"揭榜挂帅"重点项目(2022JH1/10800065). （2022JH1/10800065）
