摘要
以三叉苦药渣木质素为原料,在低共熔溶剂(ChCl-MeOH-AlCl_(3)·6H_(2)O)与催化剂(Cu(OAc)_(2)/邻菲罗啉)耦合作用下解聚生成高密度航油合成原料,考察不同反应温度、时间、固液比、催化剂添加量与氧气含量对木质素催化氧化解聚效果的影响。结果表明:在固液比1∶30 g/mL,木质素、Cu(OAc)_(2)、邻菲罗啉的质量比1∶1∶1,3 MPa氧压,60℃条件下反应3 h后,木质素选择性解聚生了芳香醛酮类高密度航油合成原料,木质素转化率达到80.84%,香草乙酮与香草醛收率分别为16.69%和34.39%。
Herein,Lignin from evodia lepta was used as raw material to depolymerize under the coupling of deep eutectic solvent(ChCl-MeOH-AlCl_(3)·6H_(2)O)and catalyst(Cu(OAc)_(2)/1,10-phenanthroline)to generate feedstock for synthesising high-density jet fuel,and the effects of different reaction temperatures,times,solid-liquid ratios,catalyst additions and oxygen pressures on the catalytic oxidative depolymerization of lignin were investigated.The results showed that under the conditions of solid-liquid ratio of 1∶30 g/mL,mass ratio of lignin to Cu(OAc)_(2) and 1,10-phenanthroline of 1∶1∶1,oxygen pressure of 3 MPa and 60℃for 3 h,the lignin was selectively depolymerized to produce aromatic aldehydes and ketones used as feedstock for synthesizing high-density jet fuel.The lignin conversion rate reached 80.84%,and the yields of acetovanillone and vanillin were 16.69%and 34.39%,respectively.
作者
简雅婷
王帆
陈小燕
张宇
余强
袁振宏
Jian Yating;Wang Fan;Chen Xiaoyan;Zhang Yu;Yu Qiang;Yuan Zhenhong(School of Engineering Science,University of Science and Technology of China,Hefei 230026,China;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,CAS Key Laboratory of Renewable Energy Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,China;South China Agricultural University,Institute of Biomass Engineering,Key Laboratory of Energy Plants Resource and Utilization,Ministry of Agriculture and Rural Affairs,Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass,Guangzhou 510642,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2024年第3期163-168,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51876206,52276192)
广州市重点研发计划(202103000011)。
关键词
生物质
木质素
氧化解聚
低共熔溶剂
biomass
lignin
oxidative depolymerization
deep eutectic solvents
