木质生物质的超声波-微波液化机理  

Ultrasonic-Microwave Liquefaction Mechanism of Woody Biomass

作　　者：赵宇 闫璟玮 李可莹 朱亨基 范立维[2] 卢泽湘[1] Zhao Yu;Yan Jingwei;Li Keying;Zhu Hengji;Fan Liwei;Lu Zexiang(College of Material Engineering Fujian Agriculture and Forestry University,Fuzhou 350002;College of Resource and Environment Fujian Agriculture and Forestry University,Fuzhou 350002,China)

机构地区：[1]福建农林大学材料工程学院,福建福州350002 [2]福建农林大学资源与环境学院,福建福州350002

出　　处：《广东化工》2021年第7期5-6,14,共3页Guangdong Chemical Industry

基　　金：国家自然科学基金青年基金项目(41907112);福建省自然科学基金面上项目(2017J01569)。

摘　　要：以微晶纤维素、木聚糖和碱木质素为木质生物质组分模型,γ-戊内酯/正辛醇和浓硫酸分别为溶剂和催化剂,考察了木质生物质的超声波-微波液化机理。结果表明:纤维素和半纤维素发生开环、脱羧、酯化等反应后,生成醇、呋喃和有机酸等;木质素经历解构、酯化和裂解重聚后形成酯、羧醛和芳香族等物质。The ultrasonic-microwave liquefaction mechanism of woody biomass was investigated in γ-valerolactone/1-octanol solvent and sulfuric acid catalyst using microcrystalline cellulose, xylan and alkali lignin as the modelling components of woody biomass. The results show that alcohols, furans and organic acids are formed after cellulose and hemicellulose take place these reactions such as ring-opening, decarboxylation and esterification;lignin undergoes deconstruction,esterification and cracking and repolymerization to form some products such as esters, carboxylic aldehydes and aromatics.

关 键 词：生物质 液化 机理 

分 类 号：TQ35[化学工程]