Ultrasonic Pretreatment for Fast Liquefaction of Bagasse

摘要：

Bagasse was subjected to ultrasonic treatment in several dispersing medium and then liquefied in ethylene carbonate.The morphology and microstructure of bagasse were characterized by SEM and XRD.SEM images showed that the morphology of the bagasse fiber had significant change after the pretreatment;XRD also showed that the crystallinity of the fiber slightly decreased.After ultrasonic pretreatment in ethanol for 2 h,the residue rate of the liquefaction decreased from 5％ to 0.49％.The hydroxyl number of the liquefaction products increased to 390～490 mg/g from their original value of 220～330 mg/g.The relative molecular weight distributions of the liquefaction products of ultrasonic pretreated bagasses,however,did not show evident changes with or without the ultrasonic treatment.

关键词： bagasse liquefaction ultrasonic pretreatment ethylene carbonate

作者: XUEZHONG WU FANGENG CHEN JIAN WU AORIGELE

作者单位: State Key Laboratory of Pulping and Paper Engineering,South China University of Technology,Guangzhou,510640,China

会议类型: 国际会议

会议名称: 第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)

会议地点: 天津

会议语种:英文

页码: 182-185

在线出版日期: 2008-05-14（万方平台首次上网日期，不代表论文的发表时间）