可再生能源2017，Vol.35Issue(4)：495-501,7.
离子液体预处理对甘蔗渣快速热解产物的影响
The influence of ionic liquids pretreatment on production by fast pyrolysis from sugarcane bagasse
摘要
Abstract
Sugarcane bagasse was pretreated by ionic liquids (ILs) 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) and 1-butyl-3-methylimidazolium chloride ([BMIM]Cl).Water washed sugarcane bagasse was used as a control.The samples were characterized by SEM,BET,XRD and TG-DTG,and then subjected to fast pyrolysis by using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS).The effects of ILs pretreatment on product distribution,especially levoglucosan,furans and acetic acid,by fast pyrolysis from sugarcane bagasse were studied.After pretreated by [AMIM]Cl at 140 ℃,the crystallinity of sugarcane bagasse was decreased from 50.7％ to 36.5％,the surface area was increased from 2.0 m2/g to 4.0 m2/g,and thermal stability was enhanced.Meanwhile,most of alkali and alkaline earth metals (87.5％) were removed from sugarcane bagass after IL pretreatment.The demineralization by ILs pretreatment effectively improved the yield of levoglucosan.Levoglucosan yield from IL pretreated sugarcane bagasse achieved 38.0％ as compared with 10.5％ for raw material after fast pyrolysis.The yield of acetic acid was decreased from 5.7％ to 2.5％,while the yield of furfural changed slightly.关键词
甘蔗渣/离子液体/预处理/快速热解Key words
sugarcane bagasse/ionic liquids/pretreatment/fast pyrolysis分类
能源科技引用本文复制引用
吴南南,蒋丽群,郑安庆,刘安琪,赵增立,何方,李海滨..离子液体预处理对甘蔗渣快速热解产物的影响[J].可再生能源,2017,35(4):495-501,7.基金项目
广东省自然科学基金(2014A030310322) （2014A030310322）
广东省新能源和可再生能源研究开发与应用重点实验室(Y609jf1001) （Y609jf1001）
国家自然科学基金(51606204,51376186). （51606204,51376186）
