Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 离子液体预处理对甘蔗渣快速热解产物的影响 | |
| Alternative Title | The influence of ionic liquids pretreatment on production by fast pyrolysis from sugarcane bagasse |
吴南南1,2; 蒋丽群1; 郑安庆1 ; 刘安琪1; 赵增立1; 何方1; 李海滨1
| |
| 2017-04 | |
| Source Publication | 可再生能源
 |
| ISSN | 1671-5292 |
| Volume | 35Issue:4Pages:495-501 |
| Abstract | 采用1-烯丙基-3-甲基咪唑氯盐([AMIM]Cl)和1-丁基-3-甲基咪唑氯盐([BMIM]Cl)两种离子液体进行甘蔗渣预处理研究,以水洗预处理甘蔗渣作为对比试验。使用SEM,BET,XRD和TG-DTG对预处理前后样品进行表征,并利用Py-GC/MS装置对样品进行快速热解,重点考察了产物中左旋葡聚糖、呋喃类及乙酸的含量变化。结果表明,采用离子液体[AMIM]Cl在140℃下预处理甘蔗渣效果较好,此时甘蔗渣的结晶度由50.7%降低为36.5%,而比表面积则从2.0 m2/g增加至4.0 m2/g,同时甘蔗渣的热稳定性提高。在该条件下预处理能够脱除甘蔗渣中87.5%的碱金属和碱土金属,有效促进了甘蔗渣快速热解转化为左旋葡聚糖。热解产物中左旋葡聚糖含量从未处理的10.5%提高至38.0%,乙酸含量由5.7%降低为2.5%,而呋喃类产物的变化较小。 |
| Other 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% to36.5%, 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% to2.5%, while the yield of furfural changed slightly. |
| Keyword | 甘蔗渣 离子液体 预处理 快速热解 sugarcane bagasse ionic liquids pretreatment fast pyrolysis |
| DOI | 10.13941/j.cnki.21-1469/tk.2017.04.004 |
| Language | 中文 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/16617 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | 蒋丽群 |
| Affiliation | 1.中国科学院广州能源研究所，中国科学院可再生能源重点实验室，广东省新能源和可再生能源研究开发与应用重点实验室，广东广州510640; 2.中国科学院大学，北京100049 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 吴南南,蒋丽群,郑安庆,等. 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. |
| APA | 吴南南.,蒋丽群.,郑安庆.,刘安琪.,赵增立.,...&李海滨.(2017).离子液体预处理对甘蔗渣快速热解产物的影响.可再生能源,35(4),495-501. |
| MLA | 吴南南,et al."离子液体预处理对甘蔗渣快速热解产物的影响".可再生能源 35.4(2017):495-501. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 离子液体预处理对甘蔗渣快速热解产物的影响（572KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment