林产化学与工业2017，Vol.37Issue(2)：42-48,7.DOI:10.3969/j.issn.0253-2417-2017-02-005
桉木屑在离子液体[C4H8SO3Hmim]HSO4催化下液化行为研究
Liquefaction of Eucalyptus Sawdust Catalyzed by [C4H8SO3Hmim]HSO4
吴鸿楼 1谌凡更 1王静2
作者信息
- 1. 华南理工大学 制浆造纸工程国家重点实验室,广东 广州 510640
- 2. 华南理工大学 亚热带建筑科学国家重点实验室,广东 广州 510640
- 折叠
摘要
Abstract
Eucalyptus sawdust was liquefied in ethylene glycol under atmospheric pressure using 1-(4-sulfobutyl)-3-methylimidazolium hydrosulfate([C4H8SO3Hmim]HSO4) as catalyst.The effects of the reaction time, temperature and dosage of catalyst on the liquefaction yield and the distribution of liquefaction products were studied.The results showed that the optimal conditions of liquefaction were: 10g eucalyptus sawdust, 60g ethylene glycol, 10 mmol [C4H8SO3Hmim]HSO4, 160 ℃ and 150 min.The liquefaction yield was up to 96.41% under the optimal conditions.The Fourier transform-infrared (FT-IR) spectra, thermal gravimetric and the X-ray diffraction analysis of the residual showed that the major component in the residue was cellulose with high crystallinity.The FT-IR analysis of water-insoluble products showed that water-insoluble products mainly included degradation products from lignin.The GC-MS analysis showed the water-soluble products mainly included levulinic acid and methyl levulinate which was originated from cellulose.关键词
离子液体/桉木屑/液化/残渣/可溶物Key words
ionic liquid/eucalyptus sawdust/liquefaction/residue/soluble fraction分类
化学化工引用本文复制引用
吴鸿楼,谌凡更,王静..桉木屑在离子液体[C4H8SO3Hmim]HSO4催化下液化行为研究[J].林产化学与工业,2017,37(2):42-48,7.
