期刊
BIORESOURCE TECHNOLOGY
卷 154, 期 -, 页码 101-108出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.11.091
关键词
Lignin; Pyrolysis oil; Phenols; Switchable solvents; Extraction
资金
- Natural Sciences and Engineering Research Council (NSERC)
- Lignoworks - the NSERC Biomaterials and Chemicals Strategic Network
- FIBRE - Forest Innovation by Research Education
- Lignoworks
Microwave pyrolysis of lignin, an aromatic polymer byproduct from paper-pulping industry, produces char, gases, and lignin pyrolysis oil. Within the oil are valuable phenolic compounds such as phenol, guaiacol and catechol. In this work, we describe a method using switchable hydrophilicity solvents (SHS) to extract phenols as a mixture from lignin microwave-pyrolysis oil at the scale of 10 g of bio-oil. Even at this small scale, losses are small; 96% of the bio-oil was recovered in its three fractions, 72% of guaiacol and 70% of 4-methylguaiacol, the most abundant phenols in the bio-oil, were extracted and 91% of the solvent SHS was recovered after extraction. The starting material (lignin microwave-pyrolysis oil) and the three fractions resulted from SHS extraction were characterized by GC-MS and quantitative C-13{H-1} and P-31{H-1} NMR spectroscopy. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据