Separation and Enrichment of Catechol and Sugars from Bio-oil Aqueous Phase

被引：0

作者：

Wang S. ^{[1
]}

Wang Y. ^{[1
]}

Leng F. ^{[1
]}

Chen J. ^{[1
]}

Qiu K. ^{[1
]}

Zhou J. ^{[1
]}

机构：

[1] State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou

来源：

Qiu, Kunzan (qiukz@zju.edu.cn) | 1707年 / North Carolina State University卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Bio-oil aqueous phase; Catechol; Column chromatography; Separation; Sugars;

D O I：

10.15376/BIORES.11.1.1707-1720

中图分类号：

学科分类号：

摘要：

Aiming at obtaining greater value from the complicated composition of the bio-oil aqueous phase, solvents of increasing polarity were employed to sequentially separate the bio-oil aqueous phase using column chromatography. This not only relieved the catalyst deactivation, but also made it possible to obtain fractions rich in different chemical families to produce high-grade liquid fuels and valuable chemicals. Gas chromatography was adopted as a monitoring technology, and 11 fractions rich in different chemical families were obtained. The phenolic compounds in the aqueous phase were primarily eluted using dichloromethane. The strong polar benzenediols were enriched gradually in a dichloromethane fraction, and a high catechol content of 62.81% was achieved with the subsequent combination of a pH control method. Ethyl acetate gave three fractions, and pyrolytic sugars were the predominant compounds, whose highest content reached 67.86% in the third fraction. Further separation of the sugar-rich fraction using column chromatography could remove the residual phenolic compounds and furans and acquire a sugar fraction suitable for fermentation. © 2016. All Rights Reserved.

引用

页码：1707 / 1720

页数：13

共 35 条

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