Progress in the separation of components and extraction of chemicals from bio-oils

被引：0
作者：
Geng F. [1 ]
Zhang R. [1 ]
Liu H. [1 ]
Meng X. [1 ]
机构：
[1] State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 12期
关键词：
Bio-oil; Biomass; Phenols; Pyrolysis; Separation;
D O I：
10.16085/j.issn.1000-6613.2020-2539
中图分类号：
学科分类号：
摘要：
Fast pyrolysis at high temperature and oxygen-free conditions generates bio-oil rich in high value-added chemicals and fuel components. Effective separation and extraction technologies play a vital role in bio-oil upgrading. In this paper, the properties of bio-oil and fast pyrolysis technologies are introduced, and much more attention are focused on various separation technologies such as distillation, liquid-liquid extraction, column chromatography, supercritical fluid extraction, membrane separation and so on, which are discussed in details. Traditional distillation and liquid-liquid extraction are technically mature and easy to be operated, but there are some problems such as poor thermal sensitivity of bio-oil, low solvent recovery and serious environmental pollution. Molecular distillation is safe and green, but its technical process is complicated and its equipment investment is high. Supercritical extraction and membrane separation are safe, environmentally friendly and technically mature, showing great potential in application. At the same time, research progress on the separation and extraction of multi-chemicals and single-chemical with high additional value is reviewed, which provides theoretical guidance for the effective separation and efficient utilization of bio-oil and points the way for the future development of bio-oil separation. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：6640 / 6655
页数：15
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