生物油性质及分离纯化的研究进展

Advance on Properties,Separation and Purification of Bio-oil

生物质通过热化学转化可获得一种多相复杂的液体产品——生物油,其中包括了数百种有机化合物和功能化学品。本文以生物质热化学转化生物油的理化性质为基础,针对国内外生物油分离纯化技术的研究现状进行系统评述,主要侧重于蒸馏、溶剂分离、超临界CO2萃取技术以及色谱分离等相关技术,同时指出柱层析和溶剂分离技术相结合可以对生物油中的复杂成分进行有效的分离,并能得到高纯度的化学品,其在生物油的分离方面具有较好的发展前景。

A multiphase complex liquid product namely bio-oil, which includes hundreds of organic compounds and functional chemicals, can be obtained from biomass via thermo chemical conversion.Recent developments in the field of the current status of bio-oil separation and purification technology with particular attention focused on distillation, solvent separation, supercritical extraction and chromatography according with the physical and chemical properties of bio-oil were reviewed.In addition, the column chromatography and solvent extraction technology can complement one another for effective separation the complex composition of bio-oil, and can get high purity chemicals.An assessment was made of the challenges and opportunities of bio-oil separation and purification technology in light of mitigating technical, environmental, and logistical issues.