Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
Sci Rep. 2013;3:1120. doi: 10.1038/srep01120. Epub 2013 Jan 24.
Production of renewable commodity chemicals from bio-oil derived from fast pyrolysis of biomass has received considerable interests, but hindered by the presence of innumerable components in bio-oil. In present work, we proposed and experimentally demonstrated an innovative approach combining atmospheric distillation of bio-oil with co-pyrolysis for mass production of renewable chemicals from biomass, in which no waste was produced. It was estimated that 51.86 wt.% of distillate just containing dozens of separable organic components could be recovered using this approach. Ten protogenetic and three epigenetic compounds in distillate were qualitatively identified by gas chromatography/mass spectrometry and quantified by gas chromatography. Among them, the recovery efficiencies of acetic acid, propanoic acid, and furfural were all higher than 80 wt.%. Formation pathways of the distillate components in this process were explored. This work opens up a fascinating prospect for mass production of chemical feedstock from waste biomass.
从生物质快速热解得到的生物油中生产可再生商品化学品引起了相当大的兴趣，但由于生物油中存在无数的成分，这一过程受到了阻碍。在本工作中，我们提出并实验验证了一种创新的方法，将生物油的常压蒸馏与共热解相结合，从生物质大规模生产可再生化学品，而且没有产生废物。据估计，使用这种方法可以回收含有数十种可分离有机成分的馏分，其重量占比为 51.86wt%。通过气相色谱/质谱联用仪对馏分中的十种原型化合物和三种后生化合物进行了定性分析，并通过气相色谱进行了定量分析。其中，乙酸、丙酸和糠醛的回收率均高于 80wt%。探讨了该过程中馏分成分的形成途径。这项工作为从废生物质大规模生产化学品原料开辟了一个引人入胜的前景。
