流化床生物质快速热解气组成及冷凝技术的研究进展

Research Progress on Composition of Fluidized Bed Biomass Fast Pyrolysis Gas and its Condensation Technologies

流化床生物质快速热解是最具有发展潜力的生物质能源转化技术之一,可将低品位的生物质转换为高品质、易运输的热解油产物,以制取燃料或化工产品。快速热解气的冷凝环节是该技术的重要步骤之一,对应的冷凝技术备受学者关注。在介绍了热解气组成成分的基础上,着重探析了其冷凝过程的传热机理,归纳了三类典型的冷凝方式,指出了生物质快速热解气冷凝技术的发展方向。

Fluidized bed biomass fast pyrolysis is one of the most potential biomass energy conversion technologies. It can convert low-grade biomass into high quality pyrolysis oil to produce fuel or chemical products. Condensation of fast pyrolysis gas is one of the important steps of this technology,and the corresponding condensing equipment and technologies are concerned by the scholars. This paper introduced the components of pyrolysis gas,discussed and analyzed the mechanism and technological process of heat transfer,and meanwhile,3 typical cooling and condensing modes were summarized,and the direction of the rapid pyrolysis gas condensing technologies was indicated.