利用自行设计研制的小型生物质热裂解反应器,对桉树木屑热解产油的试验条件进行了研究.结果表明,当热裂解温度为500℃,进料速率为300g/h时,生物油的产率达到最大,达40.3%.升温速率的增加,有助于提高生物油的产率.GC-MS分析表明,桉树木屑生物油是一种成分复杂的有机化合物的混合物,含氧量较高.其主要组分为有机酸和酮类.其中乙酸含量占50.6%,羟基丙酮占10.9%.生物油经过精制加工得到高品质的生物燃油后,结合生物质热解气、生物质炭的利用,可实现生物质综合能源化利用.%The biomass pyrolysis of eucalypt sawdust was studied using a self-made bench-scale pyrolysis reactor. The results showed that the maximum bio-oil yield ratio was 40 wt% at a pyrolysis temperature of 500 ℃ and a feed rate of 300 g/h. High heating of raw materials make biomass particle pass charring zone at lower temperature more quickly to reduce char production,while improve bio-oil production. The eucalypt sawdust bio-oil analyzed by GC-MS was a mixture of complex organic compounds with extensive existence of oxygen. The bio-oil mainly contained organic acids and ketone. The content of acetic acid and hydroxyacetone were 50. 6% ,10. 9% .respectively. Bio-oil could be refined to gain high quality bio-oil. Upgrading of bio-oil and combined with the utilization of gas and char. Biomass can be comprehensively utilized as a clean energy source.
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