Conversion of Biomass into High-Quality Bio-oils by Degradative Solvent Extraction Combined with Subsequent Pyrolysis
Conversion of Biomass into High-Quality Bio-oils by Degradative Solvent Extraction Combined with Subsequent Pyrolysis
复制标题
通过降解溶剂萃取结合随后的热解将生物质转化为优质生物油
DOI：
10.1021/acs.energyfuels.6b03162
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发表时间：
2017-03
期刊：
影响因子：
5.3
通讯作者：
Yao Hong
中科院分区：
文献类型：
--
作者：
Zhu Xianqing;Tong Shan;Li Xian;Gao Yaxin;Xu Yang;Dacres Omar D.;Ashida Ryuichi;Miura Kouichi;Liu Wenqiang;Yao Hong
化石燃料的快速消耗已经吸引了更多的关注，转向生物质的快速热解以产生生物油。然而，生物油通常含有高的水、氧、酸含量和低热值，这限制了其广泛应用。因此，在这项研究中，提出了一种新的两阶段的方法相结合的降解溶剂萃取和随后的热解，以提高衍生生物油的质量。最初使用降解溶剂提取方法将原始生物质脱水和脱氧以获得低分子量提取物（称为“可溶性”）。然后将可溶物在500 °C下热解以制备生物油。由可溶物制备的生物油的含碳量和热值分别高达90.09%和44.63MJ/kg，是生物质原料的1.5-2.0倍。此外，可溶物生物油的水和氧含量显著低于常规生物油。
The rapid depletion of fossil fuels has attracted more attention being geared toward the fast pyrolysis of biomass to produce bio-oils. However, the produced bio-oils usually contain high water, oxygen, and acid contents and low calorific values, which have limited their wide application. Therefore, in this study, a novel two-stage method combining degradative solvent extraction with subsequent pyrolysis was proposed to improve the quality of derived bio-oils. The raw biomass was initially dewatered and deoxygenated using a degradative solvent extraction method to obtain a low-molecular-weight extract (named “Soluble”). The Solubles were then pyrolyzed at 500 °C to prepare bio-oils. The carbon contents and calorific values of bio-oils produced from the Solubles were as high as 90.09% and 44.63 MJ/kg, respectively, which were 1.5–2.0 times higher than those from the raw biomasses. In addition, the water and oxygen contents of bio-oils from the Solubles were significantly lower than the bio-oils from the ra...
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