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中国科学院理化技术研究所,北京 100080
Published:2007-06,
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Chao WANG, Jing-xue PAN, Zhan-kui DU, Zheng-yu YANG. Conversion of Rice Straw Rich-in Lignin to Bio-petroleum at Low Temperature. [J]. Polymer Bulletin 20(6):32-37(2007)
DOI:
Chao WANG, Jing-xue PAN, Zhan-kui DU, Zheng-yu YANG. Conversion of Rice Straw Rich-in Lignin to Bio-petroleum at Low Temperature. [J]. Polymer Bulletin 20(6):32-37(2007) DOI: 10.14028/j.cnki.1003-3726.2007.06.005.
在构成秸秆类生物质的三大天然高分子结构中
只有木质素的碳氢氧比(1∶1∙3∶0∙3)与天然石油的碳氢氧的比(1∶1∙6∶0∙05)比较接近。本文通过弱酸酸解和纤维素酶酶解对原稻草样品进行前处理
分别除去了 92∙5%的半纤维素和72%的纤维素
得到富含木质素(36%)的样品
然后在320℃和10MPa 的条件下低温重组制备汽、柴油馏份油
即“生物石油”。与稻草低温重组制备的生物石油相比
长链烷烃的含量(32∙85%)大大提高
而醛酮酸等含氧酸的含量(4∙37%)大幅度降低
使油的组分更加集中于芳香类化合物和长链烷烃
从而有利于生物石油进一步的分离
制备高价值的汽、柴油产品。
Among the three natural macromolecules that constitute the biomass like straws and stalks
only lignin has the mole ratio of C
H
O (1∶1∙3∶0∙3)closed to that of crude petroleum (1∶1∙6∶0∙05).In this paper
rice straw was pretreated by weak acid and cellulase
92∙5% hemicellulose and72% cellulose were removed.And the sample that contained36% lignin was further reformed at low temperature (320℃
10MPa) to obtained gasoline and diesel oil fractions
that is
"bio-petroleum" .Compared with the oil obtained from rice straw
the relative content of long chain hydrocarbons were increased greatly(32∙5%)
while the relative content of the oxygenous compounds were decreased.So
the components of the oil were concentrated on the benzene and phenolic compounds
which was favor for further separation to obtain gasoline and diesel oil products with high value.
天然高分子木质素生物石油长链烷烃
Natural micromoleculeLigninBio-petroleumLong-chain alkane
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