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Chinese Journal of High Pressure Physics  > 2012  >  26(2): 227-234.
REN Tian-Bao, XU Gui-Zhuang, MA Xiao-Qin, YU Zheng-Dao, SONG An-Dong, ZHANG Bai-Liang. Influence of Steam Explosion on Physical-Chemical Characteristic of Corn Stalk[J]. Chinese Journal of High Pressure Physics, 2012, 26(2): 227-234. doi: 10.11858/gywlxb.2012.02.017
Citation: REN Tian-Bao, XU Gui-Zhuang, MA Xiao-Qin, YU Zheng-Dao, SONG An-Dong, ZHANG Bai-Liang. Influence of Steam Explosion on Physical-Chemical Characteristic of Corn Stalk[J]. Chinese Journal of High Pressure Physics, 2012, 26(2): 227-234. doi: 10.11858/gywlxb.2012.02.017
shu

Influence of Steam Explosion on Physical-Chemical Characteristic of Corn Stalk

doi: 10.11858/gywlxb.2012.02.017
  • 1.

    Henan Institute of Science and Technolgy, Xinxiang 453003, China;

  • 2.

    Key Laboratory of Renewable Energy of Ministry of Agriculture, Zhengzhou 450002, China

  • Received Date: 16 Dec 2010
  • Rev Recd Date: 19 Aug 2011
  • Issue Publish Date: 15 Apr 2012
    Abstract
  • In the research fields of lignocellulosic materials, the physical-chemical properties are an important foundation for the resource conversion. Employing thermal gravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy methods, physical-chemical properties changes of steam exploded corn stalk were studied. The results of analysis showed that pyrolysis region of steam exploded corn stalk had a wider temperature range compared with the control substance, during which the maximum self-heating rate increased significantly and activation energies (E) decreased by 16.25%. The characteristic peak absorption intensity was significantly different. The hierarchical structure of the cell wall was completely destroyed, and crystallinity of lignocellulose decreased by 14.57%. Based on this analysis, a mechanism model of steam explosion pretreatment was constructed. The results indicate that physical-chemical properties of corn stalk are significantly affected by steam explosion pretreatment.

     

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