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Molecular composition of soluble fraction from depolymerized cornstalk powder in supercritical methanol and ethanol

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  • Tang, Shi-Rong
  • Zong, Zhi-Min
  • Zhou, Lei
  • Zhao, Wei
  • Li, Xiao-Bo
  • Peng, Yao-Li
  • Xie, Rui-Lun
  • Chen, Xiao-Fei
  • Gu, Wen-Tao
  • Wei, Xian-Yong

Abstract

Cornstalk was depolymerized in supercritical methanol and ethanol, respectively. The depolymerization products were analyzed with FTIR and GC/MS. The results show that the products can be classified into methyl esters and dimethyl diesters, ethyl esters and diethyl phthalate, hydroxybenzenes and dihydroxybenzenes, ketones, methoxybenzene to trimethyoxybenzenes, hydrocarbons, nitrogen-containing organic compounds and other compounds. Most of the products are oxygen-containing species. Palmitate and octadec-9-enoate are the two most abundant products both with supercritical methanol and with supercritical ethanol. The fact that the cornstalk depolymerization in different solvents afforded many different products suggests that the two solvents played different roles in the cornstalk depolymerization.

Suggested Citation

  • Tang, Shi-Rong & Zong, Zhi-Min & Zhou, Lei & Zhao, Wei & Li, Xiao-Bo & Peng, Yao-Li & Xie, Rui-Lun & Chen, Xiao-Fei & Gu, Wen-Tao & Wei, Xian-Yong, 2010. "Molecular composition of soluble fraction from depolymerized cornstalk powder in supercritical methanol and ethanol," Renewable Energy, Elsevier, vol. 35(5), pages 946-951.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:5:p:946-951
    DOI: 10.1016/j.renene.2009.11.037
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    References listed on IDEAS

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    1. Qian, Yejian & Zuo, Chengji & Tan, Jian & He, Jianhui, 2007. "Structural analysis of bio-oils from sub-and supercritical water liquefaction of woody biomass," Energy, Elsevier, vol. 32(3), pages 196-202.
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    1. Chen, Bo & Wei, Xian-Yong & Zong, Zhi-Min & Yang, Zhu-Sheng & Qing, Yu & Liu, Chang, 2011. "Difference in chemical composition of supercritical methanolysis products between two lignites," Applied Energy, Elsevier, vol. 88(12), pages 4570-4576.
    2. Zhang, Pengchao & Hu, Hongyun & Tang, Hua & Yang, Yuhan & Liu, Huan & Lu, Qiang & Li, Xian & Worasuwannarak, Nakorn & Yao, Hong, 2019. "In-depth experimental study of pyrolysis characteristics of raw and cooking treated shrimp shell samples," Renewable Energy, Elsevier, vol. 139(C), pages 730-738.
    3. Li, Wei-Gang & Zhao, Wei & Liu, Hao-Miao & Ao, Lei & Liu, Kai-Shuai & Guan, Yin-Shuang & Zai, Shi-Feng & Chen, Shang-Long & Zong, Zhi-Min & Wei, Xian-Yong, 2018. "Supercritical ethanolysis of wheat stalk over calcium oxide," Renewable Energy, Elsevier, vol. 120(C), pages 300-305.

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