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

作者：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^*

来源：Renewable Energy, 2010, 35(5): 946-951.

DOI：10.1016/j.renene.2009.11.037

• Cornstalk
• Supercritical methanol
• Supercritical ethanol
• Depolymerization
• FTIR analysis
• GC/MS analysis

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.

• 出版日期2010-5
• 单位中国矿业大学（北京）; 武汉科技大学; 徐州工程学院