Thermal degradation and structural characteristics of corn stover after ferric chloride solution pretreatment

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Abstract

Thermal properties of the corn stover cellulose and these ingredients were examined by thermogravimetric analysis under dynamic conditions from ambient to 800 °C, in order to predict the thermal behaviour of the corn stover cellulose after ferric chloride solution pretreatment. Thermogravimetric analyses were performed at heating rates of 10, 20 and 30 °C/min -1 in nitrogen atmospheres. The parameters of the reaction kinetics were calculated following the Ozawa-Flynn-Wall (OFW) method and compared with untreated corn stover. Using non-isothermal conditions, average value of the reaction activation energy was determined to and 153.77 and 141.88 KJ/mol for the untreated and treated corn stover. Structure of corn stover was heavily damaged by ferric chloride solution pretreatment compared with untreated corn stover, as characterized by X-ray diffraction and scanning electron microscopy. Fourier transform infrared analysis indicated that ferric chloride solution pretreatment could easily remove the hemicelluloses.

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Zeng, G. M., Wang, Y. L., Zhang, M. L., Zheng, Y. X., Xing, J., Ma, Y. F., & Xu, H. J. (2013). Thermal degradation and structural characteristics of corn stover after ferric chloride solution pretreatment. Asian Journal of Chemistry, 25(5), 2431–2434. https://doi.org/10.14233/ajchem.2013.13337b

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