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Microwave-assisted and conventional hydrothermal carbonization of lignocellulosic waste material: Comparison of the chemical and structural properties of the hydrochars

机译:木质纤维素废料的微波辅助和常规水热碳化:水炭的化学和结构性质比较

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This study compares the chemical and structural properties of the hydrochars prepared from microwave-assisted and conventional hydrothermal carbonizations of Prosopis africana shell, a waste plant material. The preparation involved heating the raw material in de-ionized water at 200 degrees C for 5-20 min, and 120-240 min in the microwave and conventional oven respectively. The prepared hydrochars were characterized using the scanning electron microscope, nitrogen sorption measurement, Fourier transform infrared spectroscopy, CHN analyzer, thermogravimetric analysis, and nuclear magnetic resonance. The results showed that the microwave-assisted hydrothermal carbonization process is fast in the carbonization of the Prosopis africana shell as shown by the level of conversion attained within the short time. This study presents new data on the comparison of the hydrochars from microwave-assisted and conventional hydrothermal carbonization processes of the same lignocellulosic material in terms of their properties. (C) 2015 Elsevier B.V. All rights reserved.
机译:这项研究比较了用废弃植物材料非洲象鼻壳的微波辅助和常规水热碳化制备的炭的化学和结构性质。制备包括分别在微波和常规烤箱中于200℃在去离子水中加热原料5-20分钟和120-240分钟。使用扫描电子显微镜,氮吸附测量,傅立叶变换红外光谱,CHN分析仪,热重分析和核磁共振对制备的烃进行表征。结果表明,如在短时间内达到的转化水平所表明的那样,微波辅助的水热碳化过程在非洲拟人象壳的碳化中是快速的。这项研究提供了新的数据,该数据比较了相同木质纤维素材料的微波辅助和常规水热碳化过程中的碳氢化合物的性质。 (C)2015 Elsevier B.V.保留所有权利。

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