Kinetics of peanut shell pyrolysis and hydrolysis in subcritical water

被引：0
作者：
Guangyong Zhu
Xian Zhu
Zuobing Xiao
Rujun Zhou
Yalun Zhu
Xueliang Wan
机构：
[1] Shanghai Institute of Technology,Department of Chemical Engineering
[2] Shanghai University,School of Bioscience and Bioengineering
[3] South China University of Technology,undefined
来源：
Journal of Material Cycles and Waste Management | 2014年 / 16卷
关键词：
Peanut shell; Kinetics; Hyrolysis; Pyrolysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Biomass is recognized as an important solution to energy and the environmental problems related to fossil fuel usage. The rational utilization of biomass waste is important not only for the prevention of environmental issues, but also for the effective utilization of natural resources. Pyrolysis and hyrolysis in subcritical water are promising processes for biomass waste conversion. This paper deals with hydrolysis and pyrolysis of peanut shells. Hydrolysis and pyrolysis kinetics of peanut shell wastes were investigated for the in-depth exploration of process mechanisms and for the control of the reactions. Hydrolysis kinetics was conducted in a temperature range of 180–240 °C. A simplified kinetic model to describe the hydrolysis of peanut shells was proposed. Hydrolysis activation energy as well as the pre-exponential factor was determined according to the model. The target products of peanut shell hydrolysis, reducing sugars, can reach up to 40.5 % (maximum yield) at 220 °C and 180 s. Pyrolysis characteristics were investigated. The results showed that three stages appeared in this thermal degradation process. Kinetic parameters in terms of apparent pyrolysis activation energy and pre-exponential factor were obtained by the Coats–Redfern method.
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页码：546 / 556
页数：10
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