Effects of pyrolysis temperature and heating time on biochar obtained from the pyrolysis of straw and lignosulfonate
文献类型： 外文期刊
作者： Zhang, Jie 1 ; Liu, Jia 2 ; Liu, Rongle 1 ;
作者机构： 1.Chinese Acad Agr Sci, Grad Sch, Beijing 100081, Peoples R China
2.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang, Peoples R China
关键词： Straw;Lignosulfonate;Biochar;Pyrolysis temperature;Heating time
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）
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收录情况： SCI
摘要： In this study, the effects of pyrolysis temperature and heating time on the yield and physicochemical and morphological properties of biochar obtained from straw and lignosulfonate were investigated. As pyrolysis temperature increased, pH, ash content, carbon stability, and total content of carbon increased while biochar yield, volatile matter, total content of hydrogen, oxygen, nitrogen and sulfur decreased. The data from scanning electron microscope image and nuclear magnetic resonance spectra indicated an increase in porosity and aromaticity of biochar produced at a high temperature. The results showed that feedstock types could also influence characteristics of the biochar with absence of significant effect on properties of biochar for heating time. (C) 2014 Elsevier Ltd. All rights reserved.
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