| 核桃壳热解行为及动力学研究 |
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| 引用本文： | 郑志锋,黄元波,蒋剑春,杨晓琴,周玲. 核桃壳热解行为及动力学研究[J]. 林产化学与工业, 2010, 30(2): 6-10 |
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| 作者姓名： | 郑志锋 黄元波 蒋剑春 杨晓琴 周玲 |
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| 作者单位： | 1. 西南林学院西南山地森林资源保育与利用省部共建教育部重点实验室,木质科学与装饰工程学院,云南昆明650224
2. 中国林业科学研究院,林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,江苏南京210042 |
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| 基金项目： | 国家自然科学基金，"十一五"国家科技支撑计划资助，教育部科学技术研究重点项目，中国博士后科学基金 |
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| 摘 要： | 利用热重分析在不同升温速率(5～50 K/min)和氮气气氛下对核桃壳的热解失重行为进行了研究。实验结果表明,核桃壳的热解过程可分为失水干燥、预热解、快速热解和残余物缓慢分解等4个阶段;快速热解阶段和残余物缓慢分解阶段的失重率分别为55%和32%左右,它们均可由一级反应过程描述,根据一级反应由Coats-Redfern方法计算核桃壳快速热解阶段和残余物缓慢分解阶段的平均活化能分别为50.7和17.3 kJ/mol。实验结果还表明加热速率越大,热解速率越快。
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| 关 键 词： | 核桃壳 热解 热重分析 动力学 |
Study on Pyrolysis Characteristics and Kinetics of Walnut Shell |
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| ZHENG Zhi-feng,HUANG Yuan-bo,JIANG Jian-chun,YANG Xiao-qin,ZHOU Ling. Study on Pyrolysis Characteristics and Kinetics of Walnut Shell[J]. Chemistry & Industry of Forest Products, 2010, 30(2): 6-10 |
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| Authors: | ZHENG Zhi-feng HUANG Yuan-bo JIANG Jian-chun YANG Xiao-qin ZHOU Ling |
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| Affiliation: | ZHENG Zhi-feng1,HUANG Yuan-bo1,JIANG Jian-chun2,YANG Xiao-qin1,ZHOU Ling1(1.Key Laboratory of Forest Resources Conservation and Use in the Southwest Mountains of China(SWFU),Ministry of Education,Faculty of Wood Science and Technology,Southwest Forestry University,Kunming 650224,China,2.Institute of ChemicalIndustry of Forest Products,CAF,National Engineering Lab.for Biomass Chemical Utilization,Key and Open Lab.onForest Chemical Engineering,SFA,Key Lab.of Biomass Energy and Material,Jiangsu Province,Nanjin... |
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| Abstract: | The pyrolysis characteristics of walnut shell at different heating rates(5-50K/min) under the stream of N2 were studied using thermogravimetric analysis.The result showed that the pyrolysis process of walnut shell included four stages,namely drying,pre-pyrolysis,fast-pyrolysis and slow decomposition of residue.The weight loss during the fast-pyrolysis stage and the slow decomposition stage of residue was about 55% and 32%,respectively.The pyrolysis process could be described by the first-order global model ... |
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| Keywords: | walnut shell pyrolysis thermogravimetric analysis kinetics |
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