| 升温速率对椰壳热解特性的影响及动力学分析 |
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| 引用本文： | 杨坤彬,彭金辉,张利波,郭胜惠,夏洪应.升温速率对椰壳热解特性的影响及动力学分析[J].农业工程学报,2009,25(8):226-230. |
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| 作者姓名： | 杨坤彬 彭金辉 张利波 郭胜惠 夏洪应 |
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| 作者单位： | 昆明理工大学材料与冶金工程学院,昆明,650093;昆明理工大学非常规冶金省部共建教育部重点实验室,昆明,650093 |
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| 基金项目： | 教育部高等学校博士点专项科研基金（20050674009）；云南省教育厅科学研究基金（6y0082D）；昆明理工大学分析测试基金（No.82） |
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| 摘 要： | 利用热重分析仪对椰壳在不同升温速率（5、20、40℃/min）下的热解特性及动力学进行了研究，探讨了热解机理。结果表明：椰壳热解过程主要分为脱水、快速热解和缓慢失重；对比不同升温速率下的失重曲线表明，升温速率对热解失重率有明显影响，其最终热解产物的得率随升温速率的增加而减少。运用氮吸附仪测定其吸附等温线，获得不同热解温度对炭化料的孔结构，结果表明：热解温度越高，微孔越发达。使用TG曲线数据，利用分布活化能模型求出相应的活化能，失重率在0.1～0.8之间时，活化能在146～444 kJ/mol，呈“N”形变化。活化能的分布函数，反映了椰壳热解过程中不同阶段反应性能的变化规律，有助于了解椰壳的热解机理。
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| 关 键 词： | 热解，热重分析，动力学，孔结构，椰壳 |
| 收稿时间： | 2009/2/12 0:00:00 |
| 修稿时间： | 2009/5/25 0:00:00 |
Kinetic analysis and pyrolysis characteristics of coconut shells at different heating rates |
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| Yang Kunbin,Peng Jinhui,Zhang Libo,Guo Shenghui and Xia Hongying.Kinetic analysis and pyrolysis characteristics of coconut shells at different heating rates[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(8):226-230. |
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| Authors: | Yang Kunbin Peng Jinhui Zhang Libo Guo Shenghui and Xia Hongying |
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| Institution: | 1. Faculty of Materials and Metallurgical, Kunming University of Science and Technology, Kunming 650093, China; 2. Key Laboratory of Unconventional Metallurgy (Kunming University of Science and Technology), Ministry of Education, Kunming 650093, China,1. Faculty of Materials and Metallurgical, Kunming University of Science and Technology, Kunming 650093, China; 2. Key Laboratory of Unconventional Metallurgy (Kunming University of Science and Technology), Ministry of Education, Kunming 650093, China,1. Faculty of Materials and Metallurgical, Kunming University of Science and Technology, Kunming 650093, China; 2. Key Laboratory of Unconventional Metallurgy (Kunming University of Science and Technology), Ministry of Education, Kunming 650093, China,1. Faculty of Materials and Metallurgical, Kunming University of Science and Technology, Kunming 650093, China; 2. Key Laboratory of Unconventional Metallurgy (Kunming University of Science and Technology), Ministry of Education, Kunming 650093, China and 1. Faculty of Materials and Metallurgical, Kunming University of Science and Technology, Kunming 650093, China; 2. Key Laboratory of Unconventional Metallurgy (Kunming University of Science and Technology), Ministry of Education, Kunming 650093, China |
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| Abstract: | |
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| Keywords: | pyrolysis thermogravimetric analysis kinetics pore structure coconut shells |
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