| 油茶壳热解的TG-FT-IR分析及动力学研究 |
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| 引用本文： | 顾洁,刘斌,张齐生,周建斌. 油茶壳热解的TG-FT-IR分析及动力学研究[J]. 生物质化学工程, 2015, 49(4): 7-13. DOI: 10.3969/j.issn.1673-5854.2015.04.002 |
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| 作者姓名： | 顾洁 刘斌 张齐生 周建斌 |
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| 作者单位： | 1. 南京林业大学 材料科学与工程学院, 江苏 南京 210037;2. 南京林业大学 化学工程学院, 江苏 南京 210037 |
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| 基金项目： | 林业公益性行业科研专项项目(201304611);林业科学技术推广([2014]40);江苏高校优势学科建设工程资助项目(PAPD) |
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| 摘 要： | 采用热重红外联用(TG-FT-IR)技术考察了油茶壳的热解规律,并选择2种无机制函数积分法Kissinger-Akahira-Sunose(KAS)法和Flynn-Wall-Ozawa(FWO)法探讨油茶壳热解动力学。结果表明:油茶壳的热解过程可分为4个阶段:脱水、半纤维素热解、纤维素热解和木质素的二次热解。热解挥发分主要有H2O、CO2、CO和CH4,以及一些醛类、酸类、酮类有机物,且热解温度不同各组分的含量不同。KAS法和FWO法计算出的油茶壳热解活化能基本一致,均随着转化率的增大而增加。
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| 关 键 词： | 油茶壳 热解 TG-FT-IR 动力学 |
| 收稿时间： | 2015-02-12 |
TG-FT-IR Analysis and Kinetics Study of Camellia Shell Pyrolysis |
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| GU Jie,LIU Bin,ZHANG Qi-sheng,ZHOU Jian-bin. TG-FT-IR Analysis and Kinetics Study of Camellia Shell Pyrolysis[J]. Biomass Chemical Engineering, 2015, 49(4): 7-13. DOI: 10.3969/j.issn.1673-5854.2015.04.002 |
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| Authors: | GU Jie LIU Bin ZHANG Qi-sheng ZHOU Jian-bin |
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| Affiliation: | 1. College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;2. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China |
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| Abstract: | Pyrolysis of camellia shell was studied by using thermogravimetric analyzer coupled with Fourier transform infrared spectroscopy(TG-FT-IR).The activation energies of camellia shell pyrolysis depending on the conversion rate were calculated by two Model-free methods,namely Kissinger-Akahira-Sunose(KAS) and Flynn-Wall-Ozawa(FWO),respectively.The results indicated that the pyrolysis process of camellia shell was divided into four stages,i.e.,dehydration,decomposition of hemicellulose,decomposition of cellulose and the secondary degradation of lignin.The main components of volatiles were H2O,CO2,CO,and CH4,along with kinds of organics,such as aldehydes,acids and ketones.The content of each component at different pyrolysis temperatures was different.The activation energies of camellia shell pyrolysis estimated by KAS and FWO were similar.They rose with the increase of the conversion rate. |
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| Keywords: | camellia shell pyrolysis TG-FT-IR kinetics |
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