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林产化学与工业 ›› 2013, Vol. 33 ›› Issue (5): 67-70.doi: 10.3969/j.issn.0253-2417.2013.05.013

• 1研究报告 • 上一篇    下一篇

造纸法烟草薄片纸基的热失重特性及其动力学分析

韩迎迎1, 李军1, 曾健1,2, 饶国华1,2, 邵干辉1,2, 赵瑞峰1,2, 杨飞1   

  1. 1. 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640;2. 广东中烟工业有限责任公司技术中心, 广东 广州 510145
  • 收稿日期:2012-07-03 修回日期:1900-01-01 出版日期:2013-10-30 发布日期:2013-10-30
  • 通讯作者: 曾健,男,工程师,博士,主要从事烟草植物资源高值化利用技术的研究;E-mail:zengjianzb@126.com。

Thermogravimetric Characteristics and Kinetic Analysis of Reconstituted Tobacco Paper-base

HAN Ying-ying1, LI Jun1, ZENG Jian1,2, RAO Guo-hua1,2, SHAO Gan-hui1,2, ZHAO Rui-feng1,2, YANG Fei1   

  1. 1. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;2. Technology Centre, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, China
  • Received:2012-07-03 Revised:1900-01-01 Online:2013-10-30 Published:2013-10-30

摘要: 采用热重分析法对不同钾盐用量下的烟草薄片纸基的热解特性进行了研究,并根据微分热重曲线,建立了动力学模型,计算了热解反应的动力学参数。结果表明:200~500℃ 是烟草薄片纸基热解的主要阶段;随着钾盐用量的增加,烟草薄片纸基最大失重峰温提前,未添加钾盐的对照组最大失重峰温为 352.1℃,而当钾盐质量分数增加到 2.0% 时,最大失重峰温降低到 319.8℃。根据Coats-Redfern法,不同用量下烟草薄片纸基的主要失重阶段可用一个一级反应表示,随着钾盐用量的增加,活化能有所降低,未添加钾盐的对照组活化能是 35.21 kJ/mol,当钾盐的含量添加到 2.0%,活化能降低为 27.84 kJ/mol。

关键词: 造纸法烟草薄片, 柠檬酸钾, 热解, 热重分析, 动力学

Abstract: The pyrolysis characteristics of reconstituted tobacco paper-base with different dosage of citric acid potassium were investigated by means of thermogravimetry. A dynamic model describing the pyrolysis process was established according to the differential thermogravimetric curves, and the corresponding kinetic parameters were calculated. The results showed that the pyrolysis of reconstituted tobacco paper-base mainly occurred at 200-500℃. The weight loss peak moved forward with the increasing potassium dosage, and the weight loss peak temperature of the control group was 352.1℃, while it reduced to 319.8℃ as 2.0% potassium citrate was added. According to the Coats-Redfern method, the pyrolysis of reconstituted tobacco paper-base could be described by a first-order reaction, and the activation energy of the control sample was 35.21 kJ/mol. On the other hand, when the sample as 2.0% potassium citrate was added, it represented 27.84 kJ/mol.

Key words: paper-process reconstituted tobacco, potassium citrate, pyrolysis, thermogravimetric analysis, kinetic

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