| 14种凉味剂的热解动力学分析研究 |
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| 引用本文： | 王紫燕,汤建国,毛娟芳,袁大林,郑绪东,雷萍,李志强,任达兵,易伦朝,韩敬美. 14种凉味剂的热解动力学分析研究[J]. 中国烟草学报, 2021, 27(5): 7-14. DOI: 10.16472/j.chinatobacco.2020.193 |
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| 作者姓名： | 王紫燕 汤建国 毛娟芳 袁大林 郑绪东 雷萍 李志强 任达兵 易伦朝 韩敬美 |
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| 作者单位： | 1.云南中烟工业有限责任公司技术中心, 昆明市五华区红锦路367号 650231 |
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| 基金项目： | 中国烟草总公司重点科技项目“加热卷烟烟具与烟支耦合设计关键技术研究与应用”110202001010（XX-06） |
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| 摘 要： | 采用非等温热重法和两种动力学拟合方法（KAS法和Coats-Redfern法）对14种凉味剂进行了热解动力学分析。结果表明:（1）采用KAS拟合法估算的14种凉味剂的活化能变化范围为48.08 ~86.26 kJ/mol，且活化能随着转化率的增大而增大；（2）采用Coats-Redfern法求解了14种凉味剂的热解动力学参数（活化能和指前因子），其中异薄荷酮、薄荷素油、异胡薄荷醇、椒样薄荷油的活化能为15.51 ~43.37 kJ/mol，DL-薄荷醇、WS-23、L-薄荷酮、乙酸薄荷酯、乳酸薄荷酯、WS-3、薄荷酮甘油缩酮、琥珀酸单薄荷酯活化能为47.69 ~76.18 kJ/mol，WS-5、WS-12活化能为85.52 ~92.36 kJ/mol。
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| 关 键 词： | 凉味剂 薄荷醇 热解 动力学分析 |
| 收稿时间： | 2020-06-29 |
Study on pyrolysis kinetics of 14 kinds of cooling agents |
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| Affiliation: | 1.Technology Center, China Tobacco Yunnan Industrial Co. Ltd., Kunming 650231, Yunnan, China2.Kunming University of Science and Technology, Kunming 650500, China |
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| Abstract: | The pyrolysis kinetics of 14 kinds of cooling agents was analyzed by non-isothermal thermogravimetric method and two kinetic fitting methods (KAS and Coats-Redfern method). The results showed that: (1) The activation energy of the 14 cooling agents estimated by the KAS fitting method varied from 48.08 to 86.26 kJ/mol, and the activation energy increased with the increase of the conversion rate; (2) The Coats-Redfern method was adopted to solve the pyrolysis kinetic parameters (activation energy and pre-finger factor) of 14 cooling agents, among which the activation energy of isomenthone, menthol oil, iso-menthol and peppermint oil was between 15.51 and 43.37 kJ/mol, that of DL-menthol, WS-23, L-menthone, menthol acetate, menthol lactate, WS-3, menthone glycerol ketal, mono-menthol succinate was from 47.69 to 76.18 kJ/mol, and that of WS-5 and WS-12 was from 85.52 and 92.36 kJ/mol, respectively. |
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