摘要
[目的]研究烟叶的燃烧特性,为不同类型烟叶的燃烧性能鉴别提供科学的参考。[方法]以同步热分析(STA)技术分析上、中、下部位烟叶的燃烧特性。[结果]在不同的氛围和升温速率下,烟叶的燃烧特性指数Sn(烟叶中部)>Sn(烟叶下部)>Sn(烟叶上部),即在不同氛围和升温速率下中部烟叶的燃烧性能最佳。不论氮气氛围或氮氧混合气氛围下,反应活化能均是E(烟叶上部)>E(烟叶下部)>E(烟叶中部),烟叶的活化能在氮气氛围下大于氮氧混合气氛围。[结论]建立的燃烧特性指数和反应动力学评价方法,能够为不同类型烟叶的鉴别提供有效的途径,且直观简洁。
[ Objective ] To study the combustion characteristics of tobacco, so as to provide scientific references for identifying the combustion performance of different types of tobacco. [ Method] The combustion characteristics of upper, middle and lower leaves were analyzed with Sim- ultaneous Thermal Analysis （STA）. [ Result] Under different gas atmosphere and temperature increase rate, the combustion index of tobacco showed as Sn（middle leaves） 〉 Sn（lowerleaves） 〉Sn（upperleaves）, which meant that the combustion performance ofmiddle tobacco leav- es was the best. The activation energy was in the order of E（ upper leaves） 〉 E（lower leaves） 〉 E（middle leaves） under both the nitrogen atmosphere and the mixed nitrogen-oxygen atmosphere, but the activation energy was higher in nitrogen atmosphere than in the mixed nitrogen- oxygen atmosphere. [ Conclusion] The established method for evaluating the combustion index and reaction kinetics can provide effective chan- nels for identifying different types of tobacco leaves intuitively and simply.
出处
《安徽农业科学》
CAS
2012年第18期9868-9870,共3页
Journal of Anhui Agricultural Sciences
基金
中国烟草总公司科技重大专项项目(110201001001)
云南中烟工业公司科技开发计划(2010JC04)
云南省创新团队建设项目(2009CI014)
关键词
烟叶
燃烧特性指数
燃烧性能
Tobacco
Combustion index
Combustion performance
