摘要烟叶本身的热解性能影响着香烟的燃烧行为。通过对烟叶热解行为的研究，可以评估香烟的燃烧行为，从而为减少有毒害物质的产生提供指导依据，进而达到降焦减害的目的。本论文运用差式热量扫描仪（DSC）对五种不同属性的烤烟烟叶进行热解行为研究，应用AKTS软件对实验数据进行处理。根据处理得到的热力学参数（发热量、初始热解温度、放热功率）和动力学参数（活化能）对五种样品进行比较分析，最终得出：产自云南昆明品种为云87的烟草中，等级为C3FA的烟叶比等级为B1FA的烟叶具有更高的热稳定性，同样，其等级C3FA的烟叶比产自湖南郴州同品种同等级的烟叶具有更高的热稳定；同等级不同产地不同品种间的烟草的热解行为不具有重复性。64152

毕业论文关键词：  烤烟烟叶  DSC  放热量  活化能  动力学参数  

毕业设计说明书（论文）外文摘要

Title  the pyrolysis stability experiments of the Commonly used raw material of flue-cured tobacco leaf

Abstract The combustion behavior of cigarettes is affected by the pyrolysis performance of tobacco leaves. The assessment of combustion behavior of cigarettes is on the basis of the research of the pyrolysis performance of tobacco leaves as a result guidance was provided to  reduce toxic substances and purpose was achieved to reduce the tar and harmful components.Differential thermal scanner (DSC) was applied in this paper to study the pyrolysis performance of different properties of flue-cured tobacco leaves and then AKTS software was adopted to deal with the experimental data.The analysis of thermodynamic parameters(such as heat,  initial pyrolysis temperature, heating power) and  kinetic parameters (such as activation energy) of five samples were showed that C3FA tobacco possessd higher thermal stability than B1FA tobacco of cloud 87 from yunnan kunming and C3FA tobacco rom yunnan kunming possessd higher thermal stability than the same breed and the  same class from Chenzhou,Hunan.The result was also showed that the same class tabacoo of different regions, different varieties  has no repeatability of the pyrolysis behavior.

Keywords  flue-cured tobacco， DSC， the quantity of released heat，  activation energy， kinetics parameter

1  绪论 1

1.1  课题研究背景 1

1.2  现状研究 2

1.3  现有研究存在的问题或不足 4

1.4  本论文的工作 4

2  实验仪器及方法 5

2.1  差示扫描量热仪（DSC） 5

2.1.1  DSC简介与应用 5

2.1.2  DSC原理及结构组成 5

2.2  AKTS软件简介 7

2.3  数据处理方法 8

2.3.1  Friedman微分法 9

2.3.2  Flynn-Ozawa-Wall积分法 10

2.3.3  ASTM E698法 10

2.4  实验部分 11

2.4.1  实验仪器 11

2.4.2  实验样品 11

2.4.3  实验方法 11

2.5  本章小结 12

3  同品种同地区不同等级间烤烟烟叶原料热解性能的研究