TG和Py-GC/MS研究不同烟草的热解特性
TG and Py-GC/MS Studies on Pyrolysis Characteristics of Different Cut-Tobacco
苏小平 1申涛 1张平 1苏琼 1王彦斌 1孙鸣 2马晓迅2
作者信息
- 1. 西北民族大学化工学院环境友好复合材料国家民委重点实验室甘肃省生物质功能复合材料工程研究中心 甘肃省高校环境友好复合材料及生物质利用重点实验室,甘肃 兰州 730030
- 2. 西北大学化工学院碳氢资源清洁利用国家国际科技合作基地陕北能源先进化工利用技术教育部工程研究中心陕西省洁净煤转化工程技术中心,陕西西安 710069
- 折叠
摘要
利用TG和Py-GC/MS对兰州、猴王和中华三种香烟的烟丝进行了热解特性分析,并用商业烟嘴过滤器和GC/MS对香烟中的烟焦油进行了收集与组成分析.结果表明,三种品牌的香烟烟丝在相同的气氛下热失重曲线的变化基本类似.热失重主要发生在第11(120 ℃～360 ℃)和第Ⅲ(360 ℃～600 ℃)阶段,与N2气氛相比,O2气氛下烟丝的热解速率和总失重明显增加,尤其对第Ⅲ阶段的热解有明显促进作用.三种香烟的烟丝热解挥发分中组分含量不同,兰州、猴王和中华烟的烟丝热解挥发分中烟碱含量最高,分别达到8.35％、6.53％和6.24％;三种品牌香烟的烟焦油含量大小顺序为中华＞兰州＞猴王.三种香烟的烟焦油组成差异明显,兰州烟和中华烟的烟焦油中含量最高的是烟碱,而猴王烟的烟焦油中含量最高的是醇类化合物.
Abstract
Pyrolysis characteristics on three cut-tobacco of Lanzhou,Houwang and Zhonghua cigarettes were analyzed by TG and Py-GC/MS.The cigarette tar in cigarettes were collected and analyzed by commercial cigarette holder filter and GC/MS.The results showed that the changes of thermogravimetric curves of the three brands of cut-tobacco under the same atmosphere were basically similar,the thermogravimetric curves mainly occurred in the second(120 ℃～360 ℃)and third stages(360 ℃～600 ℃).As compared with N2 atmosphere,the thermal decomposition rate and total weight loss of cut-tobacco in O2 atmosphere increased significantly,especially promoted the pyrolysis of the third stage.The contents of nicotine in the cut-tobacco pyrolysis volatile of Lanzhou,Houwang and Zhonghua tobacco were the highest,reaching 8.35％,6.53％and 6.24％respectively.The order of the tar contents of the three brands of cigarettes was Zhonghua＞Lanzhou＞Houwang.There were obvious differences in the tar composition of three cigarettes.The highest content of the tar of Lanzhou and Zhonghua tobacco was nicotine,while the highest content of the tar of Houwang tobacco was alcohol compounds.
关键词
烟丝/TG/Py-GC/MS/烟焦油Key words
Cut-tobacco/TG/Py-GC/MS/Tobacco tar引用本文复制引用
基金项目
甘肃省教育厅青年博士基金(2022QB-029)
西北民族大学引进人才科研项目(xbmuyjrc202215)
西北民族大学引进人才科研项目(xbmuyjrc202216)
国家自然科学基金面上项目(22178289)
出版年
2024
NETL
NSTL
万方数据