烟草科技2025，Vol.58Issue(5)：1-8,8.
加热状态下烟草原料水分生成特性分析
Analysis of moisture generation characteristics of tobacco materials under heating conditions
摘要
Abstract
To investigate the moisture generation characteristics of tobacco materials under heating conditions,the pyrolysis behavior and the moisture generation trends by selected tobacco materials(laminar and reconstituted tobacco materials)and six components(cellulose,hemicellulose model compound,pectin,starch,glucose,fructose)were comparatively studied by thermogravimetric-mass spectrometry and heating furnace-Karl Fischer coulometry.The amounts of moisture generated by tobacco samples at different temperature ranges were quantified.The results showed that:1)The initial temperatures for fructose pyrolysis and dehydration were about 35-45 ℃ lower than those for glucose.The temperature ranges of pyrolysis and dehydration of the hemicellulose model compound were wider than those of cellulose.Pectin showed a 30-40 ℃ lower initial temperature for pyrolysis and dehydration compared to starch.2)Tobacco materials could continuously generate moisture during heating.There were three separate pyrolytic moisture peaks for the flue-cured tobacco sample in the ranges of 150-255,255-335 and 335-390 ℃.The flue-cured tobacco sample had additional thermogravimetric and moisture release peaks at 160-235 ℃ compared to the burley tobacco sample.The fluctuation characteristics of the derivative thermogravimetric curve and moisture release curve for the rolling processed reconstituted tobacco material at 200-330 ℃ were both milder.3)The proportions of moisture generated by the tobacco samples at 100-280 ℃ to the total amount of moisture generated at 30-280 ℃ reached up to about 50％.The amounts of moisture generated by the flue-cured tobacco and oriental tobacco at 100-280 ℃ first increased,then decreased and increased again;that by the burley tobacco showed an increasing trend followed by a steady stage at 100-220 ℃ and an increasing trend followed by a decreasing trend at 220-280 ℃;and that by rolling processed reconstituted tobacco exhibited a decreasing trend followed by an increasing trend at 100-220 ℃ and a gentle fluctuation trend at 220-280 ℃.关键词
烤烟/白肋烟/香料烟/辊压法再造烟叶/水分/热裂解/单组分Key words
Flue-cured tobacco/Burley tobacco/Oriental tobacco/Rolling processed reconstituted tobacco/Moisture/Pyrolysis/Single component分类
轻工业引用本文复制引用
吴晋禄,胡安福,蒋健,夏倩,汤晓东,赵路灿,周国俊,王骏,方梦祥..加热状态下烟草原料水分生成特性分析[J].烟草科技,2025,58(5):1-8,8.基金项目
国家重点研发计划项目"生物质选择性热解制备高品位液体燃料和高值添加剂的关键技术开发和应用"(2023YFE0111600). （2023YFE0111600）
