An insight into the roles of exogenous potassium salts on the thermal degradation of flue-cured tobacco

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• 作者：Shun Zhou^a ; ^b ; Qing He^b ; Xiaofeng Wang^b ; ^{xfw1984@mail.ustc.edu.cn} ; Min Ning^b ; Ying Yang^d ; Yingbo Xu^b ; ^c ; Yaping Zhang^b ; Peng Zou^b ; Zhenfeng Tian^b ; ^c ; Kaibo Chen^b ; ^c ; Hua Wang^c ; Shike She^c
• 关键词：Flue-cured tobacco ; Potassium salts ; Thermal degradation
• 刊名：Journal of Analytical and Applied Pyrolysis
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：385-394
• 全文大小：4592 K
• 卷排序：123

文摘

An opposite effect of potassium salts on thermal stability of tobacco at low and high temperature ranges, respectively. A reduction of the total pore volume and surface area of tobacco pyrolysis residues caused by potassium salts. A positive catalysis of potassium slats with oxygen-bearing organic functional groups, but a protective effect on oxygen-free organic species. A gentle escape process of volatile molecules at 350–550 °C due to the protection on the tobacco pyrolysis residues.