周向型加热卷烟烟芯段逐口热解过程的空间表征

赵金科; 崔华鹏; 徐海涛; 秦亚琼; 陈业娴; 刘雨; 刘瑞红; 刘绍锋

doi:10.12187/2026.05.012

October 2026

Article Contents

Zhao Jinke, Cui Huapeng, Xu Haitao, et al. Study on the spatial characterization of the puff-by-puff pyrolysis process in circumferentially heated cigarette core segments[J]. Journal of Light Industry, 2026, 41(5): 132-142. doi: 10.12187/2026.05.012

Citation: Zhao Jinke, Cui Huapeng, Xu Haitao, et al. Study on the spatial characterization of the puff-by-puff pyrolysis process in circumferentially heated cigarette core segments[J]. Journal of Light Industry, 2026, 41(5): 132-142. doi: 10.12187/2026.05.012 shu

Study on the spatial characterization of the puff-by-puff pyrolysis process in circumferentially heated cigarette core segments

Zhao Jinke ¹ ,
Cui Huapeng ¹ ,
Xu Haitao ² ,
Qin Yaqiong ¹ ,
Chen Yexian ³ ,
Liu Yu ¹ ,
Liu Ruihong ¹ ,
Liu Shaofeng ^1,,

1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China;
2. R&D Center of China Tobacco Shandong Industrial Co., Ltd., Jinan 250100, China;
3. Sichuan Sanlian New Materials Co., Ltd., Chengdu 610199, China

Corresponding author: Liu Shaofeng, sfliu@126.com
Received Date: 2024-11-12
Accepted Date: 2024-12-10

Abstract

【Objective】This study aimed to investigate the pyrolysis process of tobacco core materials at different positions in circumferentially heated cigarettes during puff-by-puff smoking.【Methods】Tobacco core materials from heated cigarettes after puff-by-puff smoking were used as raw materials. A self-developed spatial separation method was used to divide the tobacco core into nine different positions. A thermogravimetric analyzer and gas chromatography-flame ionization detection (GC-FID) were used to analyze the physicochemical property differences of tobacco core materials at different positions after puff-by-puff smoking.【Results】During puff-by-puff smoking, the carbonization region of the tobacco core gradually spread from the outer layer of the middle-rear section to the inner layer and the front section with increasing puff number, and the entire tobacco core showed significant carbonization by the end of the smoking session. The pyrolysis process of tobacco core materials could be divided into four stages, among which Stage Ⅱ was the main mass-loss stage, corresponding to a temperature range of 209~415 ℃. Peak A on the DTG curve mainly resulted from the thermal release of chemical components such as glycerol, nicotine, and 1,2-propanediol in the tobacco core materials. With increasing puff number, the maximum mass-loss rate of Peak A on the DTG curve for tobacco core materials at the same position showed an overall decreasing trend. After the fifth puff, the maximum mass-loss rate of Peak A on the DTG curve for tobacco core materials at different positions decreased in the order of front-inner, front-middle, and front-outer in the radial direction, and in the order of front-inner, rear-inner, and middle-inner in the axial direction. During puff-by-puff smoking, the total residual amounts of glycerol, nicotine, and 1,2-propanediol in the tobacco core materials decreased puff by puff. After the smoking session, the total residual amounts of the three components in the tobacco core materials were 21.90%, 2.98%, and 0.31% of their initial contents, respectively. During puff-by-puff smoking, the residual amounts of glycerol, nicotine, and 1,2-propanediol in the tobacco core materials all decreased in the order of inner layer, middle layer, and outer layer in the radial direction, while their decreasing order in the axial direction changed from front section, middle section, and rear section to front section, rear section, and middle section.【Conclusion】The puff-by-puff changes in the residual amounts of different compounds in tobacco core materials were consistent with their pyrolysis characteristics, and their spatial distribution in the tobacco core materials was affected by temperature and their boiling points.
- heated tobacco product,
- thermogravimetric analysis,
- GC-FID,
- spatial characterization
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Study on the spatial characterization of the puff-by-puff pyrolysis process in circumferentially heated cigarette core segments

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