中国烟草学报2025，Vol.31Issue(2)：1-9,9.DOI:10.16472/j.chinatobacco.2023.T0244
再造梗丝生产过程中的化学成分、微结构和热解特性变化研究
Study on the changes of chemical composition,microstructure and thermal decompose characteristics of reconstituted tobacco cut stem during the production process
摘要
Abstract
[Objective]This study aims to analyze the chemical composition,microstructure,and thermal decompose characteristics of reconstituted tobacco cut stem.[Methods]The study focused on key production processes of reconstituted tobacco stems,utilizing composition analysis and thermogravimetric analysis to explore the changes in physicochemical properties during processing.[Results](1)The chemical composition of reconstituted tobacco stems significantly changed during processing.After extraction and airflow drying,the contents of total sugar,total nitrogen,and nicotine decreased significantly,while the cellulose content increased.After the reapplication of the extracted liquid,the relative contents of cellulose and hemicellulose decreased,and the total and reducing sugars increased.(2)The color difference value of the samples after extraction and secondary airflow drying changed significantly compared to the raw stems,but the final reconstituted stems retained a color appearance similar to that of the original stems.SEM and BET analyses showed that secondary airflow drying significantly expanded the micro-porous structure of the in-process samples.(3)The thermal decompose weight loss process of reconstituted tobacco cut stem can be divided into five stages,with notable differences in the temperature range and weight loss rate of each stage.The samples after extraction and secondary airflow drying showed lower weight loss rates in stages Ⅱ and Ⅲ,while the sample after reapplying the extracted liquid had a weight loss rate in stage Ⅱ closer to that of the raw stems.All samples showed the highest weight loss rate in the Ⅳ,with the extracted and secondary airflow-dried samples showing higher maximum weight loss rates and higher Ti and Tf values.The overall pyrolysis index of the final product was higher than that of the raw stems,indicating an improvement in comprehensive pyrolysis characteristics.(4)The thermal decomposition process of the main weightless stages of the reconstituted tobacco cut stem during the production process conformed to the F1.5 chemical reaction control mechanism,and the processing steps affect the thermal decomposition kinetic parameters of the samples during the same weight loss stage.关键词
再造梗丝/理化指标/热解特性/动力学Key words
the reconstituted tobacco cut stem/physicochemical indexes/thermal decompose characteristics/kinetic study引用本文复制引用
任瑞冰,张峻松,胡亚宁,刘友杰,任昭辉,付祺,梁淼,李瑞丽,宋亮,崔成哲..再造梗丝生产过程中的化学成分、微结构和热解特性变化研究[J].中国烟草学报,2025,31(2):1-9,9.基金项目
吉林烟草工业有限责任公司科技计划项目"再造梗丝回填料液的自主开发与应用研究"(KJXM-2023-11) （KJXM-2023-11）
