加热非燃烧烟草薄片的热解特征研究

Study on pyrolysis characteristic of the heat-not-burn reconstituted tobacco

采用热重技术结合标准均方根误差,研究8种烟草薄片、3种非烟草纤维以及烟草自身纤维的热解特性及差异度。结果表明:传统卷烟用薄片的热重曲线与加热非燃烧烟草薄片的热重曲线存在很大的差异,热解差异度为37.97%。主要表现在加热非燃烧烟草薄片的热重曲线上增加了1个保润剂的峰,且水分、提取液和木质素的含量相对较高,而半纤维素、纤维素和残留物的质量明显较低。

In order to study the pyrolysis characteristic of the heatnot-burn reconstituted tobacco,eight kinds of reconstituted tobacco,three kinds of non-tobacco fiber and tobacco own fiber were tested by TGA（Thermogravimetric Analyzer）technology,and the resulting DTG（Derivative Thermogravimetry）data were analyzed by NRMSE（normalized root mean squared error）to calculate the pyrolysis difference degree.The results showed that the pyrolysis behavior of the reconstituted tobacco used in heat-not-burn cigarettes was much different from that in traditional cigarettes and the pyrolysis difference degree was 37.97%.There was an additional peak in DTG curve of the reconstituted tobacco used in heat-not-burn cigarettes,which can be attribute to the humectants.Compared with the reconstituted tobacco used in traditional cigarettes,the contents of water,extracting solution and lignin were relatively higher,and the contents of hemicellulose and cellulose were obviously lower in the reconstituted tobacco used in heat-not-burn cigarettes.