烟梗热解焦油类产物析出特性实验研究

黄正光; 龚德鸿; 徐圆圆; 杨浪

doi:10.19912/j.0254-0096.tynxb.2023-0209

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (6) : 1-9. DOI: 10.19912/j.0254-0096.tynxb.2023-0209

烟梗热解焦油类产物析出特性实验研究

黄正光, 龚德鸿, 徐圆圆, 杨浪

作者信息 +

EXPERIMENTAL STUDY ON PRECIPITATION CHARACTERISTICS OF TAR PRODUCTS FROM TOBACCO STEM PYROLYSIS

Huang Zhengguang, Gong Dehong, Xu Yuanyuan, Yang Lang

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文章历史 +

摘要

利用热重-质谱联用技术对烟梗热解特性进行研究,在氮气气氛下分析升温速率和粒径对烟梗热解焦油类产物的析出特性影响。结果表明：烟梗热解析出焦油类产物主要有苯、甲苯、苯胺、苯酚、糠醛,升温速率为20 K/min的80目烟梗颗粒热解焦油类产物相对累积量分别为240.55×10^-12、184.29×10^-12、93.71×10^-12、147.50×10^-12、154.64×10^-12 A/mg。其中苯和甲苯主要在木质素热解阶段析出,糠醛主要在半纤维素和纤维素热解阶段析出,苯酚在两个阶段均有较大析出。烟梗热解焦油类产物析出强度随升温速率的增大而增强,粒径为80目的烟梗颗粒热解析出焦油产量最大,150目最小。

Abstract

Thermogravimetric mass spectrometry was used to investigate the pyrolysis features of tobacco stem. The effects of temperature rise rate and particle size on the tar product precipitation characteristics were analyzed in a nitrogen atmosphere. The results illustrate that the primary tar products during the pyrolysis of tobacco stem are benzene, toluene, aniline, phenol, and furfural. When 80 mesh tobacco stem particles were heated at a rate of 20 K/min, the relative accumulative amounts of tar products are 240.55×10^-12, 184.29×10^-12, 93.71×10^-12, 147.50×10^-12, and 154.64×10^-12 A/mg, respectively. Benzene and toluene are mostly precipitated in the pyrolysis stage of lignin, furfural is mainly released product in the pyrolysis stage of hemicellulose and cellulose, while phenol is precipitated throughout both stages. The intensity of tar products from tobacco stem pyrolysis increases with the rise of heating rate. The output of tar from tobacco stem pyrolysis with 80 mesh size is the highest, and the output amount of tar from tobacco stem pyrolysis with 150 mesh size is the lowest.

导出引用

黄正光, 龚德鸿, 徐圆圆, 杨浪. 烟梗热解焦油类产物析出特性实验研究[J]. 太阳能学报. 2024, 45(6): 1-9 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0209

Huang Zhengguang, Gong Dehong, Xu Yuanyuan, Yang Lang. EXPERIMENTAL STUDY ON PRECIPITATION CHARACTERISTICS OF TAR PRODUCTS FROM TOBACCO STEM PYROLYSIS[J]. Acta Energiae Solaris Sinica. 2024, 45(6): 1-9 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0209

中图分类号： TK6

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