In-situ measurement of CO2 column density and flame temperature of single biomass particle combustion by laser absorption spectroscopy

被引:0
|
作者
Wang, Shaojie [1 ]
Gu, Mingming [1 ]
Yin, Shengming [1 ]
Zhou, Zhongyue [1 ]
Ma, Liuhao [2 ]
Qi, Fei [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
[2] Wuhan Univ Technol, Sch Automot Engn, Wuhan 430070, Peoples R China
基金
中国国家自然科学基金;
关键词
Biomass; CO2; Laser absorption spectroscopy; Temperature; High speed photography; LIGNIN; CELLULOSE; BEHAVIORS; PYROLYSIS; HEMICELLULOSE; MODEL; SIZE; COAL;
D O I
10.1063/1674-0068/cjcp2408105
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The measurement of the combustion characteristics of a single biomass particle is essential for studying massive biofuel energy conversion process; however, it is challenging due to the small physical scale of the biomass particle flame. In this work, we report an investigation of the combustion behavior of single lignin and single cellulose particle through CO2 absorption spectroscopy and high-speed photography. The biomass samples are prepared with an initial diameter of about 1.0 mm and are ignited on a heating plate placed inside a multi-pass absorption cell. The shape and size transformation of single biomass particle are recorded through high-speed photography, and the combustion temperature and CO2 column densities are measured through laser absorption spectroscopy at 4.172 mu m. We find that the maximum combustion temperatures are 1662 +/- 38 K and 1569 +/- 26 K for lignin and cellulose particle, respectively. Besides, we find that CO2 generation precedes the generation of visible volatile flame for cellulose particle. While for lignin particle, the CO2 generation is found to be almost at the same time as its volatile combustion stage begins. The measurement technique and results presented in this work are of practical interest for biomass combustion studies and arc meaningful for the development of biomass thermal conversion mode.
引用
收藏
页码:745 / 753
页数:9
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