Chinese Optics, Volume. 18, Issue 2, 333(2025)
Assessment of the toxicity of coal pyrolysis reaction in combination with TG-TDLAS
Fig. 1. (a) Schematic diagram and (b) physical diagram of the coal pyrolysis HCN detection system
Fig. 3. (a) Spectral absorption curves of HCN in the 5×10−6-20×10−6 mol/mol range; (b) linear relationship of HCN signal intensity as a function of concentration
Fig. 4. Changes in HCN concentrations released by bituminous coal at different heating rates
Fig. 5. Concentration variation of HCN released from three coal samples at a heating rate of 20°C/min
Fig. 6. Concentration variation of bituminous coal with different particle sizes at a heating rate of 30°C/min
Fig. 7. Changes in concentration and thermal weight loss of lignite at three heating rates
Table 1. Industrial analysis results of different coal types
View tableView in ArticleTable 1. Industrial analysis results of different coal types
全硫/Std 灰分/ Ad 挥发分/Vdaf 山西褐煤 1 26 33 山东烟煤 1.95 9.59 31.32 山东无烟煤 3.85 13.1 10.19
Table 2. Kinetic parameters of pyrolysis of different coal types at different heating rates
View tableView in ArticleTable 2. Kinetic parameters of pyrolysis of different coal types at different heating rates
煤种 β， °C/min T， °C E，kJ/mol A , min−1R2 褐煤 10 421~654 14.875 12.018 0.932 654~899 29.092 109.600 0.933 20 409~632 9.667 5.898 0.975 632~880 25.396 141.629 0.968 30 453~647 22.932 107.295 0.931 647~894 30.971 458.678 0.951 烟煤 10 420~640 27.519 133.482 0.990 640~870 31.750 244.656 0.965 20 443~661 22.617 103.486 0.975 661~890 27.552 182.316 0.942 30 460~643 20.100 114.484 0.933 643~890 27.061 369.150 0.941 无烟煤 10 475~708 44.614 1163.052 0.959 708~890 43.431 653.392 0.950 20 481~648 45.240 2450.536 0.942 650~890 37.665 670.213 0.949 30 480~650 42.587 2383.327 0.927 650~890 37.556 1024.036 0.931
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Xing-xing MENG, Wen-yun KANG, Geng-qian WANG, Lin LI, Ya-li TIAN, Gu-qing GUO, Qiang LIU, Xuan-bing QIU, Chuan-liang LI. Assessment of the toxicity of coal pyrolysis reaction in combination with TG-TDLAS[J]. Chinese Optics, 2025, 18(2): 333
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Received: Jul. 10, 2024
Accepted: --
Published Online: May. 19, 2025
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