Abstract
In this study, Raman spectroscopy was utilized to investigate the evolution of char structure in pulverized coal (PC) during microwave irradiation. The results indicated that though microwave treatment was carried out at low powers of 132W or 264W, significant variation in char structure was still observed. Char structure turned out to be more irregular firstly under microwave irradiation. However, char structure of superior regularity was obtained with the extension of irradiation time. It can be conclude that short time microwave treatment may facilitate the chemical activity of coal, while long time microwave irradiation on PC may deteriorate its combustion or pyrolysis property.
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References
Pang Qing-hai, Zhang Jian-liang, Mao rui, et al. Mechanism of effect of microwave modification on pulverized coal combustion properties[J]. Journal of iron and steel research international, 21 (2014) 312–320.
Pang Qing-hai, Zhang Jian-liang, Mao rui, et al. Kinetic analysis on combustion characteristic of microwave irradiated pulverized coal[J]. Journal of iron and steel research, 25 (2013) 11–18.
Pang Qing-hai, Zhang Jian-liang, Jin Yong-long, et al. Effect of microwave modification on pulverized coal combustion properties[J]. Metalurgia internatioal, 17 (2012) 5–10.
Chisato Y, Shinichi S, Syu H, et al. Fundamental Study on Combustion of Pulverized Coal Injected into Coke Bed at High Rate[J]. ISIJ International, 32 (1992) 725–732.
V. P. Chabalala, N. Wagner, S. Potgieter-Vermaak. Investigation into the evolution of char structure using Raman spectroscopy in conjunction with coal petrography; Part 1[J]. 92 (2011) 750–756.
C. Z. Li. Some recent advances in the understanding of the pyrolysis and gasification behaviour of Victorian brown coal [J]. r, 86 (2007) 1664–1683.
X. J. Li, J. Hayashi, C. Z. Li. FT-Raman spectroscopic study of the evolution of char structure during-the pyrolysis of a Victorian brown coal[J]. Fuel, 85 (2006) 1700–1707.
X. J. Li, J. Hayashi, C. Z. Li. Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part VII. Raman spectroscopic study on the changes in char structure during the catalytic gasification in air [J]. Fuel, 85 (2006) 1509–1517.
O. Francioso, S. Sanchez-Cortes, S. Bonora, et al. Structural characterization of charcoal size-fractions from a burnt pinus pinea forest by FT-IR Raman and surface-enhanced Raman spectroscopies[J]. Journal of Molecular Structure, 994 (2011) 155–162.
O. O. Sonibare, T. Haeger, S. F. Foley. Structural characterization of Nigerian coals by X-ray diffraction, Raman and FTIR spectroscopy[J]. Energy, 35 (2010) 5347–5353.
V. P. Chabalala, N. Wagner, S. Potgieter-Vermaak. Investigation into the evolution of char structure using Raman spectroscopy in conjunction with coal petrography; Part 1[J]. 92 (2011) 750–756.
Li Xiao-jiang, Hyaashi Jun-ichiro, Li Chun-zhu. FT-Raman spectroscopic study of the evolution of char structure during the pyrolysis of a Victorian brown coal[J]. Fuel, 85 (2006) 1700–1707
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Qing-hai, P., Zhi-jun, H., Jun-hong, Z., Wen-long, Z., Zhe, N. (2016). Effect of Microwave Irradiation on Graphitization of Carbon Matrix in Pulverized Coal. In: Li, L., et al. Energy Technology 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48182-1_16
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DOI: https://doi.org/10.1007/978-3-319-48182-1_16
Publisher Name: Springer, Cham
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