Abstract
The semicokes from different coals were prepared under various temperatures by partial gasification method in a fixed bed. According to the analysis of the V daf in the coals and semicokes, a new method is presented to predict the content of remnant volatile matter in the semicokes from coal partial gasification. The two fuel character indexes FV and FC were introduced to symbolize the second volatilized temperature and the fully volatilized temperature respectively. Then according to the proximate and ultimate analysis data of raw coal, the content of V daf in the semicokes prepared under various temperatures can be predicted.
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Xu G, Murakami T, Suda T, et al. The superior technical choice for dual fluidized bed gasification. Ind Eng Chem Res, 2006, 45(8): 2281–2286
Xiong R, Dong L, Yu J, et al. Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor. Fuel Process Technol, 2010, 91(8): 810–817
Guan G, Fushimi C, Tsutsumi A, et al. High-density circulating fluidized bed gasifier for advanced IGCC/IGFC—Advantages and challenges. Particuology, 2010, 8(6): 602–606
Li Q J, Zhang M Y, Shi A Y. Experimental study on coal gasification in pressurized spout-fluid bed (in Chinese). J Southeast Univ, 2006, 36(5): 764–768
Li Q J, Zhang M Y, Jiang B. Effect of temperature and pressure on coal gasification in a pressurized spout-fluid bed (in Chinese). Power Technol, 2010, 41(4): 10–13
Lin S Y, Suzuki Y, Hatano H, et al. Pressure effect on char combustion in different rate-control zones: initial rate expression. Chem Eng Sci, 2000, 55(1): 43–50
Jiang H, Jin J, Hao X H. Study on entrained—flow gasifier partial gasification character (in Chinese). Coal Conver, 2010, 33(3): 29–33
Fu W B. Macro-general Rules of Coal Combustion Theories (in Chinese). Beijing: Qinghua University Press, 2003. 1–50
Zhao Y X, Serio M A, Solomon P R. A general model for devolatilization of large coal particles. Proceedings of 26th Symposium (International) on Combustion, vols 1 & 2. Pittsburgh: Combustion Institute in Pittsburgh, 1996. 3145–3151
Gregory D R, Littlejohn R F. BCURA Month Bull. Cheltenham: BCURA, 1965. 173–180
Liu D F. Experimental study of the combustion characteristics of the semicokes—the solid residues from coal partial gasification (in Chinese). Doctoral Dissertation. Beijing: Institute of Mechanics, Chinese Academy of Sciences, 2007. 42–43
Field M A, Gill D W, Morgen B B, et al. Combustion of Pulverized Coal. Leatherhead: Institute of Energy, BCURA, 1983. 120–137
Xiang Y H. Fundamental study on integration and optimization of coal partial gasification and combustion process (in Chinese). Doctoral Dissertation. Taiyuan: Institute of Coal Chemistry, Chinese Academy of Sciences, 2002. 32–33
Huang N. Study of combustion characteristics of semi-coals (in Chinese). Doctoral Dissertation. Beijing: Institute of Mechanics, Chinese Academy of Sciences, 2002. 16–17
Xie K C. Coal Structure and Its Reactivity (in Chinese). Beijing: Science Press, 2002. 270–282
Ruiz B, Para J B, Pajares J A, et al. Study of porous development in pyrolysis chars obtained from a low-volatile coal. J Anal Appl Pyrolysis, 2001, 58–59: 873–886
Pis J J, Centeno T A, Mahamud M, et al. Preparation of active carbons from coal Part I. Oxidation of coal. Fuel Process Technol, 1996, 47(2): 119–138
Pis J J, Mahamud M, Para J B, et al. Preparation of active carbons from coal Part II. Carbonisation of oxidised coal. Fuel Process Technol, 1997, 50(2–3): 249–260
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Liu, D., Wei, X. & Sheng, H. Prediction of remnant volatile matter in the semicokes from coal partial gasification. Sci. China Technol. Sci. 54, 3017–3021 (2011). https://doi.org/10.1007/s11431-011-4537-3
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DOI: https://doi.org/10.1007/s11431-011-4537-3