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http://dx.doi.org/10.7464/ksct.2013.19.1.038

The Stabilization Study of Low-rank Coal by Vapor Adsorption  

Chun, Dong Hyuk (Clean Fuel Department, Korea Institute of Energy Research)
Park, In Soo (Clean Fuel Department, Korea Institute of Energy Research)
Cho, Wan Taek (Clean Fuel Department, Korea Institute of Energy Research)
Jo, Eun Mi (Clean Fuel Department, Korea Institute of Energy Research)
Kim, Sang Do (Clean Fuel Department, Korea Institute of Energy Research)
Choi, Ho Kyung (Clean Fuel Department, Korea Institute of Energy Research)
Yoo, Jiho (Clean Fuel Department, Korea Institute of Energy Research)
Lim, Jeong Hwan (Clean Fuel Department, Korea Institute of Energy Research)
Rhim, Young Joon (Clean Fuel Department, Korea Institute of Energy Research)
Lee, Sihyun (Clean Fuel Department, Korea Institute of Energy Research)
Publication Information
Clean Technology / v.19, no.1, 2013 , pp. 38-43 More about this Journal
Abstract
Vapor adsorption of hydrocarbon has been studied for stabilization after drying low-rank coal. The surface characteristics and the propensity of spontaneous combustion were observed for stabilized coal which was maintained with hydrocarbons as stabilizer at several conditions of residence time and temperature. Surface area of micropores in coal mainly decreased after vapor adsorption. As residence time and temperature of adsorption process increased, the propensity of spontaneous combustion decreased. The type of hydrocarbons did not effect on the propensity of spontaneous combustion. As the analysis results of this work, the amount of hydrocarbon adsorbates required to stabilize dried coal was 0.5 wt% or less of coal, and the stabilizing effect was induced by adsorption of low-molecular-weight hydrocarbons.
Keywords
Low-rank coal; Vapor adsorption; Spontaneous combustion; Stabilization;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Sing, K. S. W., Everett, D. H., Haul, R. A. W., Moscou, L., Pierotti, R. A., Rouquerol, J., and Siemieniewska, T., "Reporting Physisorption Data for Gas/Solid Systems with Special Reference to the Determination of Surface Area and Porosity," Pure & Appl. Chem., 57, 603-619 (1985).   DOI
2 Xuyao, Q., Wang, D., Milke, J. A., and Zhong, X., "Crossing Point Temperature of Coal," Min. Sci. Technol., 21, 255 (2011).
3 Kadioglu, Y., and Varamaz, M., "The Effect of Moisture Content and Air-drying on Spontaneous Combustion Characteristics of Two Turkish Lignites," Fuel, 82, 1685 (2003).   DOI   ScienceOn
4 Cai, Y., Liu, D., Pan, Z., Yao, Y., Li, J., and Qiu, Y., "Pore Structure and Its Impact on $CH_4$ Adsorption Capacity and Flow Capability of Bituminous and Subbituminous Coals from Northeast China," Fuel, 103, 258-168 (2013).   DOI   ScienceOn
5 Tompsett, G. A., Krogh, L., Griffin, D. W., and Conner, W. C., "Hysteresis and Scanning Behavior of Mesoporous Molecular Sieves," Langmuir, 21, 8214-8225 (2005).   DOI   ScienceOn
6 Park, J. N., Kim, R. H., Woo, H. C., and Chun, B. S., "Removal of Off-flavor from Laminaria Japonica by Treatment Process of Supercritical Carbon Dioxide," Clean Technol., 18, 191-199 (2012).   과학기술학회마을   DOI   ScienceOn
7 Tahmasebi, A., Yu, J., Han, Y., Yin, F., Bhattacharya, S., and Stokie, D., "Study of Chemical Structure Changes of Chinese Lignite upon Drying in Superheated Steam, Microwave, and Hot Air," Energy Fuels, 26, 3651-3660 (2012).   DOI   ScienceOn
8 Mujumdar, A. S., and Jangam, S. V., "Drying of Low rank Coal," M3TC Technical Report, January, 2011.
9 Fei, Y., Aziz, A. A., Nasir, S., Jackson, W. R., Marshall, M., Hulston, J., and Chaffee, A. L., "The Spontaneous Combustion Behavior of Some Low rank Coals and a Range of Dried Products," Fuel, 88, 1650-1655 (2009).   DOI   ScienceOn
10 Unal, S., Wood, D. G., and Harris, I. J., "Effect of Drying Methods on the Low Temperature Reactivity of Victorian Brown Coal to Oxygen," Fuel, 71, 183-192 (1992).   DOI   ScienceOn
11 Umar, D. F., Daulay, B., Usui, H., Deguchi, T., and Sugita, S., "Characterization of Upgraded Brown Coal," Coal Prep., 25, 31-45 (2005).   DOI   ScienceOn
12 Japan Coal Energy Center; Kobe Steel, Ltd., "Low-rank Coal Upgrading Technology (UBC process)," Clean Coal Technologies in Japan, 2006, pp. 77.
13 Clark, K., "Commercial Scale Low rank Coal Upgrading using the BCB Process," 2nd Coaltrans Upgrading Coal Forum, Presentation (2010).
14 Wang, C., and Firor, R., "Simulated Distillation System for ASTM D2887, Based on the Agilent 6890N GC," Agilent Technologies, 5989-2726EN (2005).
15 Trumbore, C. D., "Estimates of Air Emissions from Asphalt Storage Tanks and Truck Loading," Environ. Prog., 18, 250-259 (1999).   DOI   ScienceOn
16 Lim, C. S., Manan, Z. A., and Sarmidi, M. R., "Simulation Modeling of the Phase Behavior of Palm Oil-Supercritical Carbon Dioxide," J. Am. Oil Chemists' Soc., 80, 1147-1156 (2003).   DOI   ScienceOn
17 http://www.cheric.org/research/kdb