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http://dx.doi.org/10.14478/ace.2015.1071

Desulfurization Characteristics of Domestic Limestones through Simultaneous Calcination and Desulfurization Reaction  

Shin, Ji Hoon (Department of Resources and Energy Engineering, Chonbuk National University)
Kim, Yea Ra (Department of Resources and Energy Engineering, Chonbuk National University)
Kook, Jin Woo (Department of Resources and Energy Engineering, Chonbuk National University)
Kwak, In Seop (Department of Resources and Energy Engineering, Chonbuk National University)
Park, Kyoung-Il (Green Energy Laboratory, Korea Electric Power Corporation (KEPCO) Research Institute)
Lee, Jong-Min (Green Energy Laboratory, Korea Electric Power Corporation (KEPCO) Research Institute)
Lee, See Hoon (Department of Resources and Energy Engineering, Chonbuk National University)
Publication Information
Applied Chemistry for Engineering / v.26, no.5, 2015 , pp. 557-562 More about this Journal
Abstract
In order to analyze and compare the desulfurization characteristics of five different kinds of domestic limestons, a thermogravimetric analyzer (TGA) was used in this study. Calcium carbonate contents of the domestic limestone varied from 91 to 96 wt%. Experimental temperature and sulfur dioxide concentration of $850^{\circ}C$ and 2,750 ppm, respectively were selected to simulate commercial operation conditions. In this study, the calcination and desulfurization reaction of limestones were simultaneously occurred and investigated to simulate in-situ desulfurization reaction in commercial circulating fluidized bed combustors. In addition, desulfurization reactivities of limes having the average particle sizes of 37.5, 90.5, 159, 356 and $750{\mu}m$ were investigated. Desulfurization reactivities via simultaneous calcination and desulfurization reactions were 5-20% lower than those of using general desulfurization reactions.
Keywords
circulating fluidized bed (CFB); desulfurization; calcination; limestone; thermogravimetric analyzer (TGA);
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Y. Wu and E. J. Anthony, Investigation of sulphation behavior of two fly ashy samples produced from combustion of different fuels in a 654 MWe CFB boiler, Powder Tech., 208, 237-241 (2011).   DOI   ScienceOn
2 E. J. Anthony and D. L. Granatstein, Sulfation phenomena in fluidized bed combustion systems, Prog. Energy Combust. Sci., 27, 215-236 (2001).   DOI   ScienceOn
3 Y. C. Bak, Sulfation Reaction kinetics of pulverized Korean Dolomite and limestone using Thermogravimetric Analyses, Energy Eng. J., 7, 216-222 (1998).
4 K. Laursen, W. Duo, J. R. Grace, and J. Lim, Sulfation and reactivation characteristics of nine limestones, Fuel, 79, 153-163 (1999).
5 S. K. Kang and M. K. Chung, Specific surface area and pore structure changes of calcined Lime withe calcination and sulfation reaction, Korean J. Sanit., 13, 19-29 (1998).
6 S. V. Pisupati, R. S. Wasco, J. L. Morrison, and A. W. Scaroni, Sorbent behaviour in circulating fluidized bed combustors, Fuel, 75, 759-768 (1995).
7 H. T. Jang and G. J. Lee, Analysis of calcination characteristics of Limestone in a fluidized bed reactor, J. Korea Ind. Eng. Chem., 11, 69-74 (2000).
8 K. H. Han, J. I. Ryu, and G. T. Jin, Desulfurization characteristics of Domestic Anthracite by limestone at bench scale pressurized fluidized bed combustor, Trans. Korean Soc. Mech. Eng. B, 25, 1373-1383 (2001).
9 S. R. Braganca and J. L. Castellan, FBC desulfurization process using coal with low sulfur content, high oxidizaing conditions and metamorphic limestones, Braz. J. Chem. Eng., 26, 375-383 (2009).   DOI
10 F. Montagnaro, P. Salatino, and F. Scala, The influence of temperature o limestone sulfation and attrition under fluidized bed combustion conditions, Exp. Therm. Fluid Sci., 34, 352-358 (2010).   DOI   ScienceOn
11 K. S. Lee, J. H. Jung, S. I. Keel, H. K. Lee, and S. S. Kim, Characteristics of CaCO3 sorbent particles for the In-Furnace desulfurization process: Effects of residence time and atmospheric condition, Trans. Korean Soc. Mech. Eng. B, 34, 121-127 (2010).   DOI   ScienceOn
12 F. Scala, R. Chirone, P. Meloni, G. Carcangiu, M. Manca, G. Mulas, and A. mulas, Fluidized bed desulfurization using lime obtained after slow calcination of limestone particles, Fuel, 114, 99-105 (2013).   DOI   ScienceOn
13 H. S. Jammulamadaka, H. B. Vuthaluru, D. H. French, and S. V. Pisupati, A study of Indian limestones for sulfur capture in FBC plants: Particle size sensitivity of sulfation behavior, Fuel, doi:10.1016/j.fuel.2015.06.049.   DOI   ScienceOn
14 H. P. Kuo, H. Y. Tseng, A. N. Huang, and R. C. Hsu, A study of the ash production behavior of spent limestone powders in CFB, Adv. Powder Tech., 25, 472-475 (2014).   DOI   ScienceOn
15 S. H. Lee, J. M. Lee, J. S. Kim, J. H. Choi, and S. D. Kim, Combustion characteristics of anthracie coal in the D CFB boiler, Hwahak Konghak, 38, 516-522 (2000).