Browse > Article
http://dx.doi.org/10.9713/kcer.2012.50.3.449

An Economic Analysis of Solvent Extraction Process under Mild Condition for Production of Ash-Free Coal  

Choi, Ho-Kyung (Clean Coal Research Center, Korea Institute of Energy Research)
Kim, Sang-Do (Clean Coal Research Center, Korea Institute of Energy Research)
Yoo, Ji-Ho (Clean Coal Research Center, Korea Institute of Energy Research)
Chun, Dong-Hyuk (Clean Coal Research Center, Korea Institute of Energy Research)
Lim, Jeong-Hwan (Clean Coal Research Center, Korea Institute of Energy Research)
Rhim, Young-Joon (Clean Coal Research Center, Korea Institute of Energy Research)
Lee, Si-Hyun (Clean Coal Research Center, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.50, no.3, 2012 , pp. 449-454 More about this Journal
Abstract
Economic feasibility of the process for a coal extraction under mild condition, which will produce ash-free coal at a temperature lower than that of coal softening, was analyzed. To this end, the plant of 6000 t/d in capacity was assumed to be constructed near a coal mine in Indonesia, and the IRR, NPV, B/C ratio, and DPP of the plant were calculated based on $96 million investment cost and 15 years service life. The IRR, NPV, B/C ratio, and DPP of the plant were calculated to be 31%, $87 million, 1.08, and 3.9 years, respectively, and which satisfied the evaluation criteria of investment. The economic feasibility of the plant was mainly dependent on the price of the coal initially fed and the residue coal remaining after the extraction, according to sensitivity analysis.
Keywords
Ash-Free Coal; Solvent Extraction; Mild Condition; Economic Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Hulston, J., Favas, G. and Chaffee, A. L., "Physico-Chemical Properties of Loy Yang Lignite Dewatered by Mechanical Thermal Expression," Fuel, 84(14-15), 1940-1948(2005).   DOI   ScienceOn
2 Bongers, G. D., Jackson, W. R. and Woskoboenko, F., "Pressurised Steam Drying of Australian Low-Rank Coals: Part 1. Equilibrium Moisture Contents," Fuel Process. Technol., 57(1), 41-54(1998).   DOI   ScienceOn
3 Allardice, D. J., Clemow, L. M., Favas, G., Jackson, W. R., Marshall, M. and Sakurovs, R., "The Characterisation of Different Forms of Water in Low Rank Coals and Some Hydrothermally Dried Products," Fuel, 82(6), 661-667(2003).   DOI   ScienceOn
4 Umar, D. F., Daulay, B., Usui, H., Deguchi, T. and Sugita, S., "Characterization of Upgraded Brown Coal (UBC)," Coal preparation, 25(1), 31-45(2005).   DOI   ScienceOn
5 Morimoto, M., Nakagawa, H. and Miura, K., "Low Rank Coal Upgrading in a Flow of Hot Water," Energy Fuels, 23(5), 4533-4539(2009).   DOI
6 Lee, S. H. and Kim, S. D., "Technology for the Preparation of Ash-free Coal from Low Rank Coal (LRC)," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 46(3), 443-450(2008).   과학기술학회마을
7 Lee, S. H., Kim, S. D., Jeong, S. K., Rhim, Y. J., Kim, D. H. and Woo, K. J., "Ultrasonic Effect on the Extraction of Ash-free coal from Low Rank Coal," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 46(3), 555-560(2008).   과학기술학회마을
8 Chun, D. H., Kim, S. D., Rhim, Y. J. and Lee, S. H., "Economic Analysis of Upgrading Low Rank Coal Process," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 49(5), (2011).
9 神戶製鋼所, "ハイパ一コ一ル利用高効率燃燒技術の開發成果報告書," 石炭利用次世代技術開發調査 成果報告書(2005).
10 Argus Media Ltd., "Argus/Coalindo Indonesian Coal Index Report," Issue 008(2011)(http://www.argusmedia.com/Coal/-/media/Files/PDFs/Samples/Argus-Coalindo-ICI.ashx).
11 KOTRA (http://www.kotra.or.kr).
12 Ministry of Public Administration and Security, Costing and Pricing Conventions for Local Governments(2010).
13 Wikipedia, The Free Encyclopedia, "Tax around the World," (2010) (http://en.wikipedia.org/wiki/Tax_rates_around_the_world).
14 BP, "Statistical Review of World Energy," (2011)(http://www.bp.com).
15 Ellison, G. and Stanmore, B. R., "High Strength Binderless Brown Coal Briquettes Part I. Production and Properties," Fuel Process. Technol., 4(4), 277-289(1981).   DOI   ScienceOn
16 Bergins, C., Berger, S. and Strauss, K., "Dewatering of Fossil Fuels and Suspensions of Ultrafine Particles by Mechanical/Thermal Dewatering", Chem. Eng. Technol., 22(11), 923-927(1999).   DOI   ScienceOn