| Issue |
Korean Chemical Engineering Research,
Vol.49, No.5, 639-643, 2011
Vol.49, No.5, 639-643, 2011
저등급석탄 고품위화 공정의 경제성 분석
Economic Analysis of Upgrading Low Rank Coal Process
저등급석탄의 고품위화 기술 중 하나인 유중 슬러리 건조 공정은 슬러리 혼합, 슬러리 탈수, 유분 회수, 건조, 성형 공정으로 구성된 건조 및 안정화 공정이다. 연간 백만 톤 규모의 저등급석탄 고품위화 공정에 대한 경제성을 분석하기 위하여 재료비, 노무비, 경비, 판매관리비를 산정하고 이에 따른 현금흐름을 계산하였다. 투자비 $1억, 할인율 12%, 내용 연수 20년에 대한 IRR, B/C ratio, NPV, 할인투자회수기간을 통해 사업의 경제성을 분석한 결과 모든 투자 기준을 만족하는 것으로 나타났다. 민감도 분석을 통해 투자가치가 원료탄과 제품 가격에 매우 민감한 것을 확인하였으며, 석탄가격이 급등하는 현 추세에서는 예상 투자가치가 증가할 것으로 판단되었다.
Fry-drying of coal slurry is one of the upgrading low rank coal processes. It consists of slurry mixing, slurry dewatering, solvent recovery and briquetting. Cost estimation and economic feasibility are examined for the upgrading low rank coal process based on capacity of 1 million ton/yr. In case that investment costs are $100,000,000, discount rate is 12%, and service life is 20 years, the results of economic analysis are enough to satisfy the evaluation criteria of investment such as IRR, B/C ratio, NPV and discounted payback period. According to sensitivity analysis,
investment value are very sensitive to raw material cost and product price. Since the bituminous coal price is currently soaring, it is expected that the investment value will increase more and more.
[References]
- Japan Coal Energy Center; Kobe Steel, Ltd., “Low-rank Coal Upgrading Technology (UBC Process),” Clean Coal Technologies in Japan, NEDO, 77-78, 2006
- Kim KJ, Kim MC, Business Analysis and Valuation, 1sted., Dasan, Seoul, 2003
- Moon SH, Kim YW, Ryu IS, Lee SJ, J. Energy Eng., 18, 213, 2009
- Sugita S, Deguchi T, Shigehisa T, Kobe Steel Engineering Reports., 53, 41, 2003
- Argus Media Ltd., “Argus/Coalindo Indonesian Coal Index Report,” Issue 015(2010)(http://web04.us.argusmedia.com/ArgusStatic-Content/snips/sectors/pdfs/argus_coalindo.pdf).
- Expat Web Site Association Jakarta, Indonesia, Gas Prices in Indonesia(http://www.expat.or.id/info/gasprices.html).
- Argus Media Ltd., “Argus Asphalt Report,” 12M-48(2010) (http://www.argusmedia.com/ArgusStaticContent//snips/sectors/pdfs/argus_ asphalt.pdf).
- KOTRA (http://www.kotra.or.kr).
- Yamazaki H, Tojo K, Miyanami K, Powder Technology., 64, 199, 1991
- McCabe WL, Smith JC, Harriott P, Unit Operations of Chemical Engineering, 5th ed., McGraw-Hill, 1993
- Parekh BK, Procedia Earth and Planetary Science., 1, 621, 2009
- Smith JM, Van Ness HC, Abbott MM, Introduction to Chemical Engineering Thermodynamics, 6th ed., McGraw-Hill, 2000
- Hamada Boiler Group, China, “Steam Cost All Countries,” Hamada Boiler Catalogue(2008) (http://www.hamadaboiler.com/catalogue/page-5-steam-cost-all-countries.html).
- Ministry of Public Administration and Security, Costing an Pricing Conventions for Local Governments, 2010
- Wikipedia, The Free Encyclopedia, “Tax around the World" (2010) (http://en.wikipedia.org/wiki/Tax_rates_around_the_world).
- Yukio A, “UBC Process,” 2nd Coal Trans Upgrading Coal Forum, September, Jakarta, 2010
- KOMIS (http://www.kores.net/v2009/vortal/priceInformation.jsp#coal).
- Park JW, Kweon WJ, Kim HJ, Jung H, Han C, Korean Chem. Eng. Res., 47(1), 127, 2009
[Cited By]
- Jo J, Choi K, Shin S, Lee J, Kim JW, Korean Chemical Engineering Research, 54(3), 315, 2016
- Lim YI, Choi J, Moon HM, Kim GH, Korean Chemical Engineering Research, 54(3), 320, 2016
- Um BH, Ahn CS, Korean Chemical Engineering Research, 56(1), 6, 2018
- Oh CH, Lim YI, Korean Chemical Engineering Research, 56(4), 496, 2018
- Oh CH, Lim YI, Korean Chemical Engineering Research, 56(4), 496, 2018
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