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Contents

Economic evaluations of direct, indirect and hybrid coal liquefaction / Jong-Soo Bae ; In Sung Hwang ; Yeong-Jin Kweon ; Young-Chan Choi ; Se Joon Park ; Hak-Joo Kim ; Heon Jung ; Choon Han 1

Abstract 1

INTRODUCTION 1

PROCESS AND ANALYSIS METHOD 1

1. Hybrid Coal Liquefaction Process 1

2. Economic Efficiency Analysis 1

3. Cast Estimation 3

DATA OF ECONOMIC EFFICIENCY 3

1. Estimation of Investment Costs 3

2. Sales and Raw Material Cost Estimation 4

3. Variable Cost and Fixed Cost Estimation 4

ANALYSIS OF ECONOMIC EFFICIENCY AND SENSITIVITY 5

1. Analysis of Economic Efficiency of DCL, ICL and HCL 5

2. Sensitivity Analyses of DCL, ICL and HCL 6

3. Comparison of Economic Efficiency of DCL, ICL and HCL 7

CONCLUSIONS 8

ACKNOWLEDGEMENTS 8

REFERENCES 8

초록보기

The various geopolitical problems associated with oil have rekindled interest in coal, with many countries working on projects for its liquefaction. This study established the feasibility of coal liquefaction through a technical and economic examination of direct coal liquefaction (DCL), indirect coal liquefaction (ICL) and hybrid coal liquefaction (HCL) processes. An economic efficiency analysis was prepared involving costs of initial investment, annual operating and raw coal purchase and revenues from the sale of major products as key variables. For the raw materials, products and investments, analyses of net present value (NPV), internal rate of return (IRR) and sensitivity were carried out.

The processes’ IRRs were found to be 22.26% (DCL), 18.43% (ICL) and 20.90% (HCL). NPVs were $4.720m (DCL),$3.811 m (ICL) and $4.254 m (HCL), and payback periods were DCL 3.3 years, ICL 4.2 years, and HCL 3.6 years.

As a result of the sensitivity analysis, factors greatly affecting the earning potential of coal liquefaction included product prices, raw coal prices, and construction costs, which showed similar effects in each process.

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참고문헌 (15건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
1 Annual Energy Outlook 2010 with Projections to 2035, U. S. Energy Information Administration (http://www.eia.doe.gov/oiaf/aeo/coal.html). 미소장
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6 A.G. Comolli, Direct liquefaction proof of concept program, Hydrocarbon Technologies Inc. (1996). 미소장
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8 J. Wang, Y. Li, Y. Han, Y. Sun, Y. Fang, J. Zhao and Z. Qin, Chin. J. Catal., 30, 770 (2009). 미소장
9 J.W. Park, J. S. Bae, Y. J. Kweon, H. J. Kim, H. Jung and C. Han, Korean Chem. Eng. Res., 47, 781 (2009). 미소장
10 H&HW hybrid coal liquefaction plant, Headwaters Incorporated, September 27 (2006). 미소장
11 Y. F. Liu and R. Z. Wang, Energy Convers. Manage., 43, 2357 (2002). 미소장
12 John S. Page, Conceptual cost estimating manual, Gulf Professional Publishing (1996). 미소장
13 H. D. Schindler, J. M. Chen and J. D. Potts, Integrated Two Stage Liquefaction, Final Technical Report DOE Contract DEAC22-79ET14804 (1983). 미소장
14 Coal-to-liquid technology options, Headwaters Energy Services, June 10 (2007). 미소장
15 Baseline Technical and Economic Assessment of a Commercial Scale Fischer-Tropsch Liquids Facility, DOE/NETL, April 9 (2007). 미소장

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