Design and analysis of a diesel processing unit for a molten carbonate fuel cell for auxiliary power unit applications

다국어 초록 (Multilingual Abstract)

Fuel cell-based auxiliary power units (APUs) are a promising technology for meeting global energy needs in an environmentally friendly way. This study uses diesel containing sulfur components such as dibenzothiophene (DBT) as a feed. The sulfur tolerance of molten carbonate fuel cell (MCFC) modules is not more than 0.5 ppm, as sulfur can poison the fuel cell and degrade the performance of the fuel cell module. The raw diesel feed in this study contains 10 ppm DBT, and its sulfur concentration should be reduced to 0.1 ppm. After desulfurization, the feed goes through several unit operations, including steam reforming, water-gas shift, and gas purification. Finally, hydrogen is fed to the fuel cell module, where it generates 500 kW of electrical energy. The entire process, with 52% and 89% fuel cell and overall system efficiencies, respectively, is rigorously simulated using Aspen HYSYS, and the results are input into a techno-economic analysis to calculate the minimum electricity selling price (MESP). The electricity cost for this MCFC-based APU was calculated as 1.57$/kWh. According to predictions, the cost reductions for fuel cell stacks will afford electricity selling prices of 1.51$/kWh in 2020 and 1.495$/kWh in 2030. Based on a sensitivity analysis, the diesel price and capital cost were found to have the strongest impact on the MESP.

참고문헌 (Reference)

1 Ersoz, 154 : 67-, 2006

2 R. Aris, 4 : 227-, 1965

3 V. C. Srivastava, 2 : 759-, 2012

4 S. Ahmed, 12 : 4-, 1999

5 Ersoz, 31 : 1490-, 2006

6 B. Lindstro, 34 : 3367-, 2009

7 C. S. Specchia, 154 : 379-, 2006

8 B. Jurriaan, 196 : 5928-, 2011

9 G. Karagiannakis, 2013

10 X. L. Ma, 48 : 523-, 2003

11 C. S. Specchia, 33 : 3393-, 2008

12 R. Aris, "The Mathematical Theory of Diffusion and Reaction in Permeable Catalyst: Vol. 1: The Theory of the Steady State" Oxford University Press 1975

13 Y. Sanghai, "Techno Economic Analysis of Hydrogen Fuel Cell Used as An Electricity Storage Technology in a Wind Farm with High Amounts of Intermittent Energy" University of Massachusetts 2013

14 D. Hennessy, "Solid Oxide Fuel Cell Diesel Auxiliary Power Unit Demonstration" DOE Hydrogen and Fuel Cells Program 2012

15 P. Fornaserio, "Renewable Resources and Renewable Energy: A Global Challenge" CRC Press 2011

16 United States Environmental Protection Agency, "Renewable Energy Fact Sheet: Fuel Cells"

17 R. Robert, "Molten Carbonate and Phosphoric Acid Stationary Fuel Cells: Overview and Gap Analysis" National Renewable Energy Laboratory 2010

18 "KS M 2610 Diesel Fuel Oil"

19 A. Moreno, "International status of molten carbonate fuel cell (MCFC) technology" Joint Research Centre-Institute for Energy 2008

20 G. Alptekin, "Desulfurization of Logistic Fuels for Fuel Cell APUs"

21 "Ballard Power System Inc."

22 T. Richard, "Analysis, Syntesis, and Design of Chemical Processes" Prentice Hall 2012

23 Hoang Phuoc Ho, "Adsorptive Desulfurization of Diesel for Fuel Cell Applications: A Screening Test" 한국청정기술학회 20 (20): 88-94, 2014