Capturing and sequestering carbon dioxide (CO2) from coal-fired power plant has been proposed as one of the key solutions for stabilizing greenhouse gas concentration in the atmosphere. There are two main procedures for CO2 capturing in existing coal-fired combustion plants: removal of nitrogen from flue gases and removal of nitrogen from the air before combustion in order for a gas stream to be ready for geo-sequestration. In oxy-fuel combustion, fuel is burned with pure oxygen (O2) instead of air. This technology recycles flue gases back into the furnace to control temperature and make up the volume of the missing nitrogen (N2) to ensure that there is sufficient gas to maintain the temperature and heat flux profiles in the boiler. In this study, feasibility of oxy–coal fired for retrofitting existing normal air-operated coal-fired power plant has been studied. Also, the optimum fraction of recirculated flue gas for maximizing generated power is represented. Our results show that the oxy-fuel combustion is suitable for retrofitting the existing coal-fired power plants as well as for new plants without the replacement of main components.
Energy Information Administration. International Energy Outlook 2010. Report No. DOE/EIA-0383(2011), U.S. Department of Energy, Washington, DC, available from http://www.eia.gov/forecasts/aeo/pdf/0383(2011).pdf.
2.
Gielen, D. The future role of CO2 capture and storage:results of the IEA-ETP Model. Report No. EET/2003/04, 2003 (International Energy Agency, Paris, France).
3.
AbrahamB. M.AsburyJ. G.LynchE. P.TeotiaA. P. S.Coal-oxygen process provides CO2for enhanced recovery. Oil Gas J., 1982, 80(11), 68–70. 75.
4.
WellerA. E.RisingB. W.BoiarskiA. A.NordstromR. J.BarrettR. E.LuceR. G.Experimental evaluation of firing pulverized coal in a CO2/O2 atmosphere, 1985Argonne National Laboratory, Energy and Environmental Systems Division, Document No. ANL/CNSV-TM-168.
5.
BerryG.WolskyA.Modeling heat transfer in an experimental coal-fired furnace when CO2/O2 mixture replace air, December, 1986ASME 1986 Winter Annual Meeting, Paper 86-WA/HT51.
6.
WangC. S.BerryG. F.ChangK. C.WolskyA. M.Combustion of pulverized coal using waste carbon dioxide and oxygen. Combust. Flame, 1988, 72, 301–310.
7.
AbeleA. R.KindtG. S.ClarkW. D.PayneR.ChenS. L.An experimental program to test the feasibility of obtaining normal performance from combustors using oxygen and recycled gas instead of air, 1988Argonne National Laboratory Document No. ANL/CNSV-TM-204.
8.
NozakiT.TakanoS.KigaT.OmataK.KimuraK.Analysis of the flame formed during oxidation of pulverized coal by an O2–CO2 mixture. Energy, 1997, 22(2–3), 199–205.
9.
Kiga, T., Takano, S., Kimura, N., Omata, K., Okawa, M., Mori, T., and Kato, M. Characteristics of pulverized-coal combustion in the system of oxygen/recycled flue gas combustion. Energ. Convers. Mgmt, 1997, 38, S129–S134 (Supplement).
10.
KimuraN.OmataK.KigaT.TakanoS.ShikisimaS.The characteristics of pulverized coal combustion in O2/CO2mixtures for CO2 recovery. Energ. Convers. Mgmt, 1995, 36(6-9), 805–808.
11.
NakayamaS.NoguchiY.KigaT.MiyamaeS.MaedaU.KawaiM.TanakaT.KoyataK.MakinoH.Pulverized coal combustion in O2/CO2mixtures on a power plant for CO2 recovery. Energ. Convers. Mgmt, 1992, 33(5–8), 379–386.
12.
KannicheM.Gros-BonnivardR.JaudP.Valle-MarcosJ.AmannJ. M.BouallouC.Pre-combustion, post-combustion and oxy-combustion in thermal power plant for CO2 capture. Appl. Therm. Eng., 2010, 30, 53–62.
13.
SeepanaS.JayantiS.Optimized enriched CO2 recycle oxy-fuel combustion for high ash coals. Fuel,, 2009online published.
14.
HongJ.ChaudhryG.BrissonJ. G.FieldR.GazzinoM.GhoniemA. F.Analysis of oxy-fuel combustion power cycle utilizing a pressurized coal combustor. Energy, 2009, 34(9), 1332–1340.
15.
SaravananV.JayantiS.SeetharamuS.Optimization of a coal-fired furnace for oxyfuel combustion. Proceedings of the ASME International Mechanical Engineering Congress and Exposition, 2008 (Paper No: IMECE2008-67181, USA).
16.
Simbeck, D.R. and McDonald M. Existing coal power plant retrofit CO2 control options analysis. In Proceedings of the Fifth Conference on Greenhouse gas control technologies (GHGT-5), Cairns, Australia, 13–16 August 2000.
17.
KorkmazÖ.OeljeklausnG.GörnerK.Analysis of retrofitting coal-fired power plants with carbon dioxide capture. Energy Procedia, 2009, 1(1), 1289–1295.
18.
WoycenkoD. M.van de KampW. L.RobertsP. A.Combustion of pulverized coal in a mixture of oxygen and recycled flue gas – summary of the APG research program., 1995OU2-CT92-0093, IFRF Doc F98/Y/4.
19.
Wilkinson, M.B., Boden, J. C., Panesar, R., and Allam R.J. A study on the capture of carbon dioxide from a large refinery power station boiler by conversion to oxyfuel operation. In Proceedings of the Fifth International Conference on Greenhouse gas control technologies, Cairns, Australia, 13–16 August 2000.
20.
WallT. F.GuptaR.ShengC. D.Calculations of the heat transfer changes for O2/CO2 oxyfuel combustion retrofits of air fired Pf plant with associated recycle ratios and O2 concentrations fed to the boiler., 2003University of Newcastle, Chemical Engineering, NSW 2308.
21.
Zheng, L., Clements, B., and Douglas, M. A. Simulation of an oxy-fuel retrofit to a typical 400 MWe utility boiler for CO2 capture. In Proceedings of the 26th International Technical Conference on Coal utilization and fuel systems, Clearwater, Florida, USA, 5–8 March 2001.
22.
CoelhoL. M. R.AzevedoJ. L. T.CarvalhoM. G.Numerical study of retrofitting to use recirculated flue gases with O2 injection, March, 2003Greenhouse Gas Control Technologies.
23.
Khare, S., Wall, T., Gupta, R., Elliott, L., and Buhre, B. J. P. Retrofitting of air-fired pf plant to oxy-fuel: heat transfer impacts for the furnace and convective pass, and associated oxygen production requirements. In Proceedings of the 5th Asia-Pacific Conference on Combustion, Adelaide, 17–20 July 2005.
24.
AnderssonK.JohnssonF.Process evaluation of an 865 MWe lignite fired O2/CO2 power plant. Energ. Convers. Mgmt, 2006, 47, 3487–3498.
25.
Varagani, R. K., Chatel-Pelage, F., Pranda, P., Rostam-Abadi, M., and Lu, Y. Bose AC. Performance simulation and cost assessment of oxy-combustion process for CO2 capture from coal-fired power plants. In Proceedings of the Fourth Annual Conference on Carbon sequestration, Alexandria, Virginia, USA, 2–5 May 2005.
26.
OkawaM.KimuraN.KigaT.TakanoS.AraiK.KatoM.Trial design for a CO2 recovery power plant by burning pulverized coal in O2/CO2. Energ. Convers. Mgmt, 1997, 38(Suppl), S123–S127.
KneerR.FörsterM.AbelD.MaierH. R.ModigellM.NiehuisR.PetersN.Oxycoal-AC Innovative Herausforderungen für eine saubere Lösung der zukünftigen Stromversorgung. VGB Power Tech, 2006, 10, 74–81.
29.
SeltzerA.FanZ.RobertsonA.Conceptual design of supercritical O2-based PC boiler final report, November, 2006 (Project-No. DE-FC26-04NT42207, Foster Wheeler Power Group, Inc, Livingston, New Jersey).
30.
LiszkaM.Zi̧ebikA.Coal-fired oxy-fuel power unit – Process and system analysis. Energy, 2010, 35(2), 943–951.
31.
CottrellA.NunnJ.PalfreymanD.UrferD.ScaifeP.WibberleyL.System assessment of future electricity generation options for Australia, 2003Technical Assessment Report 32, CRC for Coal in Sustainable Development.
32.
OkawaM.KimuraN.KigaT.TakanoS.AraiK.KatoM.Trial design for a CO2 recovery power plant by burning pulverized coal in O2/CO2. Energ. Convers. Mgmt, 1997, 38(Suppl), S123–S127.
33.
AnderssenK.BirkestadH.MaksinenP.JohnssonF.StrombergL.LyngfeltA.An 865 MWe lignite fired power plant with CO2 capture - a technical feasibility study, March 2003Greenhouse Gas Control Technologies.
34.
Nsakala, N. Y., Marion, J., Bozzuto, C., Liljedahl, G., Palkes, M., and Vogel, D. Engineering feasibility of CO2 capture on an existing us coal-fired power plant. In Proceedings of the First National Conference on Carbon sequestration, Washington DC, 14–17 May 2001.
