Back
 EPE  Vol.5 No.2 , March 2013
Effect of Atmosphere on Volatile Emission Characteristic in Oxy-Fuel Combustion
Abstract: A new type of power supply which was called oxy-fuel combustion power plant was introduced to reduce greenhouse gasses emission. In this paper the volatile emission characteristic of pulverized coal is studied under air atmosphere and oxy-fuel atmosphere. Combustion experiments of Datong bituminous coal were carried out in a wire mesh reactor at heating rates of 1 K/s, 10 K/s and 1000 K/s respectively under air and O2/CO2 atmosphere conditions in order to investigate the volatile emission characteristic. The concentrations of volatile (mainly CO and CH4) emission were on-line measured by infrared gas analyzer. It was indicated that the concentrations of CO and CH4 in O2/CO2 atmosphere were higher than those in air. The direct oxidation of carbon and gasification reaction between carbon and CO2 are the main causes of the increased amount of CO. The higher concentration of CO2 also results in the increased amount of CH4 in O2/CO2 conditions.
Cite this paper: L. Wu, S. Chen and J. Luo, "Effect of Atmosphere on Volatile Emission Characteristic in Oxy-Fuel Combustion," Energy and Power Engineering, Vol. 5 No. 2, 2013, pp. 135-139. doi: 10.4236/epe.2013.52013.
References

[1]   S. Gunter, A. M. Leema, S. Uwe and M. Jorg, “Oxy-Fuel Coal Combustion—A Review of the Current State of the Art,” International Journal of Greenhouse Gas Control, Vol. 5, No. S1, 2011, pp. 16-35. doi:10.1016/j.ijggc.2011.05.020

[2]   F. W. Terry, “Combustion Processes for Carbon Capture,” Proceedings of the Combustion Institute, Vol. 31, No. 1, 2007, pp. 31-47. doi:10.1016/j.proci.2006.08.123

[3]   Z. Liu, “Build Strong Smart Grid as Pillar of Sound and Rapid Development,” Power System and Clean Energy, Vol. 25, No. 9, 2009, pp. 1-3. (in Chinese)

[4]   EPRI, “Power Delivery System and Electricity Markets of the Future,” Palo Alto, CA, EPRI, 2003.

[5]   M. Amin and P. F. Schewe, “Preventing Blackouts: Building a Smarter Power GRID,” Scientific American, 2008, pp. 60-67.

[6]   B. T. Maja, B. Jacob, A. J. Peter, G. Peter, D. J. Anker, “Oxy-Fuel Combustion of Solid Fuels,” Progress in Energy and Combustion Science, Vol. 36, No. 5, 2010, pp. 581-625. doi:10.1016/j.pecs.2010.02.001

[7]   B. J. P. Buhre, L. K. Elliott, C. D. Sheng, R. P. Gupta and T. F. Wall, “Oxy-Fuel Combustion Technology for CoalFired Power Generation,” Progress in Energy and Combustion Science, Vol. 31, No. 4, 2005, pp. 283-307. doi:10.1016/j.pecs.2005.07.001

[8]   D. Singh, E. Croiset, P. L. Douglas and M. A. Douglas, “Techno-Economic Study of CO2 Capture from an Existing Coal-Fired Power Plant: MEA Scrubbing vs O2/CO2 Recycle Combustion,” Energy Conversion and Management, Vol. 44, No. 19, 2003, pp. 3073-3091. doi:10.1016/S0196-8904(03)00040-2

[9]   M. Alejandro and R. S. Christopher, “Ignition and Devolatilization of Pulverized Bituminous Coal Particles during Oxygen/Carbon Dioxide Coal Combustion,” Proceedings of the Combustion Institute, Vol. 31, No. 2, 2007, pp. 1905-1912. doi:10.1016/j.proci.2006.08.102

[10]   A. B. Paula and A. Yiannis, “Single-Coal-Particle Combustion in O2/N2 and O2/CO2 Environments,” Combustion and Flame, Vol. 153, 2008, pp. 270-287.

[11]   T. Zeng and W. Fu, “The Ratio CO/CO2 of Oxidation on a Burning Carbon Surface,” Combustion and Flame, Vol. 107, No. 3, 1996, pp. 197-210. doi:10.1016/S0010-2180(96)00071-5

[12]   M. Faraday and C. Lyell, “Explosions in Coal Mines,” Philosophical Magazine, Vol. 26, 1845, pp. 16-35.

[13]   K. Cen, Q. Yao and Z. Luo, “Advanced Combustion,” Zhejiang University Press, Hangzhou, 2002, pp. 277-284.

[14]   J. Arthur, “Reactions between Carbon and Oxygen,” Transactions of the Faraday Society, Vol. 47, 1951, pp. 164-178. doi:10.1039/tf9514700164

[15]   L. Tognotti, J. Longwell and A. Sarofim, “The Products of the High Temperature Oxidation of a Single Char Particle in an Electrodynamic Balance,” Proceedings of the Combustion Institute, Vol. 23, No. 1, 1991, pp. 1207- 1213.

[16]   N. Kimura, K. Omata, T. Kiga, S. Takano and S. Shikisima, “Characteristics of Pulverized Coal Combustion in O2/CO2 Mixtures for CO2 Recovery,” Energy Conversion and Management, Vol. 36, No. 6-9, 1995, pp. 805-808. doi:10.1016/0196-8904(95)00126-X

[17]   K. Renu, K. Liza and F.Terry, “Differences in Reactivity of Pulverised Coal in Air (O2/N2) and Oxy-Fuel (O2/CO2) Conditions,” Fuel Processing Technology, Vol. 90, No. 6, 2009, pp. 797-802. doi:10.1016/j.fuproc.2009.02.009

[18]   L. Zheng and E. Furimsky, “Assessment of Coal Combustion in O2/CO2 by Equilibrium Calculations,” Fuel Processing Technology, Vol. 81, No. 1, 2003, pp. 23-34. doi:10.1016/S0378-3820(02)00250-3

[19]   C. Wang, G. Berry and K. Chang, “Combustion of Pulverized Coal Using Waste Carbon Dioxide and Oxygen,” Combustion and Flame, Vol. 72, No. 3, 1988, pp. 301- 310. doi:10.1016/0010-2180(88)90129-0

[20]   D. Woycenko, K. Vande and P. Roberts, “Combustion of Pulverized Coal in a Mixture of Oxygen and Recycled Flue Gas,” European Commission Journal of Clean Coal Technology Program, Vol. 1, 1995, pp. 92-99.

[21]   P. Glarborg and L. Bentzen, “Chemical Effects of a High CO2 Concentration in Oxy-Fuel Combustion of Methane,” Energy & Fuels, Vol. 22, No. 1, 2008, pp. 291-296. doi:10.1021/ef7005854

[22]   Y. Qiao, L. Zhang and E. Binner, “An Investigation of the Causes of the Difference in Coal Particle Ignition Temperature between Combustion in Air and in O2/CO2,” Fuel, Vol. 89, No. 11, 2011, pp. 3381-3387. doi:10.1016/j.fuel.2010.05.037

[23]   L. Wu, Y. Qiao, B. Gui and M. Xu, “Effects of Chemical Forms of Alkali and Alkaline Earth Metallic Species on the Char Ignition Temperature of a Loy Yang Coal under O2/N2 Atmosphere,” Energy & Fuels, Vol. 26, No. 1, 2012, pp. 112-117. doi:10.1021/ef2011386

[24]   F. Liu, H. Guo and G. Smallwood, “The Chemical Effect of CO2 Replacement of N2 in Air on the Burning Velocity of CH4 and H2 Premixed Flames,” Combustion & Flame, Vol. 133, No. 4, 2003, pp. 495-497.

[25]   F. Liu, H. Guo, G. Smallwood and O. Gulder, “The Chemical Effects of Carbon Dioxide as an Additive in an Ethylene Diffusion Flame: Implications for Soot and NOx Formation,” Combustion & Flame, Vol. 125, No. 1-2, 2001, pp. 778-787. doi:10.1016/S0010-2180(00)00241-8

[26]   A. Masri, R. Dibble and R. Barlow, “Chemical Kinetic Effects in Nonpremixed Flames of H2/CO2 Fuel,” Combustion & Flame, Vol. 91, No. 3-4, 1992, pp. 285-309. doi:10.1016/0010-2180(92)90059-X

 
 
Top