Browse > Article
http://dx.doi.org/10.15231/jksc.2016.21.4.039

Investigation on Combustion Characteristics of Pressurized Oxy-fuel Combustion System using Low Calorific Value Syngas  

Kim, Dong-hee (Korea Institute of Industrial Technology)
Lee, Young-jae (Korea Institute of Industrial Technology)
Yang, Won (Korea Institute of Industrial Technology)
Publication Information
Journal of the Korean Society of Combustion / v.21, no.4, 2016 , pp. 39-47 More about this Journal
Abstract
The aims of this research were to investigate combustion characteristics of lab-scale pressurized oxy-fuel combustion(POFC) system. In this study, the reactor, 800 mm long, was equipped with co-axial burner. Low calorific value syngas that is composed of mainly CO and $H_2$ was used as fuel whereas pure oxygen was used as an oxidant. Thermal heat input to the reactor varied from 2.6 kW to 6.1 kW. The reactor pressure also increases from atmospheric up to 15 bar. The results show that as the pressure increase, the temperature of reactor decreases on the whole in all cases. A significant temperature drop was observed especially at the bottom section of the reactor that exist flame. In addition, the flame instability increases as the pressure increases. Furthermore $NO_x$ emissions increases from atmospheric up to 2 bar. However beyond 2 bar, $NO_x$ emission reduces as pressure increases. Lastly $NO_2$ ratio in $NO_x$ also increases as pressure increases.
Keywords
Pressurized oxy-fuel combustion; Low calorific value Syngas; $NO_x$ emission; NO oxidation; MILD combustion; Flameless combustion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 S.M. Choi, Conceptual Design of 100 MWe Oxy-coal Power Plant-Youngdong Project, J. Korean Soc. Combust., 17(3) (2012) 30-45.
2 S.H. Lee, K.Y. Huh, Comparison of the Combustion Characteristics Between Air Combustion and Oxy-combustion with $CO_2$ Recirculation, J. Korean Soc. Combust., 13(3) (2008) 24-32.
3 S.C. Kim, Oxy-fuel Combustion Technology, Journal of the KSME, 50(9) (2010) 34-38.
4 J.S. Hong, G. Chaudhry, J.G. Brisson, R. Field, M. Gazzino, A.F. Ghoniem, Analysis of Oxy-fuel Combustion Power Cycle Utilizing a Pressurized Coal Combustor, Energy, 34 (2009) 1332-1340.   DOI
5 R. Soundararajan, T. Gundersen, Coal Based Power Plants using Oxy-combustion for $CO_2$ Capture: Pressurized Coal Combustion to Reduce Capture Penalty, Applied Thermal Engineering, 61 (2013) 115-122.   DOI
6 H. Zebian, M. Gazzino, A. Mitsos, Multi-variable Optimization of Pressurized Oxy-coal Combustion, Energy, 38 (2012) 37-57.   DOI
7 J. Hong, R. Field, M. Gazzino, A.F. Ghoiem, Operating Pressure Dependence of the Pressurized Oxy-fuel Combustion Power Cycle, Energy, 35 (2010) 5391-5399.   DOI
8 Advanced Combustion Systems: Technology Program Plan, United States Department of Energy, 2013.
9 ITEA Flameless Technology, www.iteaspa.it.
10 J.A. Lasek, M. Janusz, J. Zuwala, K. Glod, A. Iluk, "Oxy-fuel Combustion of Selected Solid Fuels under Atmospheric and Elevated Pressures", Energy, 62 (2013) 105-112.   DOI
11 J.A. Lasek, K. Glod, M. Janusz, K. Kazalski, J. Zuwala, Pressurized Oxy-fuel Combustion: A Study of Selected Parameters, Energy Fuels, 26 (2012) 6492-6500.   DOI
12 ThyssenKrupp Industrial Solutions, Gasification Technologies, 2014.
13 H.G. Darabkhani, Y. Zhang, Methane Diffusion Flame Dynamics at Elevated Pressures, Combust. Sci. and Tech, 182 (2010) 231-251.   DOI
14 S. Bittanti, L. Calloni, A.D. Marco, V. Prandoni, F. Zamponi, Pressurized Oxy-coal Mild Combustion for Clean-coal Technology, IFAC Proceedings Volumes, 43 (2010) 80-85.
15 M. Rasul, Thermal Power Plants, InTech, Croatia, 2012, 43-64.
16 C.H. Hwang, S.W. Baek, H.Y. Kim, Numerical Study of MILD Combustion Characteristics Change with Variation of Burner Configurations, 39th KOSCO symposium, 2009, 289-295.
17 United States Environmental Protection Agency, Nitrogen Oxides (NOx), Why and How They Are Controlled, 1999.
18 S. Ajdari, F. Normann, K. Andersson, F. Johnsson, Gas Phase Oxidation of $SO_2$ by $NO_2$ in Pressurized Flue Gas Systems-An Experimental Investigation, 3rd Oxyfuel Combustion Conference, 9th-13th September 2013.
19 F. Normann, E. Jansson, T. Petersson, K. Andersson, Nitrogen and Sulphur Chemistry in Pressurised Flue Gas Systems: A Comparison of Modelling and Experiments, International Journal of Greenhouse Gas Control, 12 (2013) 26-34.   DOI