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http://dx.doi.org/10.9713/kcer.2012.50.5.843

Method for Improvement of Reduction Reactivity at High Temperature in a Chemical-Looping Combustor  

Ryu, Ho-Jung (Greenhouse Gas Center, Korea Institute of Energy Research)
Park, Sang-Soo (Greenhouse Gas Center, Korea Institute of Energy Research)
Lee, Dong-Ho (Greenhouse Gas Center, Korea Institute of Energy Research)
Choi, Won-Kil (Greenhouse Gas Center, Korea Institute of Energy Research)
Rhee, Young-Woo (Graduate School of Green Energy Technology, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.50, no.5, 2012 , pp. 843-849 More about this Journal
Abstract
When we use NiO based particle as an oxygen carrier in a chemical looping combustion system, the fuel conversion and the $CO_2$ selectivity decreased with increasing reaction temperature within high temperature range (> $900^{\circ}C$) due to the increment of exhaust CO concentration from reduction reactor. To improve reduction reactivity at high temperature, the applicable metal oxide component was selected by calculation of the equilibrium CO concentration of metal oxide components. After that, feasibility of reduction reactivity improvement at high temperature was checked by using solid mixture of the selected metal oxide particle and NiO based oxygen carrier. The reactivity was measured and investigated using batch type fluidized bed. The solid mixture of $Co_3O_4/CoAl_2O_4$(10%) and OCN706-1100(90%) showed higher fuel conversion, higher $CO_2$ selectivity and lower CO concentration than OCN706-1100(100%) cases. Consequently, we could conclude that improvement of reduction reactivity at high temperature range by adding some $Co_3O_4$ based oxygen carrier was feasible.
Keywords
Chemical-Looping Combustion; Oxygen Carrier; Syngas; Solid Mixture; Reduction Reactivity Improvement;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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1 Han, G. B., Park, N. K., Ryu, S. O. and Lee, T. J., "The Reactivity for the $SO_{2}$ Reduction with CO and $H_{2}$ over Sn-Zr Based Catalysts," Korean Chem. Eng. Res.(HWAHAK KONGHAK), 44(4), 356-362(2006).   과학기술학회마을
2 Linderholm, C., Mattisson, T. and Lyngfelt, A., "Long-term Integrity Testing of Spray-dried Particles in a 10 kW Chemical-looping Combustor Using Natural Gas as Fuel," Fuel, 88, 2083-2096 (2009).   DOI   ScienceOn
3 Linderholm, C., Jerndal, E., Mattisson, T. and Lyngfelt, A., "Investigation of NiO-based Mixed Oxides in a 300-W Chemical- Looping Combustor," Chem. Eng. Res. Des., 88, 661-672 (2010).   DOI   ScienceOn
4 Ryu, H. J. and Jin, G. T., "Criteria for Selection of Metal Component in Oxygen Carrier Particles for Chemical-looping Combustor," Korean Chem. Eng. Res. (HWAHAK KONGHAK), 42(5), 588-597(2004).   과학기술학회마을
5 Baek, J. I., Ryu, J. H., Lee, J. B., Eom, T. H., Kim, K. S., Yang, S. R. and Ryu, C. K., "Highly Attrition Resistant Oxygen Carrier For Chemical Looping Combustion," Energy Procedia, 4, 349-355(2011).   DOI   ScienceOn
6 Ryu, H. J., Kim, K. S., Park, Y. S. and Park, M. H., "Natural Gas Combustion Characteristics of Mass Produced Oxygen Carrier Particles for Chemical-looping Combustor In a Batch Type Fluidized Bed Reactor," Trans. of the Korean Hydrogen and New Energy Society, 20(2), 151-160(2009).   과학기술학회마을
7 Ryu, H. J. and Jin, G. T., "Reactivity and Attrition Resistance of Three Oxygen Carrier Particles for Chemical-looping Combustor," Trans. of the Korean Hydrogen and New Energy Society, 15(3), 208-219(2004).   과학기술학회마을
8 Ryu, H. J., Shun, D., Bae, D. H. and Park, M. H., "Syngas Combution Characteristics of Four Oxygen Carrier Particles for Chemical- looping Combustion in a Batch Fluidized Bed Reactor," Korean J. Chem. Eng., 26(2), 523-527(2009).   DOI   ScienceOn
9 Ryu, H. J., "$CO_{2}$-NOx Free Chemical-Looping Combustion Technology," KOSEN report, available on http://www.kosen21.org (2003).
10 Ryu, H. J., Kim, Y. J., Park, Y. S. and Park, M. H., "Reaction Characteristic of Coal and Oxygen Carrier Particle in a Thermogravimetric Analyzer," Trans. of the Korean Hydrogen and New Energy Society, 22(2), 213-222(2011).
11 Ryu, H. J., Hyun, J. S., Kim, Y. J., Park, Y. S. and Park, M. H., "Chemical Looping Combustion Characteristics of Coal and Char in a Batch Type Fluidized Bed Reactor," Trans. of the Korean Hydrogen and New Energy Society, 22(6), 884-894(2011).   과학기술학회마을
12 Akai, M., Kagojo, T. and Inoue, M., "Performance Evaluation of Fossil Power Plant with $CO_{2}$ Recovery and Sequestering System," Energy Convers. Mgmt, 36(6-9), 801-804(1995).   DOI   ScienceOn
13 Wolf, J., Anheden, M. and Yan, J., "Comparison of Nickel- and Iron-based Oxygen Carriers in Chemical-Looping Combustion for $CO_{2}$ Capture in Power Generation," Fuel, 84, 993-1006(2005).   DOI   ScienceOn
14 Ishida, M. and Jin, H., "A New Advanced Power-Generation System Using Chemical-Looping Combustion," Energy, 19(4), 415-422(1994).   DOI   ScienceOn
15 Ryu, H. J., Jin, G. T., Jo, S. H. and Bae, D. H., "Comparison of Operating Conditions for Natural Gas Combustion and Syngas Combustion in a 50 kWth Chemical-Looping Combustor," Theor. Appl. Chem. Eng., 12(2), 259(2006).
16 Park, S. S., Lee, D. H., Choi, W. K., Ryu, H. J. and Rhee, Y. W., "Syngas Combustion Characteristics of Oxygen Carrier Particle in a Pressurized Fluidized Bed Reactor," Trans. of the Korean Hydrogen and New Energy Society, 23(1), 83-92(2012).   과학기술학회마을   DOI   ScienceOn
17 Figueroa, J. D., Fout, T., Plasynski, S., Mcilvried, H. and Srivasrava, R. D., "Advances in $CO_{2}$ Capture Technology-The U.S. Department of Energy's Carbon Sequestration Program," Int. J. of Greenhouse Gas Controls, 2, 9-20(2008).   DOI   ScienceOn