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http://dx.doi.org/10.17137/korrae.2015.23.4.086

Study on Torrefaction Characteristics of Solid Biomass Fuel and Its Combustion Behavior  

Lee, Weon Joon (Department of Environmental System Engineering, Chonnam National University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.23, no.4, 2015 , pp. 86-94 More about this Journal
Abstract
Torrefaction is a thermochemical process proceeded at the temperature around $250^{\circ}C$ in an inert gas condition. By torrefaction, the hemicellulose portions contained in biomass are broken down to change into the volatile gas which is removed from biomass eventually. The main purpose of biomass torrefaction is to improve the energy density of the biomass to minimize the transport energy consumption, though the flammability can be elevated for transportation. In this study two types of solid biomass fuel, waste wood and rice straw, were torrefied at various temperature range from $200^{\circ}C$ to $300^{\circ}C$ to evaluate the torrefied biomass characteristics. In addition torrefied biomass were tested to evaluate the combustion characteristics using TGA (Thermogravimetric Analysis). After the torrefaction of biomass, the C/H (carbon to hydrogen ratio) and C/O (carbon to oxygen ratio) were measured for aquisition of bio-stability as well as combustion pattern. Generally C/H ratio implies the soot formation during combustion, and the C/O ratio for bio-stability. By torrefaction temperature at $300^{\circ}C$, C/H ratio and C/O ratio were increased by two times for C/H and three times for C/O. The torrefied biomass showed similar TGA pattern to coal compared to pure biomass; that is, less mass decrease at lower temperature range for torrefied biomass than the pure biomass.
Keywords
Solid Biomass Fuel; Torrefaction; C/H and C/O Ratio; TGA(Thermogravimetric Analysis);
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  • Reference
1 B. Schlamadinger, J. Spitzer, and G.H. Kohlmaier, "Carbon balance of bioenergy from logging residues", Biomass & Bioenergy, 8(4), pp. 221-234(1995).   DOI
2 David Tilman, Jason Hill, and Clarence Lehman, "Carbon-Negative Biofuels from Low-Input High-Diversity Grassland Biomass", Science, 314(5805), pp. 1598-1600. (2006).   DOI
3 Mark J. Prins, Krzysztof J. Ptasinski, Frans J.J.G. Janssen, "Torrefaction of wood: Part 1. - Weight loss kinetics", Journal of Analytical and Applied Pyrolysis, 77(1), pp. 28-34. (2006)   DOI
4 Mark J. Prins, Krzysztof J. Ptasinski, Frans J.J.G. Janssen, "A study of chemical structure of soft and hardwood and wood polymers by FTIR spectroscopy", Journal of Applied Polymer Science, 71(12), pp.1969-1975. (1999).   DOI
5 Zhou, H., Long, Y.Q, Meng, A.H., Li, Q.H., and Zhang, Y.G., "The pyrolysis simulation of five biomass species by hemi-cellulose, cellulose and lignin based on thermogravimetric curves", Thermochimica Acta, 566, pp. 36-43. (2013).   DOI
6 Levente C., Attila L. and Andrea W., "Sonochemically Modified Wheat Straw for Pulp and Papermaking to Increase Its Economical Performance and Reduce Environmental Issue", BioResource, 3(1), pp. 91-97. (2009).
7 George W. Huber, and Avelino Corma, "Synergies between Bio- and Oil Refineries for the Production of Fuels from Biomass", Angewandte Chemie International Edition, 46(38), pp. 7184-7201 (2007).   DOI
8 Ayhan Demirbas, "Combustion characteristics of different biomass fuels", Progress in Energy and Combustion Science, 30(2), pp. 219-230. (2004).   DOI
9 Dereca Watkins, Md. Nuruddin, Mahesh Hosur, Alfred Tcherbi-Narteh, and Shaik Jeelani, "Extraction and characterization of lignin from different biomass resource", Journal of Materials Research and Technology, 4(1), pp. 26-32. (2015).   DOI
10 Li, S. Whitely, N., Xu, W., and Pan, W.P., Characterization of Coal by Thermal Analysis MethodsThermal Analysis Laboratory, Materials Characterization Center, Western Kentucky University (1998).