ABSTRACT
Biomass is a fuel with a highly volatile content and due to that, pyrolysis as a part of the combustion process, has a dominant role in the overall process development, as well as on final products and the process efficiency. It is of key importance to investigate the influence of the process parameters; as temperature, furnace/reactor environment, fuel properties, type, particle size, geometry, and the structure of the pyrolysis process has an influence regards the design of the combustion/pyrolysis equipment and the final products of the processes. This paper gives some results of the investigation’s related to this problem, mainly focussing on wooden biomass as the most important biomass type, as well as a comparison with relevant documented literature. Besides that, pyrolysis based technologies are one of the key directions in synthetic fuels production based on biomass. Biomass pyrolysis process parameters are crucial in reactor design as well as the quantity and quality of the final products. This paper provides discussion dedicated to this aspect with a focus on slow pyrolysis, targeting charcoal as the key product, and fast pyrolysis, targeting synthetic gas as the key product.
KEYWORDS
PAPER SUBMITTED: 2015-11-29
PAPER REVISED: 2016-05-04
PAPER ACCEPTED: 2016-05-05
PUBLISHED ONLINE: 2016-07-12
THERMAL SCIENCE YEAR
2016, VOLUME
20, ISSUE
Issue 4, PAGES [1209 - 1222]
- Rapagna, S., Mazziotti di Celso, G., Devolatilization of Wood Particles in a Hot Fluidized Bed: Product Yields and Conversion Rates, Biomass and Bioenergy, 32 (2008), 12, pp. 1123-1129
- Venderbosch, R. H., Prins W., Fast Pyrolysis, Themochemical Processing of Biomass, John Wiley & Sons, New York, USA, 2011
- Grieco, E., Baldi, G., Analysis and Modelling of Wood Pyrolysis, Chemical Engineering Science, 66 (2011), 4, pp. 650-660
- Miller, R. J., Bellan, J., Analysis of Reaction Products and Conversion Time in the Pyrolysis of Cellulose and Wood Particles, Combustion Science and Technology, 119 (1996), 1-6, pp. 331-373
- Chan, W. R., et al., Modelling and Experimental Verification of Physical and Chemical Processes During Pyrolysis of a Large Biomass Particle, Fuel, 64 (1985), 11, pp. 1505-1513
- Vamvuka, D., Bio-oil, Solid and Gaseous Biofuels from Biomass Pyrolysis Processes ‒ An Overview, International Journal of Energy Research, 35 (2011), 10, pp. 835-862
- Mohan, D., et al., Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review, Energy & Fuels, 20 (2006), 3, pp. 848-889
- Panwar, N. L., et al., Thermo Chemical Conversion of Biomass – Eco Friendly Energy Routes, Renewable and Sustainable Energy Reviews, 16 (2012), 4, pp. 1801-1816
- Shafizadeh, F., Introduction to Pyrolysis of Biomass, Journal of Analytical and Applied Pyrolysis, 3 (1982), 4, pp. 283-305
- Panwar, N. L., et al., Thermo Chemical Conversion of Biomass – Eco Friendly Energy Routes, Renewable and Sustainable Energy Reviews, 16 (2012), 4, pp. 1801-1816
- Radlein, D., Quignard, A., A Short Historical Review of Fast Pyrolysis of Biomass, Oil and Gas Science and Technology, 68 (2013), 4, pp. 765-783
- Ryu, C., et al., Effect of Fuel Properties on Biomass Combustion: Part I, Experiments ‒ Fuel Type, Equivalence Ratio and Particle Size, Fuel, 85 (2006), 7-8, pp. 1039-1046
- Di Blasi, C., et al., Pyrolytic Behaviour and Products of Some Wood Varietes, Combustion and Flame, 124 (2001), 1-2, pp. 165-177
- Sokele, B., Wood Chemistry (in Bosnian), University of Sarajevo, Sarajevo, 1971
- Bogomolov, B. D., Chemistry of Wood and Basic Chemistry of High Molecular Supstances (in Russian), Lesnaya promishlenost, Moscow, 1973
- Siau, J. F., Transport Processes in Wood, Springer-Verlag Series in Wood Science, 1984
- Reina, J., et al., Kinetic Study of the Pyrolysis of Waste Wood, Ind. Eng. Chem. Res., 37 (1998), 11, pp. 4290-4295
- Gani, A., Naruse, I., Effect of Cellulose and Lignin Content on Pyrolysis and Combustion Characteristics for Several Types of Biomass, Renewable Energy, 32 (2007), 4, pp. 649-661
- Roberts, A. F., A Review of Kinetics Data for the Pyrolysis of Wood and Related Supstances, Combustion and Flame, 14 (1970), 2, pp. 261-272
- Pattanotai, T., et al., Effects of Particle Aspect Ratio on Pyrolysis and Gasification of Anisotropic Wood Cylinder, Fuel, 150 (2015), June, pp. 162-168
- Kansa, E. J., et al., Mathematical Model of Wood Pyrolysis Including Internal Forced Convection, Combustion and Flame, 29 (1977), Feb., pp. 311-324
- Wichman, I. S., Atreya, A., A Simplified Model for the Pyrolysis of Charring Materials, Combustion and Flame, 68 (1987), 3, pp. 231-247
- Alves, S. S., Figueiredo, J. L., A Model for Pyrolysis of Wet Wood, Chemical Engineering Science, 44 (1989), 12, pp. 2861-2869
- Incropera, F. P., DeWitt, D. P., Introduction to Heat Transfer, 3 rd ed., John Wiley & Sons, New York, USA, 1996
- Gvero, P., The Influence of Wood Structure Anisotropy and Fuel Particle Geometry on Pyrolysis Process, 2nd World Conference on Biomas for Energy, Industry and Climate Protection, Rome, Italy, pp. 1082-1085, 2004
- Di Blasi, C., Influences of Physical Properties on Biomass Devolatilization Characteristics, Fuel, 76 (1997), 10, pp. 957-964
- Gvero, P., et al., Effects of Grain Structure and Particle Geometry on Biomass Pyrolysis in the Fluidized Bed and the Freeboard, 2nd South-East European Symposium on FBC, Arandjelovac, Yugoslavia, 1999, pp. 275-283
- Alen, R., et al., Py-GC/AED Studies on the Thermochemical Behavior of Softwood, Journal of Analytical and Applied Pyrolysis, 35 (1995), 2, pp. 259-265
- Chan, W-C. R., et al., Product Formation in the Pyrolysis of Large Wood Particles, in: Fundamentals of Thermochemical Biomass Conversion (Eds. R. P. Overend, T. A. Milne, L. K. Mudge), pp. 219-236, 1985
- Westerhof, R. J. M., et al., Effect of Particle Geometry and Microstructure on Fast Pyrolysis of Beech Wood, Energy Fuels, 26 (2012), 4, pp. 2274-2280
- Babu, B. V., Chaurasia, A. S., Heat Transfer and Kinetics in the Pyrolysis of Shrinking Biomass Particle, Chemical Engineering Science, 59 (2004), 10, pp. 1999-2012
- Bharadwaj, A., et al., Effects of Intraparticle Heat and Mass Transfer on Biomass Devolatilization: Experimental Results and Model Predictions, Energy & Fuels, 18 (2004), 4, pp. 1021-1031
- Kumar, R. R., et al., Shrinkage Characteristics of Casuarina Wood During Devolatilization in a Fluidized Bed Combustor, Biomass Bioenergy, 30 (2006), 2, pp. 153-165
- Sreekanth, M., et al., Transient Thermal Behaviour of a Cylindrical Wood Particle During Devolatilization in a Bubbling Fluidized Bed, Fuel Processing Technology, 89 (2008), 9, pp. 838-850
- Di Blasi, C., et al., Radiative Pyrolysis of Single Moist Wood Particles, Energy & Fuels, 18 (2004), pp. 1021-1031
- Biswas, A. K., Umeki, K., Simplification of Devolatilization Models for Thermally-Thick Particles: Differences between Wood Logs and Pellets, Chemical Engineering Journal, 274 (2015), Aug., pp. 181-191
- Rath, J., et al., Heat of Wood Pyrolysis, Fuel, 82 (2003), 1, pp. 81-91
- Gvero, P., Mathematical Modelling of Biomass Devolatilization Process, Ph. D. thesis, University of Belgrade, 2013
- Lu, H., et al., Effects of Particle Shape and Size on Devolatilization of Biomass Particle, Fuel, 89 (2010), 5, pp. 1156-1168
- Okekunle, P. O., et al., Effect of Biomass Size and Aspect Ratio on Intra-Particle Tar Decomposition during Wood Cylinder Pyrolysis, Journal of Thermal Science and Technology, 7 (2012), 1, pp. 1-15
- Park, W. C., et al., Experimental and Theoretical Investigation of Heat and Mass Transfer Processes During Wood Pyrolysis, Combustion and Flame, 157 (2010), 3, pp. 481-494
- Momeni, M., et al., Experimental Study on Effects of Particle Shape and Operating Conditions on Combustion Characteristics of Single Biomass Particles, Energy & Fuels, 27 (2013), 1, pp. 507-514
- Meier, D., Faix, O., State of the Art of Applied Fast Pyrolysis of Lignocellulosic Materials – A Review, Bioresource Technology, 68 (1999), 1, pp. 71-77
- Bridgwater, A., Biomass Fast Pyrolysis, Thermal Science, 8 (2004), 2, pp. 21-49
- Basu, P., Biomass Gasification, Pyrolysis, and Torrefaction Practical Design and Theory, 2 nd ed., Elsevier, 2013
- Jahirul, M., et al., Biofuels Production through Biomass Pyrolysis ‒ A Technological Review, Energies, 5 (2012), 12, pp. 4952-5001
- Bridgwater, A. V., Review of Fast Pyrolysis of Biomass and Product Upgrading, Biomass and Bioenergy, 38 (2012), Mar., pp. 68-94
- Demirbas, A., Effects of Temperature and Particle Size on Bio-char Yield From Pyrolysis of Agricultural Residues, Journal of Analytical and Applied Pyrolysis, 72 (2004), 2, pp. 243-248
- De Wild, P., Reith, H., Biomass Pyrolysis for Chemicals, Biofuels, 2 (2011), 2, pp. 185-208
- Neves, D., et al., Characterization and Prediction of Biomass Pyrolysis Products, Progress in Energy and Combustion Science, 37 (2011), 5, pp. 611-630