Morphology of chars of bagasse-coal mixtures: effect of particle size and concentration of bagasse
DOI:
https://doi.org/10.22395/rium.v21n40a4Keywords:
coal, bagasse, morphological analysis, particle size, surface area, devolatilization, synergyAbstract
In this work, the char morphology from coal-sugarcane bagasse with concentrations of 0, 25, 50, 75 and 100 % w/w and particle sizes -0.25 mm and -20 mm was evaluated. The samples were fed to a devolatilization process at 900 °C in a tubular drop reactor (-0.25 mm) and a batch-type fixed bed reactor (-20 mm). The morphology of the char was determined through image analysis. The surface area was evaluated by BET analysis for particle size -0.25 mm. The results showed that for particle sizes -20 mm synergistic effects were obtained towards the generation of reactive morphologies (thin walls + thick walls) with the increase in bagasse concentration. It was found that coal generated a higher concentration of thick and solid wall morphologies.
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References
Inter nat ional Energy Agency ( IEA), 2018. ht t ps: //webs t ore. iea.org/co2-emissions-from-fuel-combustion-2018-overview
E. Vakkilainen, Steam Generation from Biomass: Construction and Design of Large Boilers. 1° ed. Amsterdam, PaÃses Bajos: Butterworth-Heinemann, 2017.
Unidad de Planeación Minero Energética (UPME), Universidad Industrial de Santander, IDEAM, 2011. http://bdigital.upme.gov.co/handle/001/1058
A. Campos, A. Carvajal, C. Chávez, “Cogeneración - Más Que Azúcar , Una Fuente de EnergÃa Renovable Para El PaÃsâ€, Asocaña, Cali, Colombia, mayo de 2017.
C. Wang, F. Wang, Q. Yang y R. Liang, “Thermogravimetric studies of the behavior of wheat straw with added coal during combustionâ€, Biomass and Bioenergy, vol. 33, no. 1, pp. 50–56, 2009.
E. Biagini, F. Lippi, L. Petarca y L. Tognotti, “Devolatilization rate of biomasses and coalbiomass blends: An experimental investigationâ€, Fuel, vol. 81, no. 8, pp. 1041–1050, 2002.
R. Bilbao, J. Mastral, M. Aldea y J. Ceamanos, “Kinetic study for the thermal decomposition of cellulose and pine sawdust in an air atmosphereâ€, Journal of Analytical and Applied Pyrolysis, vol. 39, no. 1, pp. 53–64, 1997.
C. Avila, P. Cheng, T. Wu y E. Lester, “Morphology and Reactivity Characteristics of Char Biomass Particlesâ€, Bioresource Technology-Elsevier, vol. 102, no. 8, pp. 5237–5243, 2011.
C. Di-Blasi, “Combustion and Gasification Rates of Lignocellulosic Charsâ€, Progress in Energy and Combustion Science, vol. 35, no. 2, pp. 121–140, 2009.
E. Fisher, C. Dupont, L. Darvell, J. Commandré, A. Saddawi, J. Jones, M. Grateau, T. Nocquet y S. Salvador, “Combustion and Gasification Characteristics of Chars from Raw and Torrefied Biomassâ€, Bioresource Technology, vol. 119, pp. 157–165, 2012.
J. Wang, S. Zhang, X. Guo, A. Dong, C. Chen, S. Xiong, Y. Fang y W. Yin, “Thermal Behaviors and Kinetics of Pingshuo Coal/Biomass Blends during Copyrolysis and Cocombustionâ€, Energy and Fuels, vol. 26, no. 12, pp. 7120–7126, 2012.
C. Pang, E. Lester y T. Wu, “Influence of Lignocellulose and Plant Cell Walls on Biomass Char Morphology and Combustion Reactivity†Biomass and Bioenergy, vol. 119, pp. 480–491, 2018.
Ch. Guizani, M. Jeguirim, S. Valin, L. Limousy y S. Salvador, “Biomass Chars: The Effects of
Pyrolysis Conditions on Their Morphology, Structure, Chemical Properties and Reactivityâ€, Energies, vol. 10, no. 6, pp. 796, 2017.
Z. Wu, W. Yang y B. Yang, “Thermal Characteristics and Surface Morphology of Char during C o-Pyrolysis of L ow-Rank C oal Blended w ith M icroalgal Biomass: E ffects of Nannochloropsis and Chlorellaâ€, Bioresource Technology, vol. 249, pp. 501-509, 2018.
E. Lester, et al., “A Proposed Biomass Char Classification Systemâ€, Fuel Processing Technology, vol. 232, pp. 845-854, 2018.
S. Krerkkaiwan, C. Fushimi, A. Tsutsumi y P. Kuchonthara, “Synergetic Effect during Co-Pyrolysis/Gasification of Biomass and Sub-Bituminous Coalâ€, Fuel Processing Technology, vol. 115, pp. 11–18, 2013.
E. GarcÃa, “Reactividad de carbones mezclados mediante caracterización morfológica de carbonizadosâ€, tesis de maestrÃa, Escuela de IngenierÃa QuÃmica, Universidad del Valle, Cali, Colombia, 2013.
C. Castro, V. Sanabria, “MorfologÃa de carbonizados procedentes de mezclas carbón-bagazo de caña en un proceso de pirólisisâ€, tesis de pregrado, Escuela de IngenierÃa QuÃmica, Universidad del Valle, Cali, Colombia, 2015.
J. Paredes, L. Sinisterra, “MorfologÃa de carbonizados de mezclas carbón-bagazo obtenidos en atmósfera de N2 y CO2â€, tesis de pregrado, Escuela de IngenierÃa QuÃmica, Universidad del Valle, Cali, Colombia, 2017.
E. Lester et al., “The Procedure Used to Develop a Coal Char Classification—Commission III Combustion Working Group of the International Committee for Coal and Organic Petrologyâ€, International Journal of Coal Geology, vol. 81, no. 4, pp. 333–342, 2010.
J. Shen, S. Zhu, X. Liu, H. Zhang y J. Tan, “The prediction of elemental composition of biomass based on proximate analysisâ€, Energy Conversion and Management, vol. 51, no.5, pp. 983–987, 2010.
M. Chan, J. Jones, M. Pourkashanian y A. Williams, “The Oxidative Reactivity of Coal Chars in Relation to Their Structureâ€, Fuel Processing Technology, vol. 78, no. 13, pp. 1539–1552,
S. Daood, S. Munir, W. Nimmo y B. Gibbs, “Char Oxidation Study of Sugar Cane Bagasse, Cotton Stalk and Pakistani Coal under 1 % and 3 % Oxygen Concentrationsâ€, Biomass and Bioenergy, vol. 34, no. 3, pp. 263–271, 2010.
A. Rojas y J. Barraza, “Pulverized Coal Devolatilisation Predictionâ€, DYNA, Vol. 75, no. 154, pp. 113-122, 2008.
S. Badzioch y P. Hawksley, “Kinetics of Thermal Decomposition of Pulverized Coal Particlesâ€, Industrial and Engineering Chemistry Process Design and Development, vol. 9, no. 4, pp. 521–530, 1970.
R. Barranco, M. Cloke y E. Lester, “The effect of operating conditions and coal type on char reactivity and morphology during combustion in a drop tube furnaceâ€, in The Ninth Australian Coal Science Conference, Brisbane, Australia, 2001.
J. Gibbins, C. Man y K. Pendlebury, “Determination of rapid heating volatile matter contents as a routine testâ€, Combustion Science and Techonology, vol. 93, no. 1, pp. 349-361, 1993.
E. Lester, “The Characterisation of Coals for Combustionâ€, Ph.D. disertación, dept. quÃm. ing., University of Nottingham, Nottingham, Inglaterra, 1994.
M. Carvalho, F. Lockwood, W. Fiveland y C. Papadopoulos, “Combustion technologies for a clean environmentâ€, Environmental Progress, vol. 16, no. 4, 2006.
A. Vyas, T. Chellappa y J. Goldfarb, “Porosity Development and Reactivity Changes of Coal–biomass Blends during Co-Pyrolysis at Various Temperaturesâ€, Journal of Analytical and Applied Pyrolysis, vol. 124, pp. 79–88, 2017.
H. Haykiri y S. Yaman, “Interaction between biomass and different rank coals during copyrolysisâ€, Renewable Energy, vol. 35, no. 1, pp. 288–292, 2010.
Y. Kar, “Bioresource Technology Co-pyrolysis of walnut shell and tar sand in a fixed-bed reactorâ€, Bioresource Technology, vol. 102, no, 20, pp. 9800–9805, 2011.
Ö. Onay, E. Bayram y Ö. Koçkar, «Copyrolysis of Seyitömer−Lignite and Safflower Seed: Influence of the Blending Ratio and Pyrolysis Temperature on Product Yields and Oil Characterization», Energy Fuels, vol. 21, no. 5, pp. 3049-3056, 2007.
D. Park, S. Kim, H. Lee y J. Lee, “Bioresource Technology Co-pyrolysis characteristics of sawdust and coal blend in TGA and a fixed bed reactorâ€, Bioresource Technology, vol. 101, no. 15, pp. 6151–6156, 2010.
D. Vamvuka y S. Sfakiotakis, “Combustion behaviour of biomass fuels and their blends with ligniteâ€, Thermochimica Acta, vol. 526, no. 1–2, pp. 192–199, 2011.
Z. Wu, S. Wang, J. Zhao, L. Chen y H. Meng, “Synergistic effect on thermal behavior during co-pyrolysis of lignocellulosic biomass model components blend with bituminous coalâ€, Bioresource Technology, vol. 169, pp. 220–228, 2014.
H. Junhao et al., “Influence of volatiles-char interactions between coal and biomass on the volatiles released, resulting char structure and reactivity during co-pyrolysisâ€, Energy Conversion and Management, vol. 152, pp. 229-238, 2017.
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