ENHANCED COMBUSTION AND GASIFICATION OF BIOMASS VIA LOW-TEMPERATURE PRESSURIZED AIR OXIDATION
Enhancing Biomass Conversion via Pressurized Air Oxidation
DOI:
https://doi.org/10.55766/sujst10417Keywords:
Pressurized air oxidation, Low temperature treatment, Biomass upgrading, Combustion, GasificationAbstract
This study investigated the combustion and gasification behaviors of biomass enhanced through a low - temperature pressurized air oxidation process - an approach developed by the authors. Rice straw (RS) and its upgraded form (Upgraded RS), treated at 250°C under pressures of 0.1 and 1.0 MPa, were assessed. The Upgraded RS exhibited significantly altered combustion and gasification behaviors compared to raw RS. Thermogravimetric analysis (TGA) showed a notably faster char combustion rate, although this rate slightly decreased with increasing treatment pressure. Under CO₂ gasification, the yield of fuel gas - particularly CO - was higher for the Upgraded RS and increased with pressure. Kinetic parameters calculated using the global kinetic model indicated lower activation energies for the Upgraded RS, suggesting enhanced thermal reactivity. An increase in surface area from 1.16 to 17.02 m2/g due to treatment pressure may partly explain the accelerated reaction rates. These findings underscore the potential of pressurized air oxidation as an effective biomass upgrading method for thermochemical applications.
References
Chen, D., Yin, L., Wang, H., and He, P. (2015). Combustion characteristics and kinetic analysis of biomass based on thermogravimetric analysis. Energy Conversion and Management, 101, 644-650. https://doi.org/10.1016/j.enconman.2015.06.026
Jadsadajerm, S., Muangthong-on, T., Wannapeera, J., Ohagaki, H., Miura, K., and Worasuwannarak, N. (2018a). Degradative solvent extraction of biomass using petroleum-based solvents. Bioresource Technology, 260, 169-176. https://doi.org/10.1016/j.biortech.2018.03.124
Jadsadajerm, S., Miura, K., and Worasuwannarak, N. (2018b). Solvent recycling operation of the degradative solvent extraction of biomass to minimize the amount of solvent required. Energy and Fuels, 32(11), 11555-11563. https://doi.org/10.1021/acs.energyfuels.8b02577
Lee, B.-H., Trinh, V., and Jeon, C.-H. (2021). Effect of torrefaction on thermal and kinetic behavior of kenaf during its pyrolysis and CO₂ gasification. ACS Omega, 6(14), 9920-9927. https://doi.org/10.1021/acsomega.1c00737
Liplap, P., Payormhorm, J., Chunti, C., Hinsui, T., Arjharn, W., Worasuwannarak, N., Laosiripojana, N., and Wannapeera, J. (2022). Impacts of air oxidation pretreatment under pressure on biomass properties. In Proceedings of the 8th International Conference on Sustainable Energy and Environment (SEE 2022): The Road to Net-Zero-Energy Transition Challenges and Solutions (7-9 November 2022, Bangkok, Thailand).
Luo, Z., and Agraniotis, M. (2017). Low-rank coals for power generation, fuel and chemical production. Elsevier.
Mott, R. A., and Spooner, C. E. (1940). The calorific value of carbon in coal: The Dulong relationship. Fuel in Science and Practice, 19, 226-231, 242-251.
Mysyk, R., Gao, Q., Raymundo-Piñero, E., and Béguin, F. (2012). Microporous carbons finely tuned by cyclic high-pressure low-temperature oxidation and their use in electrochemical capacitors. Carbon, 50(9), 3367-3374. https://doi.org/10.1016/j.carbon.2012.01.064
Pimchuai, A., Dutta, A., and Basu, P. (2010). Torrefaction of agricultural residue to enhance combustible properties. Energy and Fuels, 24, 4638-4645. https://doi.org/10.1021/ef901168f
Prins, M. J., Ptasinski, K. J., and Janssen, J. J. G. (2006). More efficient biomass gasification via torrefaction. Energy, 31, 3458-3470. https://doi.org/10.1016/j.energy.2006.03.008
Setkit, N., Li, X., Ya, H., and Worasuwannarak, N. (2020). Torrefaction behavior of hot-pressed pellets prepared from leucaena wood. Bioresource Technology, 321, Article 124502.
Setkit, N., Li, X., Ya, H., and Worasuwannarak, N. (2021). Torrefaction under mechanical pressure of 10-70 MPa at 250°C and its effect on pyrolysis behaviours of leucaena wood. Bioresource Technology, 338, Article 125503. https://doi.org/10.1016/j.biortech.2021.125503
Shen, D. K., Gu, S., Luo, K. H., Bridgwater, A. V., and Fang, M. X. (2009a). Kinetic study on thermal decomposition of woods in oxidative environment. Fuel, 88, 1024-1030. https://doi.org/10.1016/j.fuel.2008.10.034
Shen, D., Gu, S., Luo, K. H., Wang, S., and Fang, M. X. (2009b). Kinetics of biomass pyrolysis: A review. Bioresource Technology, 100(24), 6630-6637.
Shen, D., Gu, S., Luo, K. H., Wang, S., and Fang, M. X. (2009b). Kinetics of biomass pyrolysis: A review. Bioresource Technology, 100(24), 6630-6637. https://doi.org/10.1016/j.biortech.2010.09.081
Shang, J. B., Lin, J., and Zhao, G. J. (2018). Preparation and characterization of wood-based pre-oxidized precursors and activated carbon microspheres. BioResources, 13(4), 7983-7997. https://doi.org/10.15376/biores.13.4.7983-7997
Sun, Y., Tong, S., Li, X., Wang, F., Hu, Z., Dacres, O. D., Edreis, E. M. A., Worasuwannarak, N., Sun, M., Liu, H., Hu, H., Luo, G., and Yao, H. (2020). Gas-pressurized torrefaction of biomass wastes: The optimization of pressurization condition and the pyrolysis of torrefied biomass. Bioresource Technology, 319, Article 124216. https://doi.org/10.1016/j.biortech.2020.124216
Wannapeera, J., and Worasuwannarak, N. (2012a). Upgrading of woody biomass by torrefaction under pressure. Journal of Analytical and Applied Pyrolysis, 96, 173-180. https://doi.org/10.1016/j.jaap.2012.04.002
Wannapeera, J., and Worasuwannarak, N. (2015). Examinations of chemical properties and pyrolysis behaviors of torrefied woody biomass prepared at the same torrefaction yields. Journal of Analytical and Applied Pyrolysis, 115, 279-287. https://doi.org/10.1016/j.jaap.2015.08.007
Wannapeera, J., Fungtammasan, B., and Worasuwannarak, N. (2011). Effects of temperature and holding time during torrefaction on the pyrolysis behaviors of woody biomass. Journal of Analytical and Applied Pyrolysis, 92(1), 99-105. https://doi.org/10.1016/j.jaap.2011.04.010
Wannapeera, J., Li, X., Worasuwannarak, N., Ashida, R., and Miura, K. (2012b). Production of high-grade carbonaceous materials and fuel having similar chemical and physical properties from various types of biomass by degradative solvent extraction. Energy and Fuels, 26, 4521-4531. https://doi.org/10.1021/ef3003153
