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A REVIEW ON THE USAGE OF BIOCHAR AS AN ALTERNATIVE REDUCTANT IN THE PYROMETALLURGICAL TREATMENT OF ORES
Abstract
Carbon emission has increasingly become a topic of the day. Carbothermic reduction processes and energy generating units have for years used generic carbonaceous materials contributing to high carbon pollution. Ongoing investigations are showing good prospects. This paper corroborates a comprehensive review on the potential of biochar as an innovative and sustainable alternative to traditional carbon sources in pyrometallurgical processes, addressing the environmental ithreats caused by fossil fuel use, such as greenhouse gas emissions and global warming, and the urgent need for greener reductants in metallurgical operations. Derived from various biomass sources through pyrolysis, biochar exhibits unique chemical and physical properties that make it a promising reductant in high-temperature metallurgical operations, particularly in ferroalloy production and metal recovery from slags. The review delves into the characterization of biochar, examining its chemical composition, functional groups, and physical attributes such as high surface area, porosity, and thermal stability. These properties contribute to biochar's enhanced reactivity and efficiency in reduction processes. Multiple studies have demonstrated biochar's superiority over conventional reductants like coke and coal in various applications, including ferrosilicon production, copper slag cleaning, and iron ore reduction. Biochar's porous structure facilitates better gas-solid interactions and diffusion of reducing gases, leading to more uniform and complete reduction reactions. Its higher reactivity, lower activation energy, and potential catalytic effects from inherent mineral matter further enhance its performance in pyrometallurgical processes. The review also highlights the environmental benefits of using biochar, a renewable resource, in reducing the carbon footprint of metallurgical operations. However, the effectiveness of biochar can vary depending on its source material and production conditions, necessitating careful selection and potential tailoring for specific applications. Overall, this review underscores the significant potential of biochar to revolutionize pyrometallurgical processes, offering improved efficiency, lower energy consumption, and environmental sustainability in the metallurgical industry. This paper review only wood and woody biomass as well as herbaceous biomass are reviewed and discussed.
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References22
Saidur, R., Abdelaziz, E.A., Demirbas, A., Hossain, M.S. and Mekhilef, S., A review on biomass as fuel for boilers. Renewable and sustainable energy reviews, 15(5), pp.2262-2289, 2011. DOI: 10.1016/j.rser.2011.02.015
Bilgili, F., Kocak, E., Bulut, U. and Kuskaya, S., Can biomass energy be an efficient policy tool for sustainable development. Renewable and Sustainable Energy Reviews, 71, pp.830-845, 2017. DOI: 10.1016/j.rser.2016.12.109
Petrie, B., A case for biomass. International Institute for Environment and Development, London, 2014.
Toklu, E., Biomass energy potential and utilization in Turkey. Renewable Energy, 107, pp.235-244, 2017. DOI: 10.1016/j.renene.2017.02.008
Ragauskas, A.J., Williams, C.K., Davison, B.H., Britovsek, G., Cairney, J., Eckert, C.A., Frederick Jr, W.J., Hallett, J.P., Leak, D.J., Liotta, C.L. and Mielenz, J.R., The path forward for biofuels and biomaterials. science, 311(5760), pp.484-489, 2006. DOI: 10.1126/science.1114736
Tursi, A., A review on biomass: importance, chemistry, classification, and conversion. Biofuel Research Journal, 6(2), pp.962-979, 2019. DOI: 10.18331/brj2019.6.2.3
Malico, I. and Goncalves, A.C., Sources and Distribution of Forest Biomass for Energy. In Forest Bioenergy: From Wood Production to Energy Use (pp. 25-52). Cham: Springer International Publishing, 2024. DOI: 10.1007/978-3-031-48224-3_2
Ehite, E.H., Abdoulmoumine, N., Woody and Herbaceous Biomass Feedstocks and Their Physical, Chemical, and Energy Properties. In: Bisaria, V. (eds) Handbook of Biorefinery Research and Technology. Springer, Dordrecht. DOI: 10.1007/978-94-007-6724-9_55-1, 2024. https://doi.org/10.1007/978-94-007-6308-1_55
Anderson, W.F., Sarath, G., Edme, S., Casler, M.D., Mitchell, R.B., Tobias, C.M., Hale, A.L., Sattler, S.E. and Knoll, J.E., Dedicated herbaceous biomass feedstock genetics and development. BioEnergy Research, 9, pp.399-411, 2016. DOI: 10.1007/s12155-015-9709-8
K�Otuto, G.O., Otieno, D.O., Seo, B., Ogindo, H.O. and Onyango, J.C., Carbon dioxide exchange and biomass productivity of the herbaceous layer of a managed tropical humid savanna ecosystem in western Kenya. Journal of Plant Ecology, 6(4), pp.286-297, 2013. DOI: 10.1093/jpe/rts038
Fahmy, T.Y., Fahmy, Y., Mobarak, F., El-Sakhawy, M. and Abou-Zeid, R.E., Biomass pyrolysis: past, present, and future. Environment, Development and Sustainability, 22, pp.17-32, 2020. DOI: 10.1007/s10668-018-0200-5
Grzegorz C., "Pyrolysis and Gasification of Biomass and Waste" Energies 15, no. 19: 7299. DOI: 10.3390/en15197299, 2022.
Kan, T., Strezov, V. and Evans, T.J., Lignocellulosic biomass pyrolysis: A review of product properties and effects of pyrolysis parameters. Renewable and sustainable energy reviews, 57, pp.1126-1140, 2016. DOI: 10.1016/j.rser.2015.12.185
Iscen, A., Oznacar, K., Tunc, K.M. and Gunay, M.E., Exploring the critical factors of biomass pyrolysis for sustainable fuel production by machine learning. Sustainability, 15(20), p.14884, 2023. DOI: 10.3390/su152014884
Nyoni, B., Duma, S., Shabangu, S.V. and Hlangothi, S.P., Comparison of the slow pyrolysis behavior and kinetics of coal, wood and algae at high heating rates. Natural Resources Research, 29, pp.3943-3955, 2020. DOI: 10.1007/s11053-020-09687-3
Karkach, B., Tahiri, M., Haibi, A., Bouya, M. and Kifani-Sahban, F., Review on Fast Pyrolysis of Biomass for Biofuel Production from Date Palm. Applied Sciences, 13(18), p.10463, 2023. DOI: 10.3390/app131810463
Ighalo, J.O., Iwuchukwu, F.U., Eyankware, O.E., Iwuozor, K.O., Olotu, K., Bright, O.C. and Igwegbe, C.A., Flash pyrolysis of biomass: a review of recent advances. Clean Technologies and Environmental Policy, 24(8), pp.2349-2363, 2022. DOI: 10.1007/s10098-022-02339-5
Fan, X.H., Deng, Q., Gan, M. and Wang, H.B., Effect of biochar as reductant on magnetizing-roasting behavior of pyrite cinder. Journal of Iron and Steel Research International, 22(5), pp.371-376, 2015. DOI: 10.1016/s1006-706x(15)30014-5
Kayombo, G and MK Wa Kalenga, Palm nutshell biochar quality correlation with pyrolysis temperature, Proceedings SGEM Vienna Green, Vienna, Austria, pp. 101-108, 2022. DOI: 10.5593/sgem2022V/4.2/s18.13
Dornig, C., Hanke, G. and Antrekowitsch, J., Utilization of Charcoal Obtained from Woody Biomass in Metallurgical Processes Based on Solid�Gas Reactions. Metals, 14(5), p.592, 2024. DOI: 10.3390/met14050592
Chuanchai, A. and Wu, K.T., Potential of Pinewood Biochar as an Eco-Friendly Reducing Agent in Iron Ore Reduction. ACS omega, 9(12), pp.14279-14286, 2024. DOI: 10.1021/acsomega.3c09691
Chen, M., Sukhomlinov, D.; Taskinen, P.; Hamuyuni, J., Michallik, R.M., Lindgren, M. and Jokilaakso, A., Recovery of Metals from Copper Smelting Slag Using Coke and Biochar. Journal of Sustainable Metallurgy, 10(1), pp.360-374, 2024. DOI: 10.1007/s40831-024-00793-7
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