Abstract
Spent pot lining (SPL) is a toxic waste material produced during the pot replacement process in the aluminium industry. This paper presents a comprehensive environmental assessment of a case study in the United Arab Emirates (UAE), where SPL from Emirates Global Aluminium (EGA) was used as a feedstock at a cement plant in Ras Al Khaimah, UAE. Three areas of environmental concern were studied: fuel savings and CO2 reductions, changes in NOx emissions, and raw material repurposing and toxic substance destruction. The use of SPL in cement production is shown to yield significant environmental benefits in terms of reducing emissions and coal consumption and destroying toxic substances. These changes are primarily attributed to the fluoride content in SPL creating fluoride fluxing effects that reduce the high temperature requirements of the cement kiln. This initiative bolsters the concept of a circular economy in which different industries collaborate to improve environmental sustainability.
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References
M. Al Jawi and H. Saleh Akasha (2018), Opportunities in using spent pot lining (SPL) in cement kilns, [internal document], Emirates Global Alminum, UAE.
S. Feroz and G. Ram (2016), Feasibility study on spent pot lining (SPL) as raw material in cement manufacture process. Int. J. Environ. Anal. Chem. Vol. 2, No. 2, 2016, 18–26.
Pierre B. Personnet (1999), Treatment and reuse of spent pot lining, An industrial application in a cement kiln,” Light Metals, 1999, 1049–1056.
N. Samec, D. Mikša, and F. Kokalj (2004), Recycling possibilities of spent potlining from the aluminum industry,” Waste Manag. Environ. II, 2004.
Valério Gomes et al. (2005), Co-processing at cement plant of spent potlining from the aluminum industry, Light Metals., 2005, 507–513.
T. V. S. Chidambaram and R. B. Garg (2018), Star Cement production process, [Internal document], Ras Al Khaimah, UAE, 2018.
Makio Yamashita and Hisanobu Tanaka (2011), Low-temperature burnt Portland cement clinker using mineralizer, Cem. Sci. Concrete Technol., No. 65, 2011, 82–87.
O. Dominguez et al. (2010), Characterization using thermomechanical and differential thermal analysis of the sinterization of Portland clinker doped with CaF2, Mater. Charact., Vol. 61, No. 4, 2010, 459–466.
Philippe Dagaut, Peter Glarborg, and Maria U. Alzueta (2008), The oxidation of hydrogen cyanide and related chemistry, Prog. Energy Combust. Sci., Vol. 34, No. 1, 2008, 1–46.
FLSmidth (2003), Burner bible, [workbook], A-1–B-5A.
R. B. Garg and S. Gangadharan (2015), Burnability study of raw materials, [Standard Operating Procedure], Star Cement.
Bill Neuffer and Mike Laney (2007), Alternative control techniques document update - NOx emissions from new cement kilns, United States Environmental Protection Agency, 2007.
Rebecca Battye, Stephanie Walsh, and Judy Lee-Greco (2000), NOx control technologies for cement industry: Final report, United States Environmental Protection Agency, 2000.
A. Tomita, Emissions reduction: NOx/SOx suppression, 1st ed. Elsevier Science, 2001.
Fluent Incorporated (2003), Thermal NOx formation.
Fluent Incorporated (2003), Fuel NOx formation.
Johannes Haus (2014), Evaluation of the NOx formation in a rotary kiln test facility, Chalmers University of Technology, Sweden.
R. W. Peterson, L. C. Blayden, and E. S. Martin (1985), Formation and distribution of cyanide in the lining of aluminum reduction cells, Light Metals 1985, 1411–1426.
Rudolf Keller, C. N. Cochran, and David B. Stofesky (1996), Suppression of cyanide formation in electrolytic cell lining, US5538604A.
Gary Fisher (2002), Methods of destruction of cyanide in cyanide-containing waste, US6596916B1.
J. Brouwer et al. (1996), A model for prediction of selective non-catalytic reduction of nitrogen oxides by ammonia, urea, and cyanuric acid with mixing limitations in the presence of CO, Proceedings of 26th International Symposium on Combustion, Naples, Italy, July 1996, 2117–2124.
Thyssenkrupp Industrial Solutions (Canada) Inc. (2018), Emirates Global Aluminum (EGA) spent pot liner and carbon cathodes - Test programme report, Calgary, AB, Canada.
L. Melanie and G. Calvert (1999), ASTM C150/C150 M - 18 Standard Specifications for Portland Cement, 1–9.
S. Gangadharan (2018), Burnability study MIT - Annexure 2&3, Ras Al Khaimah, UAE.
H. G. Van Oss and A. C. Padovani (2003), Cement manufacture and the environment, Part II: Environmental challenges and opportunities, J. Ind. Ecol., Vol. 7, No. 1, 2003, 93–126.
D. Burchart-Korol et al. (2016), Model of environmental life cycle assessment for coal mining operations, Sci. Total Environ., Vol. 562, 2016, 61–72.
Port of Richard’s Bay, South Africa to Port of Ras Al Khaimah, United Arab Emirates: 4411 nautical miles. [Online Document]. Available: http://ports.com/sea-route/port-of-richards-bay,south-africa/port-of-ras-al-khaimah,united-arab-emirates/.
European Chemical Industry Council (2011), Guidelines for measuring and managing CO2 emission from freight transport operations.
H. N. Psaraftis and C. A. Kontovas (2006), Ship emissions calculator, National Technical University of Athens, 2006. [Online Document]. Available: http://www.martrans.org/emis/.
Erica Bickford (2012), Emissions and air quality impacts of freight transportation, University of Wisconsin-Madison, USA, 2012.
Frank Dünnelbeil and Udo Lambrecht (2012), Fuel efficiency and emissions of trucks in Germany: An overview, IFEU-Institute Heidelberg, 2012.
National greenhouse accounts (NGA) factors (2008), Department of the Environment and Energy, Australia.
Emission estimation technique manual for explosive detonation and firing ranges, Department of the Environment and Energy, Australia, 1999.
Natural gas and the environment (2004), [Online Document]. Available: http://www.naturalgas.org/environment/naturalgas.
A. Q. Jakhrani et al. (2012), Estimation of carbon footprints from diesel generator emissions, 2012 Int. Conf. Green Ubiquitous Technol.
José L. Silveira, João A. de Carvalho, and Iraídes A. de Castro Villela (2007), Combined cycle versus one thousand diesel power plants: pollutant emissions, ecological efficiency and economic analysis, Renew. Sustain. Energy Rev., Vol. 11, No. 3, 2007, 524–535.
DEWA Sustainability Report (2016), Dubai Electricity & Water Authority.
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Jawi, M.A. et al. (2020). Environmental Benefits of Using Spent Pot Lining (SPL) in Cement Production. In: Tomsett, A. (eds) Light Metals 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36408-3_172
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DOI: https://doi.org/10.1007/978-3-030-36408-3_172
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