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http://dx.doi.org/10.7844/kirr.2022.31.3.40

Greenhouse Gas Emission Reduction and Economic Benefit Evaluation of Carbon Mineralization Technology using CFBC Ash  

Jung, Euntae (Mineral Processing & Metallurgy Research Center, Resources Utilization Research Division, Korea Institute of Geosciences and Mineral Resources)
Kim, Jeongyun (Mineral Processing & Metallurgy Research Center, Resources Utilization Research Division, Korea Institute of Geosciences and Mineral Resources)
Publication Information
Resources Recycling / v.31, no.3, 2022 , pp. 40-52 More about this Journal
Abstract
This study analyzed the amount of carbon dioxide reduction and economic benefits of detailed processes of CO2 6,000 tons plant facilities with mineral carbonation technology using carbon dioxide and coal materials emitted from domestic circulating fluidized bed combustion power plants. Coal ash reacted with carbon dioxide through carbon mineralization facilities is produced as a complex carbonate and used as a construction material, accompanied by a greenhouse gas reduction. In addition, it is possible to generate profits from the sales of complex carbonates and carbon credits produced in the process. The actual carbon dioxide reduction per ton of complex carbonate production was calculated as 45.8 kgCO2eq, and the annual carbon dioxide reduction was calculated as 805.3 tonCO2, and the benefit-cost ratio (B/C Ratio) is 1.04, the internal rate return (IRR) is 10.65 % and the net present value (NPV) is KRW 24,713,465 won, which is considered economical. Carbon mineralization technology is one of the best solutions to reduce carbon dioxide considering future carbon dioxide reduction and economic potential.
Keywords
Carbon Mineralization; CFBC Power Plant; Economic Analysis; $CO_2$ Reduction;
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