CO₂ Sequestration of real mine tailings by accelerated carbonation for CCUS technologies

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Ji-Whan Ahn, Thenepalli Thriveni and Seong Young Nam

Korea Institute of Geoscience and Mineral Resources (KIGAM), South Korea

: Expert Opin Environ Biol

Abstract

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Recently, the global researchers focussed on CO₂ sequestration through mineral carbonation because of increasing severe atmospheric CO₂levels that can be emitted from several resources and has lead to concerns about global warming. The possible emerging technology can contribute to the reduction of CO₂ emissions is CO₂ sequestration by mineral carbonation. Atmospheric CO₂ is sequestered with real mine tailings via accelerated carbonation of Mg-bearing minerals. The rate of carbon sequestration at some mine sites appears to be limited by the rate of CO2 supply. If carbonation of bulk tailings were accelerated, large mines may have the capacity to sequester millions of tonnes of CO₂ annually, offsetting mine emissions. Some case studies, the possibilities for the integration of CO₂ mineral sequestration in real mine tailings by accelerated carbonation for CO₂ capture storage and utilization (CCUS) technologies will be presented.

Biography

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Email: ahnjw@kigam.re.kr