| 가속탄산화를 통한 Ca-rich Waste Mineral의 정량적인 CO2 고용량 평가 |
| 남성영, 엄남일1, 안지환 |
한국지질자원연구원 광물자원연구본부
1국립환경과학원 자원순환연구과 |
| Quantitative Evaluation of CO2 Sequestration in Ca-rich Waste Mineral for Accelerated Carbonation |
| Seong-Young Nam, Nam-Il Um1, Ji-Whan Ahn |
Korea Institute of Geoscience and Mineral Resources (KIGAM)
1National Institute of Environmental Research |
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| ABSTRACT |
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Accelerated carbonation is a technique that can be used as a CCS technology for $CO_2$ sequestration of approximately 5~20% in a stable solid through the precipitation of carbonate. An alkaline inorganic waste material such as ash, slag, and cement paste are generated from incinerators, accelerated carbonation offers the advantage of lower transport and processing costs at the same generation location of waste and $CO_2$. In this study, we evaluated an amount of $CO_2$ sequestration in various types of inorganic alkaline waste processed by means of accelerated carbonation. A quantitative evaluation of $CO_2$ real sequestration based on a TG/DTA analysis, the maximum 118.88 $g/kg_{-waste}$ of $CO_2$ in paper sludge fly ash, the maximum 134.46 $g/kg_{-waste}$ of $CO_2$ in municipal solid waste incinerator bottom ash, the maximum 9.72 $g/kg_{-waste}$ of $CO_2$ in industrial solid waste incinerator fly ash, and the maximum $18.19g/kg_{-waste}$ of $CO_2$ in waste cement paste. |
| Key words:
Alkaline inorganic wastes, $CO_2$ sequestration, Accelerated carbonation |
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