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ECN publication
Mineral CO2 sequestration in alkaline solid residues
Published by: Publication date:
ECN Biomass, Coal and Environmental Research 1-12-2004
ECN report number: Document type:
ECN-RX--04-079 Conference Paper
Number of pages: Full text:
6 Download PDF  

Presented at: 7th International Conference on GreenHouse Gas Control Technologies (GHGT-7), Vancouver, Canada, 5-9 september 2004.

Mineral carbonation is a promising sequestration route for the permanent and safe storage of carbon dioxide. In addition to calcium- or magnesium-containing primary minerals, suitable alkaline solid residues can be used as feedstock. The use of alkaline residues has several advantages, such as their availability close to CO2 sources and their higher reactivity for carbonation than primary minerals. In addition, the environmental quality of residues can potentially be improved by carbonation. In this study, key factors of the mineral CO2 sequestration process are identified, their influence on the carbonation process is examined, and environmental properties of the reaction products with regard to their possible beneficial utilization are investigated. The use of alkaline solid residues forms a potentially attractive alternative for the first mineral sequestration plants.

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