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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 878Enhanced Steelmaking Slag Mineral Carbonation in...

Enhanced Steelmaking Slag Mineral Carbonation in Dilute Alkali Solution

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Abstract:

Steelmaking slag mineral carbonation is a possible technology for the reduction of carbon dioxide (CO₂) emissions to the atmosphere, which has been studied both in aqueous and dilute alkali medium. A set of variables, the stirring speed, reaction time, alkali to slag ratio and reaction temperature, were systematically investigated. The results indicated that reaction time, alkali to slag ratio and reaction temperature were the major factors for CO₂ mineral sequestration. Under the optimal conditions with the alkali to slag ratio of 4 % at 80 °C, 16.64 g CO₂can be sequestrated in per 100g steel slag and both calcite and aragonite were generated. This work would be of significance to understand the reaction mechanism deeply and provide valuable information for further study in this field.

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Periodical:

Advanced Materials Research (Volume 878)

Pages:

244-253

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.878.244

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Online since:

January 2014

Authors:

Kai Pan, Hui Quan Li, Chen Ye Wang, Wei Jun Bao, Kelin Huang, Dan Kui Liao

Keywords:

Carbon Dioxide, Carbonation, Sodium Hydroxide, Steelmaking Slag

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