Influence of particle size on the carbonation of stainless steel slag for CO2 storage
By R. Baciocchi, G. Costa, A. Polettini, R. Pomi. 2009
149 citations recorded by the source corpus.
Abstract The main aims of this work were to assess the CO2 storage capacity of different particle size fractions of stainless steel slag subjected to accelerated carbonation under mild operating conditions, to study the influence on reaction kinetics of some of the main operating parameters (temperature, pressure and liquid to solid ratio) and to determine the effects of the process on slag mineralogy and leaching behavior. Maximum CO2 uptakes of 130 g CO2/kg residues were measured for the finest grain size and decreased with particle size owing to differences in reacting species availability and specific surface. Process kinetics proved relatively fast, achieving completion in around 2 hours with a CO2 pressure of 3 bar and an optimal liquid to solid ratio of 0.4; temperature was the parameter that most influenced CO2 uptake, due to its enhancement effect on silicates dissolution.
Subfields: Civil and Structural Engineering, Environmental Engineering, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/6890918d44c334e614e0f474774fb5ce6653c922
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In Civil and Structural Engineering
In Mechanics of Materials
Citations in the corpus
- Effect of mechanical activation on the hydraulic properties of stainless steel slags (2012, background): “The main application fields are in the production of aggregates for road construction purposes, in cement production, in the production of fertilisers, for use as armour stones in hydraulic engineering as well as for internal recycling operations in the steel works [8,13–17].”