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Recent Developments And Perspectives On The Treatment Of Industrial Wastes By Mineral Carbonation - A Review, Marius Bordor, Rafael M. Santos, Tom Van Gerven, Maria Vlad
Recent Developments And Perspectives On The Treatment Of Industrial Wastes By Mineral Carbonation - A Review, Marius Bordor, Rafael M. Santos, Tom Van Gerven, Maria Vlad
Faculty Publications and Scholarship
Besides producing a substantial portion of anthropogenic CO2 emissions, the industrial sector also generates significant quantities of solid residues. Mineral carbonation of alkaline wastes enables the combination of these two by-products, increasing the sustainability of industrial activities. On top of sequestering CO2 in geochemically stable form, mineral carbonation of waste materials also brings benefits such as stabilization of leaching, basicity and structural integrity, enabling further valorization of the residues, either via reduced waste treatment or landfilling costs, or via the production of marketable products. This paper reviews the current state-of-the-art of this technology and the latest developments in this field. …
Ultrasound-Intensified Mineral Carbonation, Rafael M. Santos, Davy Francois, Gilles Mertens, Jan Elsen, Tom Van Gerven
Ultrasound-Intensified Mineral Carbonation, Rafael M. Santos, Davy Francois, Gilles Mertens, Jan Elsen, Tom Van Gerven
Faculty Publications and Scholarship
Several aspects of ultrasound-assisted mineral carbonation were investigated in this work. The objectives were to intensify the CO2 sequestration process to improve reaction kinetics and maximal conversion. Stainless steel slags, derived from the Argon Oxygen Decarburization (AOD) and Continuous Casting / Ladle Metallurgy (CC/LM) refining steps, were used for assessing the technical feasibility of this concept, as they are potential carbon sinks and can benefit from reduction in alkalinity (pH) by mineral carbonation. Ultrasound was applied by use of an ultrasound horn into the reaction slurry, where mineral carbonation reaction took place at 50 oC for up to …
Process Intensification Routes For Mineral Carbonation, Rafael M. Santos, Tom Van Gerven
Process Intensification Routes For Mineral Carbonation, Rafael M. Santos, Tom Van Gerven
Faculty Publications and Scholarship
Mineral carbonation is a realistic route for capture and storage of carbon dioxide. The principal advantages of this approach are the chemical stability and storage safety of mineral carbonates, the opportunities for process integration available, and the potential for conversion of low-value materials into useful products. In this work the valorisation of alkaline waste materials from thermal processes by mineral carbonation utilizing intensified and integrated mineral carbonation routes is explored. Process intensification is the chemical engineering of the 21st century, and aims at providing the paradigm-shifting techniques that will revolutionize the industry. The combination of process intensification and process integration …