The formation of stable and insoluble Mg- and Ca-carbonates and/or hydroxy-carbonate hydrates, through water-mediated reaction of Mg(OH)2 (brucite) and Ca(OH)2 (portlandite) with carbon dioxide, is referred to as mineral carbonation (MC). MC is among the most promising potential solutions for long-term carbon capture and storage (CCS), since it is spontaneous under a wide range of conditions. However, kinetic barriers pose severe limitations to the practical exploitation of MC, implying energy requirements to reach sufficiently high reaction rates. Trying to overcome these hindrances, we show here the application of microwave (MW)-assisted processes for the carbonation of brucite, used as a model system for the carbonation occurring in a number of widely diffused minerals, such as serpentine. The mechanism, kinetics, and energy costs of the reaction, together with the chemical characteristics of the products obtained, are inferred by a combined study, carried out by both a MW synthesizer on bulk brucite water slurries and a purposedly developed microscopy platform, working on nano-scale regions of the surface of brucite single crystals.

Yivlialin, R., Campione, M., Corti, M., Capitani, G., Lucotti, A., Tommasini, M., et al. (2023). Microwave-matter interaction for enhanced carbon capture by mineral carbonation. Intervento presentato a: 109° Congresso Nazionale Società Italiana di Fisica, Salerno, Italia.

Microwave-matter interaction for enhanced carbon capture by mineral carbonation

Campione, M;Corti, M.;Capitani, G;Malaspina, N
2023

Abstract

The formation of stable and insoluble Mg- and Ca-carbonates and/or hydroxy-carbonate hydrates, through water-mediated reaction of Mg(OH)2 (brucite) and Ca(OH)2 (portlandite) with carbon dioxide, is referred to as mineral carbonation (MC). MC is among the most promising potential solutions for long-term carbon capture and storage (CCS), since it is spontaneous under a wide range of conditions. However, kinetic barriers pose severe limitations to the practical exploitation of MC, implying energy requirements to reach sufficiently high reaction rates. Trying to overcome these hindrances, we show here the application of microwave (MW)-assisted processes for the carbonation of brucite, used as a model system for the carbonation occurring in a number of widely diffused minerals, such as serpentine. The mechanism, kinetics, and energy costs of the reaction, together with the chemical characteristics of the products obtained, are inferred by a combined study, carried out by both a MW synthesizer on bulk brucite water slurries and a purposedly developed microscopy platform, working on nano-scale regions of the surface of brucite single crystals.
abstract + slide
Carbon capture utilization and storage, microwave chemistry, mineral carbonation,
English
109° Congresso Nazionale Società Italiana di Fisica
2023
Alzani, B; Bellacosa, M; Bianchi Bazzi, G
978-88-7438-134-0
2023
198
198
open
Yivlialin, R., Campione, M., Corti, M., Capitani, G., Lucotti, A., Tommasini, M., et al. (2023). Microwave-matter interaction for enhanced carbon capture by mineral carbonation. Intervento presentato a: 109° Congresso Nazionale Società Italiana di Fisica, Salerno, Italia.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/441818
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