CO2 Carbonation on Alkaline Materials
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Carbon dioxide CO2 plays an important role in global warming because of the greenhouse effect.
Different technologies have been studied for its capture and storage; an alternative pathway called “Mineral CO2 sequestration” is a process in which carbon dioxide CO2 reacts with materials having a high metal oxide composition to produce a chemically stable and insoluble metal carbonate. This work has the results of the reaction of mineral carbonation of natural JT material (CaSiO3). This last is synthesized starting from the calcination with 900 °C of the rough clay which is obtained from a tertiary formation located in Eastern Morocco. The carbonate of calcium (CaCO3) is formed after the submission of the sample to a flow of pure CO2 during 15 min under the normal conditions of the temperature and the pressure. It was assessed by diffraction of x-rays (DRX), electronic scan microscopy (MEB).
These techniques of analyzes physics-chemical validate the CO2 collection efficiency by our material.
KeywordsCarbon dioxide Greenhouse effect Mineral carbonation Calcium carbonates
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