CO2 storage with indirect carbonation using industrial waste

“…Mineral carbon sequestration is based on the principles of the natural carbonation process of natural rocks, where the CO 2 dissolved in rainwater forms a weak carbonic acid. Consequently, alkali and alkaline earth metals (i.e., Ca and Mg) neutralize the acid to from insoluble carbonate minerals [12,13]. Sequestration happens in several alkaline minerals, such as calcite (CaCO 3 ), dolomite (Ca/Mg(CO 3 ) 2 ), magnesite (MgCO 3 ), siderite (FeCO 3 ), and serpentine (…”

Section: Mineral Carbon Sequestrationmentioning

confidence: 99%

Carbon Mineralization by Reaction with Steel-Making Waste: A Review

et al. 2019

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Carbon capture and sequestration (CCS) is taking the lead as a means for mitigating climate change. It is considered a crucial bridging technology, enabling carbon dioxide (CO2) emissions from fossil fuels to be reduced while the energy transition to renewable sources is taking place. CCS includes a portfolio of technologies that can possibly capture vast amounts of CO2 per year. Mineral carbonation is evolving as a possible candidate to sequester CO2 from medium-sized emissions point sources. It is the only recognized form of permanent CO2 storage with no concerns regarding CO2 leakage. It is based on the principles of natural rock weathering, where the CO2 dissolved in rainwater reacts with alkaline rocks to form carbonate minerals. The active alkaline elements (Ca/Mg) are the fundamental reactants for mineral carbonation reaction. Although the reaction is thermodynamically favored, it takes place over a large time scale. The challenge of mineral carbonation is to offset this limitation by accelerating the carbonation reaction with minimal energy and feedstock consumption. Calcium and magnesium silicates are generally selected for carbonation due to their abundance in nature. Industrial waste residues emerge as an alternative source of carbonation minerals that have higher reactivity than natural minerals; they are also inexpensive and readily available in proximity to CO2 emitters. In addition, the environmental stability of the industrial waste is often enhanced as they undergo carbonation. Recently, direct mineral carbonation has been investigated significantly due to its applicability to CO2 capture and storage. This review outlines the main research work carried out over the last few years on direct mineral carbonation process utilizing steel-making waste, with emphasis on recent research achievements and potentials for future research.

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“…Whilst containing undesired ions, pH is usually adjusted prior to carbonation, to precipitate the undesired ions out of the solution. Once only the desired ions remain, CO 2 is injected at high pH (pH 8 to 12) to achieve maximum CO 2 absorption [12][13][14][15]. Through this manner, high quality of products is formed, making it feasible for actual industrial application [9].…”

Section: Theoretical Frameworkmentioning

confidence: 99%

“…Using the results obtained from the XRD analysis, the following reactions took place to release the iron, magnesium, and aluminum ions into the solution (Equations (13) to (15)…”

Section: Carbon Dioxide Sequestration Potentialmentioning

confidence: 99%

Determination of the Carbon Dioxide Sequestration Potential of a Nickel Mine Mixed Dump through Leaching Tests

et al. 2019

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Carbon dioxide sequestration via mineralization is one of the methods that has the capability to efficiently store carbon dioxide in a stable form. A mixed dump sample collected from a nickel laterite mine in Southern Philippines was tested for its carbon dioxide sequestration potential through HCl leaching tests, employing the Face-Centered Cube (FCC) experimental design for Response Surface Methodology (RSM). Mineralogical analysis performed through X-ray diffraction (XRD) analysis suggests the presence of three minerals, namely goethite, khademite and lizardite; additional X-ray fluorescence (XRF) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) results, however, established goethite as the main component due to the dominance of iron in the sample. Morphological analyses performed through a scanning electron microscope (SEM) and the Brunauer–Emmett–Teller (BET) method suggest high accessible surface area despite considerable variability in sample composition. Leaching tests further confirmed the high reactivity of the mixed dump as high extraction rates were obtained for iron, with the maximum iron extraction efficiency of 95.37% reported at 100 °C, 2.5 M, and 2.5 h. The carbon dioxide sequestration potential of the mixed dump was reported as the amount of CO2 that can be sequestered per amount of sample, which was calculated to be 327.2 mg CO2/g sample using the maximum iron extraction obtained experimentally.

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CO2 storage with indirect carbonation using industrial waste

Cited by 55 publications

References 7 publications

A comprehensive review on energy efficient CO2 breakthrough technologies for sustainable green iron and steel manufacturing

A comprehensive review on energy efficient CO2 breakthrough technologies for sustainable green iron and steel manufacturing

Carbon Mineralization by Reaction with Steel-Making Waste: A Review

Determination of the Carbon Dioxide Sequestration Potential of a Nickel Mine Mixed Dump through Leaching Tests

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