Mineral Carbonation for Carbon Sequestration with Industrial Waste

Mun, Myoungwook; Cho, Heechan

doi:10.1016/j.egypro.2013.06.633

Cited by 67 publications

(35 citation statements)

References 9 publications

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“…Although the formation of CaCO3 can be achieved by a simple precipitation reaction between Ca 2+ and CO 3 2− ions, the controllable formation of a specific polymorph of CaCO3 is still a practical challenge. Various synthesis factors and their effects on the formation of CaCO3 polymorphs have been investigated thus far using simple model chemicals (e.g., CaCl2 and K2CO3), or via the extraction of Ca 2+ from natural silicates (e.g., wollastonite) (Zhao et al, 2013), and industrial wastes (e.g., steel slag, fly ash, waste cement, and blast furnace slag) (Wu et al, 2001;Huijgen and Comans, 2005;Eloneva et al, 2008a;Chang et al, 2011;Nduagu et al, 2012;Mun and Cho, 2013).…”

Section: Synthesis Variables and Their Effects On The Formation Of Camentioning

confidence: 99%

Calcium Carbonate Precipitation for CO2 Storage and Utilization: A Review of the Carbonate Crystallization and Polymorphism

et al. 2017

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The transformation of CO2 into a precipitated mineral carbonate through an ex situ mineral carbonation route is considered a promising option for carbon capture and storage (CCS) since (i) the captured CO2 can be stored permanently and (ii) industrial wastes (i.e., coal fly ash, steel and stainless-steel slags, and cement and lime kiln dusts) can be recycled and converted into value-added carbonate materials by controlling polymorphs and properties of the mineral carbonates. The final products produced by the ex situ mineral carbonation route can be divided into two categories-low-end high-volume and high-end low-volume mineral carbonates-in terms of their market needs as well as their properties (i.e., purity). Therefore, it is expected that this can partially offset the total cost of the CCS processes. Polymorphs and physicochemical properties of CaCO3 strongly rely on the synthesis variables such as temperature, pH of the solution, reaction time, ion concentration and ratio, stirring, and the concentration of additives. Various efforts to control and fabricate polymorphs of CaCO3 have been made to date. In this review, we present a summary of current knowledge and recent investigations entailing mechanistic studies on the formation of the precipitated CaCO3 and the influences of the synthesis factors on the polymorphs.

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Section: Synthesis Variables and Their Effects On The Formation Of Camentioning

confidence: 99%

Calcium Carbonate Precipitation for CO2 Storage and Utilization: A Review of the Carbonate Crystallization and Polymorphism

et al. 2017

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“…6 indicating the leaching process in marine environment. On comparison with the blocks made of raw slag and concrete, no significant impact was observed due to the use of carbonated slag in the blocks [35]. Artificial reefs show high stability in sea water due to the presence of calcium carbonate and can act as substrate for sea weeds and corals [37].…”

Section: Feasibility Study To Use Converted Carbonates As Coastal Promentioning

confidence: 97%

“…Titration analysis [34] of the residues of indirect carbonation on Linz-Donawitz converter slag revealed a carbonation efficiency of 85 % with acetic acid and that of 97 % with ammonium chloride. Even-though the carbonation is high in the case of indirect process, the energy requirement for the indirect process is more when compared with direct process [35].…”

Section: Indirect Carbonation Processmentioning

confidence: 99%

Ocean Applications for Carbon Dioxide Sequestration

Prasad

Murthy

Muddada

et al. 2016

Geologic Carbon Sequestration

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Increase in the concentration of carbon dioxide (CO 2 ) in the atmosphere is being attributed to the adverse effects such as warming of the planet; increase in the sea level; variation in the atmospheric and ocean circulation patterns; snow cover variation; and, sea ice extent. One of the common approaches followed in the mitigation efforts is the study on the reduction of the emissions of CO 2 from the major point sources such as coal fired power plants, steel plants, cement industries. Direct injection of the carbon dioxide into the deep oceans, mineral carbonation applications, in situ replacement of the gas hydrate into the carbon dioxide hydrates, micro algal sequestration and iron fertilization are some of the ocean sequestration options studied in the literature. Present chapter studies the feasibility of different ocean sequestration methods in comparison with the technological requirements for the realization of these methods.The relative merits of the methods, the technological challenges, ecological and environmental issues needing detailed studies for the application are discussed in this chapter. The experiments conducted on the mineral carbonation of industrial wastes such as steel slag using direct and indirect methods are discussed, considering the Linz-Donawitz converter slag. The carbonation efficiency for different conditions is compared and the structure of the resulting materials is analyzed. The prospective applications for coastal protective measures and artificial reef growth and the state of the art in similar applications using the concrete structure are discussed. The chapter discusses in detail the energy requirements in mineral carbonation methodology using the steel slag.

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“…On the other hand, the storage capacity of industrial waste is limited and dependent on developments of technology. The process of neutralising CO 2 with industrial waste has been presented in literature (Back et al, 2008;Bauer et al, 2011;Mun and Cho, 2013;Sanna et al, 2014;Stolaroff et al, 2005;Uibu and Kuusik, 2009). Possibilities of using domestic fly ashes were also examined (Jaschik et al, 2013;Uliasz-Bochenczyk, 2011;Uliasz-Bocheńczyk et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

The utilisation of fly ash in CO2 mineral carbonation

Jaschik

Warmuziński

2016

Chemical and Process Engineering

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The fixation of CO 2 in the form of inorganic carbonates, also known as mineral carbonation, is an interesting option for the removal of carbon dioxide from various gas streams. The captured CO 2 is reacted with metal-oxide bearing materials, usually naturally occurring minerals. The alkaline industrial waste, such as fly ash can also be considered as a source of calcium or magnesium. In the present study the solubility of fly ash from conventional pulverised hard coal fired boilers, with and without desulphurisation products, and fly ash from lignite fluidised bed combustion, generated by Polish power stations was analysed. The principal objective was to assess the potential of fly ash used as a reactant in the process of mineral carbonation. Experiments were done in a 1 dm 3 reactor equipped with a heating jacket and a stirrer. The rate of dissolution in water and in acid solutions was measured at various temperatures (20 -80ºC), waste-to-solvent ratios (1:100 -1:4) and stirrer speeds (300 -1100 min -1 ). Results clearly show that fluidised lignite fly ash has the highest potential for carbonation due to its high content of free CaO and fast kinetics of dissolution, and can be employed in mineral carbonation of CO 2 .

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Mineral Carbonation for Carbon Sequestration with Industrial Waste

Cited by 67 publications

References 9 publications

Calcium Carbonate Precipitation for CO2 Storage and Utilization: A Review of the Carbonate Crystallization and Polymorphism

Calcium Carbonate Precipitation for CO2 Storage and Utilization: A Review of the Carbonate Crystallization and Polymorphism

Ocean Applications for Carbon Dioxide Sequestration

The utilisation of fly ash in CO2 mineral carbonation

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