CO2 mineral carbonation using industrial solid wastes: A review of recent developments

Liu, Weizao; Teng, Liumei; Rohani, Sohrab; Qin, Zhifeng; Zhao, Bin; Xu, Chunbao; Ren, Shan; Liu, Qingcai; Liang, Bin

doi:10.1016/j.cej.2021.129093

Cited by 273 publications

(91 citation statements)

References 154 publications

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“…Nevertheless, more Si was extracted with ≥ 0.03 M GLDA than in its absence, which implies that this chelating agent can suppress the formation of a silica-rich layer to some extent to facilitate the release of Ca from calcium silicate. The formation of silica-rich passivating layers (with thicknesses ranging from several nm to µm) has been considered as one of the major contributors to the suppressed dissolution of metal ions from silicate minerals during CO 2 mineralization 12 , 35 .…”

Section: Resultsmentioning

confidence: 99%

“…The continuous increase in global CO 2 emissions has drawn much interest to the permanent storage of CO 2 via its mineralization through reactions with metal (e.g., Ca and Mg) ions extracted from silicate minerals (e.g., CaSiO 3 ) or solid wastes (e.g., steelmaking slags and municipal solid waste incinerator ashes) 10 – 12 . Production of CaCO 3 particles via CO 2 mineralization is ideal from the environmental protection perspective since this process could be negative CO 2 emissions.…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of aragonite mineralization with a chelating agent for CO2 storage and utilization at low to moderate temperatures

Wang

Watanabe

Inomoto

et al. 2021

Sci Rep

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Among the CaCO3 polymorphs, aragonite demonstrates a better performance as a filler material in the paper and plastic industries. Despite being ideal from the environmental protection perspective, the production of aragonite particles via CO2 mineralization of rocks is hindered by the difficulty in achieving high production efficiencies and purities, which, however, can be mitigated by exploiting the potential ability of chelating agents on metal ions extraction and carbonation controlling. Herein, chelating agent N,N-dicarboxymethyl glutamic acid (GLDA) was used to enhance the extraction of Ca from calcium silicate and facilitate the production of aragonite particles during the subsequent Ca carbonation. CO2 mineralization was promoted in the presence of 0.01–0.1 M GLDA at ≤ 80 °C, with the maximal CaCO3 production efficiency reached 308 g/kg of calcium silicate in 60 min using 0.03 M GLDA, which is 15.5 times higher than that without GLDA. In addition, GLDA showed excellent effects on promoting aragonite precipitation, e.g., the content of aragonite was only 5.1% in the absence of GLDA at 50 °C, whereas highly pure (> 90%, increased by a factor of 18) and morphologically uniform aragonite was obtained using ≥ 0.05 M GLDA under identical conditions. Aragonite particle morphologies could also be controlled by varying the GLDA concentration and carbonation temperature. This study proposed a carbon-negative aragonite production method, demonstrated the possibility of enhanced and controlled aragonite particle production during the CO2 mineralization of calcium silicates in the presence of chelating agents.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancement of aragonite mineralization with a chelating agent for CO2 storage and utilization at low to moderate temperatures

Wang

Watanabe

Inomoto

et al. 2021

Sci Rep

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“…Among the existing techniques, mineral carbonation allows the capture of CO 2 inside rocks, such as serpentinite, or waste such as steel making slags and platinum tailings (Khool et al, 2011;Nduagu et al, 2012;Giannoulakis et al, 2014;Xiao et al, 2014;Ostovari et al, 2020). CCU is particularly interesting for industrial solid waste, allowing a double advantage by capturing carbon dioxide and offering waste valorization, despite high energy issues (Liu et al, 2021). To investigate the best balance between issues and benefits, it needs to find the most efficient scenario for the CCU project and Life Cycle Assessment (LCA) is an efficient tool for this.…”

Section: Introductionmentioning

confidence: 99%

“…The novelty of this project lies first in the feedstock choice, i.e. nickel slag, whereas steel slag is most commonly studied for CCU (Liu et al, 2021). Then, two main construction products can be obtained from the mineral carbonation of nickel slag: Supplementary Cementitious Materials (SCM) and silicomagnesian cement.…”

Section: Introductionmentioning

confidence: 99%

Prospective Life Cycle Assessment at Early Stage of Product Development: Application to Nickel Slag Valorization Into Cement for the Construction Sector

Quéheille

Dauvergne

Ventura

2021

Front. Built Environ.

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Pyrometallurgical nickel industry in New Caledonia produces several tons of slag per year, which is stocked on site. There is no valorization today, except for a small transformation into sand. Pyrometallurgy highly consumes fossil-fuel energy and electricity for ore pre-treatment and nickel extraction inside electrical furnaces, which produces significant CO2 emissions. A new valorization approach is suggested to use these two local productions (slag and CO2) to mineralize slag and produce silico-magnesian cement for the construction sector. In order to ensure suitable environmental performances, many questions arise about the target valorized product: where and how to capture CO2 and produce cement, what constraints should be targeted for the mineralization process, can products be exported and where? Moreover, New Caledonia aims to develop renewable energies for electricity grid, which would mitigate local industries impacts in the future. A prospective Life Cycle Assessment (LCA) is used to define constraints on future product development. Two hundred scenarios are defined and compared as well as electricity grid evolution, using Brightway software. Thirteen scenarios can compete with traditional Portland cement for 12 of the 16 impacts of the ILCD midpoint method. The evolution of electricity grid slightly affects the performance of the scenarios by a mean of less than+/−25%, bringing a small difference on the number of acceptable scenarios. The main constraint requires improving the mineralization process by considerably reducing electricity consumption of the attrition-leaching operation. To be in line with scenarios concerning carbon neutrality of the cement industry by 2050, a sensitivity analysis provides the maximum energy consumption target for the mineralization process that is 0.9100 kWh/kg of carbonated slag, representing a 70% reduction of the current energy measured at lab scale. Valorization of nickel slag and CO2 should turn to carbon capture and utilization technology, which allows for the production of supplementary cementitious materials, another product for the construction sector. It will be the topic of a next prospective study.

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“…Dicalcium silicate material has the advantages of long-term strength, good corrosion resistance, low preparation temperature, low carbon dioxide emission, and the like during hydration, but the disadvantages of slow hardening speed, low early strength, and low hydration heat release limit its application in hydration properties [12]. The production of materials such as Portland clinker releases a large amount of carbon dioxide (about 0.8 tons of carbon dioxide per ton of Portland clinker produced [13] and 1.86 tons of carbon dioxide per ton of steel produced [14]), so adding slag to Portland cement is a way to alleviate the global greenhouse effect [15]. The carbonation properties of materials rich in dicalcium silicate can not only absorb carbon dioxide in the atmosphere, but also the carbonation products (calcium carbonate, etc.)…”

Section: Introductionmentioning

confidence: 99%

Hydration Activity and Carbonation Characteristics of Dicalcium Silicate in Steel Slag: A Review

Hao

Wang

Zhang

et al. 2021

Metals

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Dicalcium silicate is one of the main mineral phases of steel slag. Ascribed to the characteristics of hydration and carbonation, the application of slag in cement production and carbon dioxide sequestration has been confirmed as feasible. In the current study, the precipitation process of the dicalcium silicate phase in steel slag was discussed. Meanwhile, the study put emphasis on the influence of different crystal forms of dicalcium silicate on the hydration activity and carbonation characteristics of steel slag. It indicates that most of the dicalcium silicate phase in steel slag is the γ phase with the weakest hydration activity. The hydration activity of γ-C2S is improved to a certain extent by means of mechanical, high temperature, and chemical activation. However, the carbonation activity of γ-C2S is about two times higher than that of β-C2S. Direct and indirect carbonation can effectively capture carbon dioxide. This paper also summarizes the research status of the application of steel slag in cement production and carbon dioxide sequestration. Further development of the potential of dicalcium silicate hydration activity and simplifying the carbonation process are important focuses for the future.

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CO2 mineral carbonation using industrial solid wastes: A review of recent developments

Cited by 273 publications

References 154 publications

Enhancement of aragonite mineralization with a chelating agent for CO2 storage and utilization at low to moderate temperatures

Enhancement of aragonite mineralization with a chelating agent for CO2 storage and utilization at low to moderate temperatures

Prospective Life Cycle Assessment at Early Stage of Product Development: Application to Nickel Slag Valorization Into Cement for the Construction Sector

Hydration Activity and Carbonation Characteristics of Dicalcium Silicate in Steel Slag: A Review

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