Carbon sequestration using brine of adjusted pH to form mineral carbonates

Druckenmiller, Matthew L.; Maroto‐Valer, M. Mercedes

doi:10.1016/j.fuproc.2005.01.007

Cited by 141 publications

(96 citation statements)

References 4 publications

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“…The pH value is another important factor related to the rate of calcium leaching, the rate of CO 2 dissolution, the rate of CaCO 3 nucleation, and the specific species that are precipitated (Druckenmiller and Maroto-Valer, 2005;Tai et al, 2006). According to a report by Park and Fan (2004), the optimum pH for aqueous carbonation is around 10, while the dissolution of BOF slag occurs under low pH conditions.…”

Section: Performance Evaluationmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

358

193

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CO 2 capture, utilization, and storage (CCUS) is a promising technology wherein CO 2 is captured and stored in solid form for further utilization instead of being released into the atmosphere in high concentrations. Under this framework, a new process called accelerated carbonation has been widely researched and developed. In this process, alkaline materials are reacted with high-purity CO 2 in the presence of moisture to accelerate the reaction to a timescale of a few minutes or hours. The feedstock for accelerated carbonation includes natural silicate-minerals (e.g., wollastonite, serpentine, and olivine) and industrial residues (e.g., steelmaking slag, municipal solid waste incinerator (MSWI) ash, and air pollution control (APC) residues). This research article focuses on carbonation technologies that use industrial alkaline wastes, such as steelmaking slags and metalworking wastewater. The carbonation of alkaline solid waste has been shown to be an effective way to capture CO 2 and to eliminate the contents of Ca(OH) 2 in solid residues, thus improving the durability of concrete blended with the carbonated residues. However, the operating conditions must be further studied for both the economic viability of the technology and the optimal conditions for CO 2 reaction.

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Section: Performance Evaluationmentioning

confidence: 99%

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Pan

Chang

Chiang

2012

Aerosol Air Qual. Res.

358

193

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“…Furthermore, literature suggests that mineralisation of CO2 occurs by a similar mechanism to the reverse process of carbonate dissolution. Hence, information derived from carbonate dissolution studies may be applied to enhance understanding of all aspects of CO2 storage operations at a given site [10,11].…”

Section: Introductionmentioning

confidence: 99%

Kinetics of calcite dissolution in CO2-saturated water at temperatures between (323 and 373) K and pressures up to 13.8 MPa

et al. 2015

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We report measurements of the calcite dissolution rate in CO2-saturated water at pressures ranging from (6.0 to 13.8) MPa and temperatures from (323 to 373) K. The rate of calcite dissolution in HCl(aq) at temperatures from (298 to 353) K was also measured at ambient pressure with pH between 2.0 and 3.3. A specially-designed batch reactor system, implementing a rotating disc technique, was used to obtain the dissolution rate at the solid/liquid interface of a single crystal, free of mass transfer effects. We used Vertical Scanning Interferometry to examine the texture of the calcite surface produced by the experiment and the results suggested that at far-from-equilibrium conditions, the measured calcite dissolution rate was independent of the initial defect density due to the development of a dynamic dissolution pattern which became steady-state shortly after the onset of dissolution. The results of this study indicate that the calcite dissolution rate under surface-reactioncontrolled conditions increases with increase of temperature from (323 to 373) K and CO2 partial pressure from (6.0 to 13.8) MPa. Fitting the conventional first order transition state kinetic model to the observed rate suggested that, although sufficient to describe calcite dissolution in CO2-free HCl(aq), this model clearly underestimate the calcite dissolution rate in the (CO2 + H2O) system over the range of conditions studied. A kinetic model incorporating both pH and the activity of CO2(aq) has been developed to represent the dissolution rates found in this study. We report correlations for the corresponding reaction rate coefficients based on the Arrhenius equation and compare the apparent activation energies with values from the literature. The results of this study should facilitate more rigorous modelling of mineral dissolution in deep saline aquifers used for CO2 storage.2

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“…In addition, wastewater or brine, which is a saline-based waste solution (total dissolved solid is generally more than 10,000 mg/L) produced from some industrial procedures such as oil and natural gas extraction (known as oil-field brines), could be used as the liquid agents in the carbonation reaction (Druckenmiller and Maroto-Valer, 2005;Uibu and Kuusik, 2009;Mercedes Maroto-Valer, 2011, 2012). Most wastewater treatments use chemicals as a neutralizing agent to adjust pH and enhance metal precipitation.…”

Section: Figmentioning

confidence: 99%

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

Pan

Chiang

Chang

et al. 2015

Aerosol Air Qual. Res.

101

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Carbon dioxide (CO 2 ) emission reduction in industry should be a portfolio option; for example, the carbon capture and utilization by mineralization (CCUM) process is a feasible and proven technology where both CO 2 capture and alkaline waste treatment occur simultaneously through an integrated approach. In this study, the challengeable barriers and significant breakthroughs of CCUM via ex-situ carbonation were reviewed from both theoretical and practical perspectives. Recent progress on the performance of various carbonation processes for different types of alkaline solid wastes was also evaluated based on CO 2 capture capacity and carbonation efficiency. Moreover, several process intensification concepts such as reactor integration and co-utilization with wastewater or brine solution were reviewed and summarized. In addition, the utilization of carbonated products from CCUM as green materials including cement, aggregate and precipitate calcium carbonate were investigated. Furthermore, the current status of worldwide CCUM demonstration projects within the ironand steelmaking industries was illustrated. The energy consumption and cost analyses of CCUM were also evaluated.

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Carbon sequestration using brine of adjusted pH to form mineral carbonates

Cited by 141 publications

References 4 publications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

CO2 Capture by Accelerated Carbonation of Alkaline Wastes: A Review on Its Principles and Applications

Kinetics of calcite dissolution in CO2-saturated water at temperatures between (323 and 373) K and pressures up to 13.8 MPa

An Innovative Approach to Integrated Carbon Mineralization and Waste Utilization: A Review

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