Carbon capture and utilization: Preliminary life cycle CO2, energy, and cost results of potential mineral carbonation

Khoo, Hsien H.; Bu, Jie; Wong, Run Ling; Kuan, Szu-Chi; Sharratt, Paul

doi:10.1016/j.egypro.2011.02.145

Cited by 73 publications

(38 citation statements)

References 12 publications

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“…In their cost evaluations of aqueous mineral carbonation, Huijgen et al (2007) (wollastonite) and Khoo et al (2011) (serpentine) also conclude that reducing energy demand for their proposed processes is important. Furthermore, the large-scale mining of magnesium silicates may limit the adoption of this pathway.…”

Section: Naturally Occurring Mineral Pathwaymentioning

confidence: 94%

“…The results presented here are for olivine and wollastonite, which have a more favorable energy requirement than the more-common serpentine, which requires additional energy to remove chemically bound water (Gerdemann et al, 2007). Khoo et al (2011) performed a life-cycle evaluation of CO 2 mineralization using serpentine, another mineral silicate, and flue gas from a natural gas combined cycle power plant, and they report energy penalty of approximately 90-125%. Their evaluation includes the same processes considered in this evaluation as well as transportation, but their process takes place at atmospheric pressure and has minimal grinding energy requirements compared to those used by Gerdemann et al (2007) or Huijgen et al (2006).…”

Section: Industrial Caustics and Brinementioning

confidence: 95%

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An evaluation of ex situ, industrial-scale, aqueous CO2 mineralization

Kelly

Silcox

Sarofim

et al. 2011

International Journal of Greenhouse Gas Control

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Section: Naturally Occurring Mineral Pathwaymentioning

confidence: 94%

Section: Industrial Caustics and Brinementioning

confidence: 95%

An evaluation of ex situ, industrial-scale, aqueous CO2 mineralization

Kelly

Silcox

Sarofim

et al. 2011

International Journal of Greenhouse Gas Control

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“…For example, according to research by Lackner et al [14], Stasiulaitiene et al [15] and Fagerlund et al [16][17][18], the carbonation process for magnesium hydroxide obtained from serpentine requires high temperature (over 500 °C) and high-pressure (over 20 bar) conditions. In contrast, the liquid method according to Gerdemann et al [19] and Khoo et al [20] requires relatively lower carbonation temperature and pressure conditions of 185 °C and more than 40 bar, and 170 °C and 1 bar, respectively. However, the method which uses an aqueous system to produce carbonate also requires a reaction condition of high temperature and pressure.…”

Section: Introductionmentioning

confidence: 99%

CO2 Fixation by Membrane Separated NaCl Electrolysis

et al. 2015

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Atmospheric concentrations of carbon dioxide (CO2), a major cause of global warming, have been rising due to industrial development. Carbon capture and storage (CCS), which is regarded as the most effective way to reduce such atmospheric CO2 concentrations, has several environmental and technical disadvantages. Carbon capture and utilization (CCU), which has been introduced to cover such disadvantages, makes it possible to capture CO2, recycling byproducts as resources. However, CCU also requires large amounts of energy in order to induce reactions. Among existing CCU technologies, the process for converting CO2 into CaCO3 requires high temperature and high pressure as reaction conditions. This study proposes a method to fixate CaCO3 stably by using relatively less energy than existing methods. After forming NaOH absorbent solution through electrolysis of NaCl in seawater, CaCO3 was precipitated at room temperature and pressure. Following the experiment, the resulting product CaCO3 was analyzed with Fourier transform infrared spectroscopy (FT-IR); field emission scanning electron microscopy (FE-SEM) image and X-ray diffraction (XRD) patterns were also analyzed. The results showed that the CaCO3 crystal product was high-purity calcite. The study shows a successful method for fixating CO2 by reducing carbon dioxide released into the atmosphere while forming high-purity CaCO3. OPEN ACCESSEnergies 2015, 8 8705

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“…However, the existing magnesium-based carbonation process has the aforementioned problems. According to Nduagu [12] and Khoo et al [13], extracting magnesium oxide or hydroxide from serpentine requires heating to a temperature of 500 • C or higher, and high temperature reaction conditions are needed again in the hydration process after extraction [14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Two Processes Forming CaCO3 Precipitates by Electrolysis

et al. 2016

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Abstract:As one of the carbon capture and utilization (CCU) technologies, mineral carbonation which has been introduced to reduce the carbon dioxide (CO 2 ) concentration in the atmosphere is a technology that makes it possible to capture CO 2 and recycle byproducts as resources. However, existing mineral carbonation requires additional energy and costs, as it entails high temperature and high pressure reaction conditions. This study compared two processes which electrolyze NaCl and CaCl 2 solution to produce CO 2 absorbent needed to generate CaCO 3 , and which were conducted at room temperature and pressure unlike existing mineral carbonation. As a result, high-purity calcite was obtained through Process 1 using NaCl solution, and aragonite and portlandite were obtained in addition to calcite through Process 2 (two steps) using CaCl 2 solution.

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Carbon capture and utilization: Preliminary life cycle CO2, energy, and cost results of potential mineral carbonation

Cited by 73 publications

References 12 publications

An evaluation of ex situ, industrial-scale, aqueous CO2 mineralization

An evaluation of ex situ, industrial-scale, aqueous CO2 mineralization

CO2 Fixation by Membrane Separated NaCl Electrolysis

Comparison of Two Processes Forming CaCO3 Precipitates by Electrolysis

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