Parameters optimization for direct flue gas CO 2 capture and sequestration by aqueous mineral carbonation using activated serpentinite based mining residue

Pasquier, Louis-César; Mercier, Guy; Blais, Jean‐François; Cecchi, Emmanuelle; Kentish, Sandra E.

doi:10.1016/j.apgeochem.2014.08.008

Cited by 56 publications

(55 citation statements)

References 31 publications

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“…Current investigations into integrated mineral carbonation processes mostly focus on mine waste that contains serpentine and brucite (Bobicki 2014, Harrison 2013. The most common methods for mine waste pre-treatment are thermal activation using calcination (Pasquier et al 2014), microwave heating (Bobicki 2014), steam mediation (Larachi et al 2012), and chemical activation using organic or inorganic acid (Bobicki 2014). These pre-treatment methods dehydrate serpentine and/or disorder its crystal structure, which greatly acelerates serpentine carbonation.…”

Section: Ex-situ Mineral Carbonationmentioning

confidence: 99%

A Review on Integrated Mineral Carbonation Process in Ultramafic Mine Deposit

Hitch

2017

GREE

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Dramatical increase in the CO2 concentration in the atmosphere has led to the climate change, which poses a significant threat to human life on Earth. CO2 sequestration via mineral carbonation is the one of the most effective method for mitigating global warming, and is the only way that could store CO2 permanently. In recent years, integrating mineral carbonation via ultramafic mine deposit has received significant attention due to its high potentiality towards commercial application. This review compiles the work conducted by various researchers over the last few years on integrated mineral carbonation processes in mining industry, which use the mine waste materials as CO2 feedstock for mineral carbonation. This paper initially introduces the basic theory of mineral carbonation, with a brief description of various techniques that enhance the rate of mineral carbonation. The enhanced mineral carbonation strategies include pre-treatment of feedstock by thermal, chemical and mechanical activation, and carbonation in a direct or indirect carbonation routes under gas/solid phase or aqueous phase. This paper then introduces the scope of application of integrated mineral carbonation. This includes the types of mine suitable for integrated mineral carbonation, the properties of mine waste materials preferable for CO2 sequestration, and the worldwide locations potentially viable for integrated mineral carbonation. Moreover, this paper critically reviews and discusses the integrated mineral carbonation process in mining industry. The integrated mineral carbonation processes include modified passive carbonation techniques at tailing dams, and ex-situ carbonation routes using fresh tailings. The focus of the discussions is the role of reaction condition on the carbonation efficiency of mine waste with various mineralogy, and the drawback of each integrated mineral carbonation process. All the discussions lead to the suggestions on the technology improvement in the integrated mineral carbonation process. Finally, this paper reviews the economical assessments on the existing integrated mineral carbonation process. Literature to date indicates that the value-add by-products (i.e. recovered metals, valuable carbonated products) play an important role in commercialization of an integrated mineral carbonation process.

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Section: Ex-situ Mineral Carbonationmentioning

confidence: 99%

A Review on Integrated Mineral Carbonation Process in Ultramafic Mine Deposit

Hitch

2017

GREE

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“…Laboratory-scale investigations have demonstrated carbonate mineral formation from mine tailings using biologically mediated and abiotic mechanisms [14,[28][29][30]. Microorganisms, particularly cyanobacteria [31][32][33][34][35][36] and ureolytic bacteria [37,38], can enable carbonate mineral precipitation reactions.…”

Section: Introductionmentioning

confidence: 99%

Experimental Deployment of Microbial Mineral Carbonation at an Asbestos Mine: Potential Applications to Carbon Storage and Tailings Stabilization

et al. 2017

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A microbial mineral carbonation trial was conducted at the Woodsreef Asbestos Mine (NSW, Australia) to test cyanobacteria-accelerated Mg-carbonate mineral precipitation in mine tailings. The experiment aimed to produce a carbonate crust on the tailings pile surface using atmospheric carbon dioxide and magnesium from serpentine minerals (asbestiform chrysotile; Mg 3 Si 2 O 5 (OH) 4 ) and brucite [Mg(OH) 2 ]. The crust would serve two purposes: Sequestering carbon and stabilizing the hazardous tailings. Two plots (0.5 m 3 ) on the tailings pile were treated with sulfuric acid prior to one plot being inoculated with a cyanobacteria-dominated consortium enriched from the mine pit lakes. After 11 weeks, mineral abundances in control and treated tailings were quantified by Rietveld refinement of powder X-ray diffraction data. Both treated plots possessed pyroaurite [Mg 6 Fe 2 (CO 3 )(OH) 16 ·4H 2 O] at 2 cm depth, made visible by its orange-red color. The inoculated plot exhibited an increase in the hydromagnesite [Mg 5 (CO 3 ) 4 (OH) 2 ·4H 2 O] content from 2-4 cm depth. The degree of mineral carbonation was limited compared to previous experiments, revealing the difficulty of transitioning from laboratory conditions to mine-site mineral carbonation. Water and carbon availability were limiting factors for mineral carbonation. Overcoming these limitations and enhancing microbial activity could make microbial carbonation a viable strategy for carbon sequestration in mine tailings.

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“…Using atmospheric CO 2 and cyanobacteria-generated alkalinity in a carbon sequestration process is advantageous in remote locations lacking economically practical sources of CO 2 such as flue gases from power generation. At mine sites located in close proximity to point sources of CO 2 , injection of supercritical or gaseous CO 2 into the tailings may provide an effective sequestration strategy (Assima et al, 2013;Pasquier et al, 2014). Regardless of the mechanism utilized, mineral carbonation of chrysotile mine tailings would aid in stabilizing the hazardous asbestiform waste.…”

Section: Carbonation: Maximizing Tailings Stabilization Versus Carbonmentioning

confidence: 99%

“…The availability of CO 2 is often the limiting factor in mineral carbonation of ultramafic tailings (Pokrovsky and Schott, 2000;Pokrovsky and Schott, 2004;Vermilyea, 1969). A strategy for overcoming this hurdle is to inject fluids or gases rich in CO 2 directly into the tailings pile Harrison et al, 2013;Pasquier et al, 2014).…”

Section: Carbonate Mineral Precipitationmentioning

confidence: 99%

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Microbial carbonation in natural and engineered environments

McCutcheon¹

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Microbial carbonation, the ability of microorganisms to promote carbonate mineral precipitation, has been documented in a variety of environments. The purpose of this thesis was to investigate the biogeochemical processes by which cyanobacteria aid carbonate precipitation in two contrasting environments as a means of determining if the fundamental controls on cyanobacterial carbonation are consistent across environmental regimes.The first of these environments was beachrock in the intertidal zone of Heron Island (Capricorn Group, Great Barrier Reef). In this investigation, carbonate microbialites and cements in the beachrock were characterized using scanning electron microscopy (SEM) and X-ray fluorescence microscopy (XFM). Mapping strontium using XFM proved to be a useful technique for revealing structures in beachrock that are otherwise difficult to see, such as laminations in aragonite (CaCO 3 ) microbialites. Characterization using SEM suggested that extracellular polymeric substances (EPS) play an important role in carbonate mineral nucleation. These results indicate that microbial carbonate mineral dissolution and re-precipitation over time is crucial to beachrock lithification.The role of microorganisms, particularly alkalinity generating cyanobacteria, in beachrock formation was confirmed in an 8-week beachrock synthesis experiment. Aquaria containing beach sand and fragmented beachrock from Heron Island were maintained under conditions simulating the intertidal zone environment in which beachrock forms. The seawater added to the aquaria was enriched in strontium so that any new carbonate precipitates could be identified using XFM. Beachrock was successfully synthesized and contained fossiliferous microbialites comparable to those in natural beachrock. Cement nucleation occurred on EPS within biofilms and exhibited co-precipitation of aragonite and calcite. No beachrock formed in the aquarium controlled by evaporation and tidal wetting and drying. These findings suggest that microbial activity is necessary for instigating beachrock cementation, which may become important as a means of stabilizing reef sand cays against sea-level rise.The ability of cyanobacteria to induce materials stabilization was subsequently applied to a more industrial setting, the derelict Woodsreef Asbestos Mine (New South Wales, Australia). Woodsreef Mine hosts ~24 Mt of tailings rich in asbestiform chrysotile [Mg 3 (Si 2 O 5 )(OH) 4 ]. Cyanobacteriadominated microbial mats can be found in the open pits lakes, and were used as an inoculum for mineral carbonation experiments. These experiments aimed to contain the tailings by producing a magnesium carbonate crust, or 'magcrete', while also sequestering atmospheric carbon dioxide.iii Columns of tailings were leached using sulfuric acid to release magnesium from the tailing minerals, after which some columns were inoculated with the microbial consortium. In 4 weeks, a mm-scale crust of dypingite [Mg 5 (CO 3 ) 4 (OH) 2 ·5H 2 O] formed on the surface of the inoculated col...

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Parameters optimization for direct flue gas CO 2 capture and sequestration by aqueous mineral carbonation using activated serpentinite based mining residue

Cited by 56 publications

References 31 publications

A Review on Integrated Mineral Carbonation Process in Ultramafic Mine Deposit

A Review on Integrated Mineral Carbonation Process in Ultramafic Mine Deposit

Experimental Deployment of Microbial Mineral Carbonation at an Asbestos Mine: Potential Applications to Carbon Storage and Tailings Stabilization

Microbial carbonation in natural and engineered environments

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