Carbon sequestration via reaction with basaltic rocks: Geochemical modeling and experimental results

Rosenbauer, Robert J.; Thomas, Burt; Bischoff, James L.; Palandri, James

doi:10.1016/j.gca.2012.04.042

Cited by 82 publications

(45 citation statements)

References 38 publications

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“…5 Recently, CO 2 has also been injected into basaltic formations, because their high content of Ca, Mg, and Fe suggests the possibility of achieving CO 2 mineralization. [6][7][8] CO 2 sequestration combined with enhanced coal bed methane recovery has also been extensively studied, [9][10]11,12 and CO 2 injection is often used in tertiary enhanced oil recovery in depleted petroleum reservoirs. 13 Lately, CO 2 has also been used in fracturing fluids for shale gas stimulation.…”

Section: Introductionmentioning

confidence: 99%

CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

Striolo

Cole

2015

J. Phys. Chem. C

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Equilibrium molecular dynamics simulations were conducted for pure n-butane and for mixtures containing n-butane and carbon dioxide confined in 2 nm wide slit-shaped pores carved out of cristobalite silica. A range of thermodynamic conditions was explored, including temperatures ranging from sub-critical to super-critical, and various densities. Preferential adsorption of carbon dioxide near the -OH groups on the surface was observed, where the adsorbed CO 2 molecules tend to interact simultaneously with more than one -OH group. Analysis of the simulation results suggests that the preferential CO 2 adsorption to the pore walls weakens the adsorption of n-butane, lowers the activation energy for n-butane diffusivity, and consequently enhances n-butane mobility. The diffusion results obtained for pure CO 2 are consistent with strong adsorption on the pore walls, as the CO 2 self-diffusion coefficient is low at low densities, increases with loading, and exhibits a maximum as the density is increased further because of hindrance effects. As the temperature increases, the maximum in self-diffusion coefficient is narrower, steeper and shifted to lower loading. The simulation results are also quantified in terms of molecular density profiles for both butane and CO 2 and in terms of residence time of the various molecules near the solid substrate. Our results could be useful for designing separation devices and also for better understanding the behavior of fluids in sub-surface environments.

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Section: Introductionmentioning

confidence: 99%

CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

Striolo

Cole

2015

J. Phys. Chem. C

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“…The feasibility of geologic CO 2 sequestration (GCS) in basaltic rocks has been investigated primarily through experimental methods (Peuble et al, 2015;Galeczka et al, 2014;Stefánsson, 2012a, 2012b;McGrail et al, 2006;Rosenbauer et al, 2012;Schaef and McGrail, 2009;Schaef et al, 2010) and, to a lesser extent, via natural analogues (Flaathen et al, 2009;Lu et al, 2011) and pilot projects (Alfredsson et al, 2013;Gislason et al, 2010;Matter et al, 2011;McGrail et al, 2011). These studies have focused on the reactivity of CO 2 with fresh, unaltered olivine-rich material, basalt and basaltic glass.…”

Section: Implications For Geologic Co 2 Sequestration (Gcs) Into Basaltsmentioning

confidence: 99%

Geochemistry of CO2-rich waters in Iceland

et al. 2016

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CO 2 -rich waters in Iceland from volcanic systems of the Mid-Atlantic Ridge and off-rift volcanic areas of Iceland provide insights into the interactions between CO 2 -rich fluids and basaltic crust.These waters, from the Snaefellsnes Peninsula, within the South Iceland Seismic Zone and on the margin of the Torfajökull central volcano, are chemically and isotopically distinct from surface waters, groundwaters and low and high-temperature geothermal fluids in Iceland. Our conceptual model for the evolution of thermal and non-thermal CO 2 -rich waters (~4-80 mmol/kg ΣCO 2 (aq); 6.6-192 °C) suggests that lower subsurface temperatures during retrograde alteration and cooling of a geothermal system increase the aqueous solubility of CO 2 , which allows anomalously high aqueous CO 2 concentrations. The elevated CO 2 concentrations result in slightly acidic pH (average in situ pH of 6.40), which leads to increased dissolution of primary and hydrothermal silicate minerals. Equilibrium with respect to carbonate minerals, calculated using measured solute concentrations, suggests that carbonate mineral reactions control the water compositions in these systems more than in high-temperature systems, and that hydrothermally altered basalts are sufficiently reactive to promote carbonate mineralization during geologic CO 2 sequestration (GCS). Water-rock interaction with previously hydrothermally altered basalts releases trace elements to the aqueous phase to levels above the World Health Organization drinking water limit. The elements of environmental concern include arsenic (<0.01 to 1.08 μmol/kg) and manganese (<0.1 to 184 μmol/kg), highlighting the need for careful site selection during GCS to prevent groundwater contamination.

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“…First, approximately 25 weight percent of basalt is made of calcium, magnesium, and iron oxides [20][21]. Second, as basaltic rocks are far more reactive in water than sedimentary silicate rocks, the metals contained in basalts are readily available to combine with injected CO 2 to form carbonate minerals [16,22]. Third, basaltic rocks are highly abundant on the Earth´s surface; approximately 8% of the continents [23,24] and much of the ocean floor is comprised of basalt [25].…”

Section: Mineral Carbon Storage Within Basaltic Rocks Review Of Expementioning

confidence: 99%

Rapid solubility and mineral storage of CO2 in basalt

et al. 2014

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The long-term security of geologic carbon storage is critical to its success and public acceptance. Much of the security risk associated with geological carbon storage stems from its buoyancy. Gaseous and supercritical CO 2 are less dense than formation waters, providing a driving force for it to escape back to the surface. This buoyancy can be eliminated by the dissolution of CO 2 into water prior to, or during its injection into the subsurface. The dissolution makes it possible to inject into fractured rocks and further enhance mineral storage of CO 2 especially if injected into silicate rocks rich in divalent metal cations such as basalts and ultra-mafic rocks. We have demonstrated the dissolution of CO 2 into water during its injection into basalt leading to its geologic solubility storage in less than five minutes and potential geologic mineral storage within few years after injection [1][2][3]. The storage potential of CO 2 within basaltic rocks is enormous. All the carbon released from burning of all fossil fuel on Earth, 5000 GtC, can theoretically be stored in basaltic rocks [4].

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Carbon sequestration via reaction with basaltic rocks: Geochemical modeling and experimental results

Cited by 82 publications

References 38 publications

CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

Geochemistry of CO2-rich waters in Iceland

Rapid solubility and mineral storage of CO2 in basalt

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Carbon sequestration via reaction with basaltic rocks: Geochemical modeling and experimental results

Cited by 82 publications

References 38 publications

CO2–C4H10 Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

CO2–C4H10 Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

Geochemistry of CO2-rich waters in Iceland

Rapid solubility and mineral storage of CO2 in basalt

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CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics

CO₂–C₄H₁₀ Mixtures Simulated in Silica Slit Pores: Relation between Structure and Dynamics