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Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage

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Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage. / Li, Didi; Jiang, Xi; Meng, Qingliang et al.
In: Computers and Fluids, Vol. 114, 02.07.2015, p. 1-11.

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Li D, Jiang X, Meng Q, Xie Q. Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage. Computers and Fluids. 2015 Jul 2;114:1-11. Epub 2015 Mar 5. doi: 10.1016/j.compfluid.2015.02.014

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Li, Didi ; Jiang, Xi ; Meng, Qingliang et al. / Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage. In: Computers and Fluids. 2015 ; Vol. 114. pp. 1-11.

Bibtex

@article{05f1f769fcf4453e8548b36b4ef1c8fa,
title = "Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage",
abstract = "Numerical simulations are carried out to investigate the effects of impurity on geological storage of carbon dioxide (CO2), in the context of carbon capture and storage which has been considered as one of the primary options for significantly reducing anthropogenic emissions of greenhouse gases into the atmosphere. The CO2 streams captured from power plants or other large industrial processes contain a variety of impurities. This study investigates the effects of nitrogen (N2) on the dissolution trapping mechanism, which occurs when the injected CO2 mixture dissolves into the formation fluids. The density of the formation water/brine at the two-phase interface would increase in response to the dissolution of CO2. At favorable conditions, convection would be triggered and could greatly accelerate the dissolution rate of CO2. This density-driven convection process is beneficial for both storage security and permanence. However, N2 would lead to a density reduction of the aqueous phase when dissolved into the formation water/brine. The onset of convection would be delayed and the dissolution rate may be affected when co-injecting CO2 with N2. In addition, the spatial distribution of CO2 in the aqueous phase would also be different with varying amounts of N2 in the CO2 streams.",
keywords = "Carbon storage, Impurity, Convective mixing, Numerical simulation",
author = "Didi Li and Xi Jiang and Qingliang Meng and Qiyuan Xie",
year = "2015",
month = jul,
day = "2",
doi = "10.1016/j.compfluid.2015.02.014",
language = "English",
volume = "114",
pages = "1--11",
journal = "Computers and Fluids",
issn = "0045-7930",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Numerical analyses of the effects of nitrogen on the dissolution trapping mechanism of carbon dioxide geological storage

AU - Li, Didi

AU - Jiang, Xi

AU - Meng, Qingliang

AU - Xie, Qiyuan

PY - 2015/7/2

Y1 - 2015/7/2

N2 - Numerical simulations are carried out to investigate the effects of impurity on geological storage of carbon dioxide (CO2), in the context of carbon capture and storage which has been considered as one of the primary options for significantly reducing anthropogenic emissions of greenhouse gases into the atmosphere. The CO2 streams captured from power plants or other large industrial processes contain a variety of impurities. This study investigates the effects of nitrogen (N2) on the dissolution trapping mechanism, which occurs when the injected CO2 mixture dissolves into the formation fluids. The density of the formation water/brine at the two-phase interface would increase in response to the dissolution of CO2. At favorable conditions, convection would be triggered and could greatly accelerate the dissolution rate of CO2. This density-driven convection process is beneficial for both storage security and permanence. However, N2 would lead to a density reduction of the aqueous phase when dissolved into the formation water/brine. The onset of convection would be delayed and the dissolution rate may be affected when co-injecting CO2 with N2. In addition, the spatial distribution of CO2 in the aqueous phase would also be different with varying amounts of N2 in the CO2 streams.

AB - Numerical simulations are carried out to investigate the effects of impurity on geological storage of carbon dioxide (CO2), in the context of carbon capture and storage which has been considered as one of the primary options for significantly reducing anthropogenic emissions of greenhouse gases into the atmosphere. The CO2 streams captured from power plants or other large industrial processes contain a variety of impurities. This study investigates the effects of nitrogen (N2) on the dissolution trapping mechanism, which occurs when the injected CO2 mixture dissolves into the formation fluids. The density of the formation water/brine at the two-phase interface would increase in response to the dissolution of CO2. At favorable conditions, convection would be triggered and could greatly accelerate the dissolution rate of CO2. This density-driven convection process is beneficial for both storage security and permanence. However, N2 would lead to a density reduction of the aqueous phase when dissolved into the formation water/brine. The onset of convection would be delayed and the dissolution rate may be affected when co-injecting CO2 with N2. In addition, the spatial distribution of CO2 in the aqueous phase would also be different with varying amounts of N2 in the CO2 streams.

KW - Carbon storage

KW - Impurity

KW - Convective mixing

KW - Numerical simulation

U2 - 10.1016/j.compfluid.2015.02.014

DO - 10.1016/j.compfluid.2015.02.014

M3 - Journal article

VL - 114

SP - 1

EP - 11

JO - Computers and Fluids

JF - Computers and Fluids

SN - 0045-7930

ER -