Geological Carbon Sequestration by Reactive Infiltration Instability. / Sun, Yizhuo; Payton, Ryan; Hier-Majumder, Saswata; Kingdon, Andrew.

In: Frontiers in Earth Science, Vol. 8, 533588, 17.12.2020, p. 1-10.

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Geological Carbon Sequestration by Reactive Infiltration Instability. / Sun, Yizhuo; Payton, Ryan; Hier-Majumder, Saswata; Kingdon, Andrew.

In: Frontiers in Earth Science, Vol. 8, 533588, 17.12.2020, p. 1-10.

Research output: Contribution to journalArticlepeer-review

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Sun, Yizhuo ; Payton, Ryan ; Hier-Majumder, Saswata ; Kingdon, Andrew. / Geological Carbon Sequestration by Reactive Infiltration Instability. In: Frontiers in Earth Science. 2020 ; Vol. 8. pp. 1-10.

BibTeX

@article{b88419d5e0c5436895ac8fd55745afdb,
title = "Geological Carbon Sequestration by Reactive Infiltration Instability",
abstract = "We study carbon capture and sequestration (CCS) over time scales of 2000 years by implementing a numerical model of reactive infiltration instability caused by reactive porous flow. Our model focuses on the mineralization of CO2 dissolved in the pore water—the geological carbon sequestration phase of a CCS operation—starting 10–100 years after the injection of CO2 in the subsurface. We test the influence of three parameters: porosity, mass fraction of the Ca-rich feldspar mineral anorthite in the solid, and the chemical reaction rate, on the mode of fluid flow and efficiency of CaCO3 precipitation during geological carbon sequestration. We demonstrate that the mode of porous flow switches from propagation of a planar front at low porosities to propagation of channels at porosities exceeding 10%. The channels develop earlier for more porous aquifers. Both high anorthite mass fraction in the solid phase and high reaction rates aid greater amounts of carbonate precipitation, with the reaction rate exerting the stronger influence of the two. Our calculations indicate that an aquifer with dimensions 500 m × 2 km × 2 km can sequester over 350 Mt solid CaCO3 after 2000 years. To precipitate 50 Mt CaCO3 after 2000 years in this aquifer, we suggest selecting a target aquifer with more than 10 wt% of reactive minerals. We recommend that the aquifer porosity, abundance of reactive aluminosilicate minerals such as anorthite, and reaction rates are taken into consideration while selecting future CCS sites.",
keywords = "GCS, CCS, reactive infiltration instability, carbon capture, porous flow",
author = "Yizhuo Sun and Ryan Payton and Saswata Hier-Majumder and Andrew Kingdon",
year = "2020",
month = dec,
day = "17",
doi = "10.3389/feart.2020.533588",
language = "English",
volume = "8",
pages = "1--10",
journal = "Frontiers in Earth Science",
issn = "2296-6463",
publisher = "Frontiers Media S.A.",

}

RIS

TY - JOUR

T1 - Geological Carbon Sequestration by Reactive Infiltration Instability

AU - Sun, Yizhuo

AU - Payton, Ryan

AU - Hier-Majumder, Saswata

AU - Kingdon, Andrew

PY - 2020/12/17

Y1 - 2020/12/17

N2 - We study carbon capture and sequestration (CCS) over time scales of 2000 years by implementing a numerical model of reactive infiltration instability caused by reactive porous flow. Our model focuses on the mineralization of CO2 dissolved in the pore water—the geological carbon sequestration phase of a CCS operation—starting 10–100 years after the injection of CO2 in the subsurface. We test the influence of three parameters: porosity, mass fraction of the Ca-rich feldspar mineral anorthite in the solid, and the chemical reaction rate, on the mode of fluid flow and efficiency of CaCO3 precipitation during geological carbon sequestration. We demonstrate that the mode of porous flow switches from propagation of a planar front at low porosities to propagation of channels at porosities exceeding 10%. The channels develop earlier for more porous aquifers. Both high anorthite mass fraction in the solid phase and high reaction rates aid greater amounts of carbonate precipitation, with the reaction rate exerting the stronger influence of the two. Our calculations indicate that an aquifer with dimensions 500 m × 2 km × 2 km can sequester over 350 Mt solid CaCO3 after 2000 years. To precipitate 50 Mt CaCO3 after 2000 years in this aquifer, we suggest selecting a target aquifer with more than 10 wt% of reactive minerals. We recommend that the aquifer porosity, abundance of reactive aluminosilicate minerals such as anorthite, and reaction rates are taken into consideration while selecting future CCS sites.

AB - We study carbon capture and sequestration (CCS) over time scales of 2000 years by implementing a numerical model of reactive infiltration instability caused by reactive porous flow. Our model focuses on the mineralization of CO2 dissolved in the pore water—the geological carbon sequestration phase of a CCS operation—starting 10–100 years after the injection of CO2 in the subsurface. We test the influence of three parameters: porosity, mass fraction of the Ca-rich feldspar mineral anorthite in the solid, and the chemical reaction rate, on the mode of fluid flow and efficiency of CaCO3 precipitation during geological carbon sequestration. We demonstrate that the mode of porous flow switches from propagation of a planar front at low porosities to propagation of channels at porosities exceeding 10%. The channels develop earlier for more porous aquifers. Both high anorthite mass fraction in the solid phase and high reaction rates aid greater amounts of carbonate precipitation, with the reaction rate exerting the stronger influence of the two. Our calculations indicate that an aquifer with dimensions 500 m × 2 km × 2 km can sequester over 350 Mt solid CaCO3 after 2000 years. To precipitate 50 Mt CaCO3 after 2000 years in this aquifer, we suggest selecting a target aquifer with more than 10 wt% of reactive minerals. We recommend that the aquifer porosity, abundance of reactive aluminosilicate minerals such as anorthite, and reaction rates are taken into consideration while selecting future CCS sites.

KW - GCS

KW - CCS

KW - reactive infiltration instability

KW - carbon capture

KW - porous flow

UR - https://www.frontiersin.org/articles/10.3389/feart.2020.533588/full?&utm_source=Email_to_authors_&utm_medium=Email&utm_content=T1_11.5e1_author&utm_campaign=Email_publication&field=&journalName=Frontiers_in_Earth_Science&id=533588

U2 - 10.3389/feart.2020.533588

DO - 10.3389/feart.2020.533588

M3 - Article

VL - 8

SP - 1

EP - 10

JO - Frontiers in Earth Science

JF - Frontiers in Earth Science

SN - 2296-6463

M1 - 533588

ER -