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Title: CO 2 Mineral Sequestration in Naturally Porous Basalt

Abstract

Continental flood basalts are extensive geologic features currently being evaluated as reservoirs that are suitable for long-term storage of carbon emissions. Favorable attributes of these formations for containment of injected carbon dioxide (CO2) include high mineral trapping capacity, unique structural features, and enormous volumes. We experimentally investigated mineral carbonation in whole core samples retrieved from the Grand Ronde basalt, the same formation into which ~1000 t of CO2 was recently injected in an eastern Washington pilot-scale demonstration. The rate and extent of carbonate mineral formation at 100 °C and 100 bar were tracked via time-resolved sampling of bench-scale experiments. Basalt cores were recovered from the reactor after 6, 20, and 40 weeks, and three-dimensional X-ray tomographic imaging of these cores detected carbonate mineral formation in the fracture network within 20 weeks. Under these conditions, a carbon mineral trapping rate of 1.24 ± 0.52 kg of CO2/m3 of basalt per year was estimated, which is orders of magnitude faster than rates for deep sandstone reservoirs. On the basis of these calculations and under certain assumptions, available pore space within the Grand Ronde basalt formation would completely carbonate in ~40 years, resulting in solid mineral trapping of ~47 kg of CO2/m3 ofmore » basalt.« less

Authors:
 [1];  [2];  [3]; ORCiD logo [3];  [2]; ORCiD logo [1]
  1. Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
  2. Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri 63130, United States
  3. Pacific Northwest National Laboratory, Richland, Washington 99354, United States
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1439025
Report Number(s):
PNNL-SA-133317
Journal ID: ISSN 2328-8930; AA7020000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Science & Technology Letters; Journal Volume: 5; Journal Issue: 3
Country of Publication:
United States
Language:
English

Citation Formats

Xiong, Wei, Wells, Rachel K., Horner, Jake A., Schaef, Herbert T., Skemer, Philip A., and Giammar, Daniel E. CO2 Mineral Sequestration in Naturally Porous Basalt. United States: N. p., 2018. Web. doi:10.1021/acs.estlett.8b00047.
Xiong, Wei, Wells, Rachel K., Horner, Jake A., Schaef, Herbert T., Skemer, Philip A., & Giammar, Daniel E. CO2 Mineral Sequestration in Naturally Porous Basalt. United States. doi:10.1021/acs.estlett.8b00047.
Xiong, Wei, Wells, Rachel K., Horner, Jake A., Schaef, Herbert T., Skemer, Philip A., and Giammar, Daniel E. Tue . "CO2 Mineral Sequestration in Naturally Porous Basalt". United States. doi:10.1021/acs.estlett.8b00047.
@article{osti_1439025,
title = {CO2 Mineral Sequestration in Naturally Porous Basalt},
author = {Xiong, Wei and Wells, Rachel K. and Horner, Jake A. and Schaef, Herbert T. and Skemer, Philip A. and Giammar, Daniel E.},
abstractNote = {Continental flood basalts are extensive geologic features currently being evaluated as reservoirs that are suitable for long-term storage of carbon emissions. Favorable attributes of these formations for containment of injected carbon dioxide (CO2) include high mineral trapping capacity, unique structural features, and enormous volumes. We experimentally investigated mineral carbonation in whole core samples retrieved from the Grand Ronde basalt, the same formation into which ~1000 t of CO2 was recently injected in an eastern Washington pilot-scale demonstration. The rate and extent of carbonate mineral formation at 100 °C and 100 bar were tracked via time-resolved sampling of bench-scale experiments. Basalt cores were recovered from the reactor after 6, 20, and 40 weeks, and three-dimensional X-ray tomographic imaging of these cores detected carbonate mineral formation in the fracture network within 20 weeks. Under these conditions, a carbon mineral trapping rate of 1.24 ± 0.52 kg of CO2/m3 of basalt per year was estimated, which is orders of magnitude faster than rates for deep sandstone reservoirs. On the basis of these calculations and under certain assumptions, available pore space within the Grand Ronde basalt formation would completely carbonate in ~40 years, resulting in solid mineral trapping of ~47 kg of CO2/m3 of basalt.},
doi = {10.1021/acs.estlett.8b00047},
journal = {Environmental Science & Technology Letters},
number = 3,
volume = 5,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2018},
month = {Tue Feb 27 00:00:00 EST 2018}
}