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Title: Field Validation of Supercritical CO 2 Reactivity with Basalts

Abstract

Continued global use of fossil fuels places a premium on developing technology solutions to minimize increases in atmospheric CO 2 levels. CO 2 storage in reactive basalts might be one of these solutions by permanently converting injected gaseous CO 2 into solid carbonates. Herein we report results from a field demonstration where ~1000 MT of CO 2 was injected into a natural basalt formation in Eastern Washington State. Following two years of post-injection monitoring, cores were obtained from within the injection zone and subjected to detailed physical and chemical analysis. Nodules found in vesicles throughout the cores were identified as the carbonate mineral, ankerite Ca[Fe, Mg, Mn](CO 3) 2. Carbon isotope analysis showed the nodules are chemically distinct as compared with natural carbonates present in the basalt and clear correlation with the isotopic signature of the injected CO 2. These findings provide field validation of rapid mineralization rates observed from years of laboratory testing with basalts.

Authors:
; ORCiD logo; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1344633
Report Number(s):
PNNL-SA-119127
Journal ID: ISSN 2328-8930; 48820; AA7050000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Science & Technology Letters; Journal Volume: 4; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Environmental Molecular Sciences Laboratory

Citation Formats

McGrail, B. Peter, Schaef, Herbert T., Spane, Frank A., Cliff, John B., Qafoku, Odeta, Horner, Jake A., Thompson, Christopher J., Owen, Antoinette T., and Sullivan, Charlotte E.. Field Validation of Supercritical CO 2 Reactivity with Basalts. United States: N. p., 2017. Web. doi:10.1021/acs.estlett.6b00387.
McGrail, B. Peter, Schaef, Herbert T., Spane, Frank A., Cliff, John B., Qafoku, Odeta, Horner, Jake A., Thompson, Christopher J., Owen, Antoinette T., & Sullivan, Charlotte E.. Field Validation of Supercritical CO 2 Reactivity with Basalts. United States. doi:10.1021/acs.estlett.6b00387.
McGrail, B. Peter, Schaef, Herbert T., Spane, Frank A., Cliff, John B., Qafoku, Odeta, Horner, Jake A., Thompson, Christopher J., Owen, Antoinette T., and Sullivan, Charlotte E.. Tue . "Field Validation of Supercritical CO 2 Reactivity with Basalts". United States. doi:10.1021/acs.estlett.6b00387.
@article{osti_1344633,
title = {Field Validation of Supercritical CO 2 Reactivity with Basalts},
author = {McGrail, B. Peter and Schaef, Herbert T. and Spane, Frank A. and Cliff, John B. and Qafoku, Odeta and Horner, Jake A. and Thompson, Christopher J. and Owen, Antoinette T. and Sullivan, Charlotte E.},
abstractNote = {Continued global use of fossil fuels places a premium on developing technology solutions to minimize increases in atmospheric CO2 levels. CO2 storage in reactive basalts might be one of these solutions by permanently converting injected gaseous CO2 into solid carbonates. Herein we report results from a field demonstration where ~1000 MT of CO2 was injected into a natural basalt formation in Eastern Washington State. Following two years of post-injection monitoring, cores were obtained from within the injection zone and subjected to detailed physical and chemical analysis. Nodules found in vesicles throughout the cores were identified as the carbonate mineral, ankerite Ca[Fe, Mg, Mn](CO3)2. Carbon isotope analysis showed the nodules are chemically distinct as compared with natural carbonates present in the basalt and clear correlation with the isotopic signature of the injected CO2. These findings provide field validation of rapid mineralization rates observed from years of laboratory testing with basalts.},
doi = {10.1021/acs.estlett.6b00387},
journal = {Environmental Science & Technology Letters},
number = 1,
volume = 4,
place = {United States},
year = {Tue Jan 10 00:00:00 EST 2017},
month = {Tue Jan 10 00:00:00 EST 2017}
}