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Title: Impacts of Methane on Carbon Dioxide Storage in Brine Formations: M.R. Soltanian et al. Groundwater XX, no. Y: XX-YY

Authors:
 [1];  [2];  [2];  [2];  [3];  [4];  [3]; ORCiD logo
  1. School of Earth Sciences, The Ohio State University, Columbus OH, Department of Geology, University of Cincinnati, Cincinnati OH
  2. School of Earth Sciences, The Ohio State University, Columbus OH
  3. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge TN
  4. The University of Tennessee, Knoxville TN
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1417124
Grant/Contract Number:
FEAA-045
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Ground Water
Additional Journal Information:
Related Information: CHORUS Timestamp: 2018-01-16 17:52:57; Journal ID: ISSN 0017-467X
Publisher:
Wiley-Blackwell
Country of Publication:
United States
Language:
English

Citation Formats

Soltanian, Mohamad R., Amooie, Mohammad A., Cole, David R., Darrah, Thomas H., Graham, David E., Pfiffner, Susan M., Phelps, Tommy J., and Moortgat, Joachim. Impacts of Methane on Carbon Dioxide Storage in Brine Formations: M.R. Soltanian et al. Groundwater XX, no. Y: XX-YY. United States: N. p., 2018. Web. doi:10.1111/gwat.12633.
Soltanian, Mohamad R., Amooie, Mohammad A., Cole, David R., Darrah, Thomas H., Graham, David E., Pfiffner, Susan M., Phelps, Tommy J., & Moortgat, Joachim. Impacts of Methane on Carbon Dioxide Storage in Brine Formations: M.R. Soltanian et al. Groundwater XX, no. Y: XX-YY. United States. doi:10.1111/gwat.12633.
Soltanian, Mohamad R., Amooie, Mohammad A., Cole, David R., Darrah, Thomas H., Graham, David E., Pfiffner, Susan M., Phelps, Tommy J., and Moortgat, Joachim. 2018. "Impacts of Methane on Carbon Dioxide Storage in Brine Formations: M.R. Soltanian et al. Groundwater XX, no. Y: XX-YY". United States. doi:10.1111/gwat.12633.
@article{osti_1417124,
title = {Impacts of Methane on Carbon Dioxide Storage in Brine Formations: M.R. Soltanian et al. Groundwater XX, no. Y: XX-YY},
author = {Soltanian, Mohamad R. and Amooie, Mohammad A. and Cole, David R. and Darrah, Thomas H. and Graham, David E. and Pfiffner, Susan M. and Phelps, Tommy J. and Moortgat, Joachim},
abstractNote = {},
doi = {10.1111/gwat.12633},
journal = {Ground Water},
number = ,
volume = ,
place = {United States},
year = 2018,
month = 1
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on January 16, 2019
Publisher's Accepted Manuscript

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  • An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2more » leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.« less
  • A laboratory-scale reactor was developed to evaluate the capture of carbon dioxide (CO{sub 2}) from a gas into a liquid as an approach to control greenhouse gases emitted from fixed sources. CO{sub 2} at 5-50% concentrations was passed through a gas-exchange membrane and transferred into liquid media - tap water or simulated brine. When using water, capture efficiencies exceeded 50% and could be enhanced by adding base (e.g., sodium hydroxide) or the combination of base and carbonic anhydrase, a catalyst that speeds the conversion of CO{sub 2} to carbonic acid. The transferred CO{sub 2} formed ions, such as bicarbonate ormore » carbonate, depending on the amount of base present. Adding precipitating cations, like Ca{sup ++}, produced insoluble carbonate salts. Simulated brine proved nearly as efficient as water in absorbing CO{sub 2}, with less than a 6% reduction in CO{sub 2} transferred. The CO{sub 2} either dissolved into the brine or formed a mixture of gas and ions. If the chemistry was favorable, carbonate precipitate spontaneously formed. Energy expenditure of pumping brine up and down from subterranean depths was modeled. We concluded that using brine in a gas-exchange membrane system for capturing CO{sub 2} from a gas stream to liquid is technically feasible and can be accomplished at a reasonable expenditure of energy. 24 refs., 9 figs., 2 tabs., 1 app.« less
  • In the tropical rainforest at La Selva Biological Station in Costa Rica, regional bedrock groundwater high in dissolved carbon discharges into some streams and wetlands, with the potential for multiple cascading effects on ecosystem carbon pools and fluxes. We investigated carbon dioxide (CO 2) and methane (CH 4) degassing from two streams at La Selva: the Arboleda, where ~1/3 of the streamflow is from regional groundwater, and the Taconazo, fed exclusively by local groundwater recharged within the catchment. The regional groundwater inflow to the Arboleda had no measurable effect on stream gas exchange velocity, dissolved CH 4 concentration, or CHmore » 4 emissions but significantly increased stream CO 2 concentration and degassing. CO 2 evasion from the reach of the Arboleda receiving regional groundwater (lower Arboleda) averaged 5.5 mol C m -2 d -1, ~7.5x higher than the average (0.7 mol C m -2 d -1) from the stream reaches with no regional groundwater inflow (the Taconazo and upper Arboleda). Carbon emissions from both streams were dominated by CO 2; CH 4 accounted for only 0.06-1.70% of the total (average of both streams: 5 x10 -3 mol C m -2 d -1). Annual stream degassing fluxes normalized by watershed area were 48 and 299 g C m -2 for the Taconazo and Arboleda, respectively. CO 2 degassing from the Arboleda is a significant carbon flux, similar in magnitude to the average net ecosystem exchange estimated by eddy covariance. As a result, examining the effects of catchment connections to underlying hydrogeological systems can help avoid overestimation of ecosystem respiration and advance our understanding of carbon source/sink status and overall terrestrial ecosystem carbon budgets.« less
  • Preliminary estimates of CO{sub 2} storage potential in geologic formations provide critical information related to Carbon Capture, Utilization, and Storage (CCUS) technologies to mitigate CO{sub 2} emissions. Currently multiple methods to estimate CO{sub 2} storage and multiple storage estimates for saline formations have been published, leading to potential uncertainty when comparing estimates from different studies. In this work, carbon dioxide storage estimates are compared by applying several commonly used methods to general saline formation data sets to assess the impact that the choice of method has on the results. Specifically, six CO{sub 2} storage methods were applied to thirteen salinemore » formation data sets which were based on formations across the United States with adaptations to provide the geologic inputs required by each method. Methods applied include those by (1) international efforts – the Carbon Sequestration Leadership Forum (Bachu et al., 2007); (2) United States government agencies – U.S. Department of Energy – National Energy Technology Laboratory (US-DOE-NETL, 2012) and United States Geological Survey (Brennan et al., 2010); and (3) the peer-reviewed scientific community – Szulczewski et al. (2012) and Zhou et al. (2008). A statistical analysis of the estimates generated by multiple methods revealed that assessments of CO{sub 2} storage potential made at the prospective level were often statistically indistinguishable from each other, implying that the differences in methodologies are small with respect to the uncertainties in the geologic properties of storage rock in the absence of detailed site-specific characterization.« less