Search Results

Advanced search parameters have been applied.
open access

CO2 flood tests on whole core samples of the Mt. Simon sandstone, Illinois Basin

Description: Geological sequestration of CO2, whether by enhanced oil recovery (EOR), coal-bed methane (CBM) recovery, or saline aquifer injection is a promising near-term sequestration methodology. While tremendous experience exists for EOR, and CBM recovery has been demonstrated in existing fields, saline aquifer injection studies have only recently been initiated. Studies evaluating the availability of saline aquifers suitable for CO2 injection show great potential, however, the long-term fate of the CO2… more
Date: September 1, 2005
Creator: O'Connor, William K. & Rush, Gilbert E.
Partner: UNT Libraries Government Documents Department
open access

Mineral carbonation: energy costs of pretreatment options and insights gained from flow loop reaction studies

Description: Sequestration of carbon as a stable mineral carbonate has been proposed to mitigate environmental concerns that carbon dioxide may with time escape from its sequestered matrix using alternative sequestration technologies. A method has been developed to prepare stable carbonate products by reacting CO2 with magnesium silicate minerals in aqueous bicarbonate/chloride media at high temperature and pressure. Because this approach is inherently expensive due to slow reaction rates and high capital c… more
Date: January 1, 2004
Creator: Penner, Larry R.; O'Connor, William K.; Dahlin, David C.; Gerdemann, Stephen J. & Rush, Gilbert E.
Partner: UNT Libraries Government Documents Department

Material Resource Considerations for Ex Situ Carbon Sequestration

Description: The conclusions of this report are: (1) There are enough ultramafic resources to sequester all the CO{sub 2} produced by coal-fired powerplants in the US; (2) Sequestering all the CO{sub 2} would require a significant increase in the mining of ultramafic minerals; (3) The increased mining will have an environmental cost; (4) Some man made by product minerals could contribute to CO{sub 2} sequestration although many of these resources are small; and (5) It may be possible in some cases to seques… more
Date: May 1, 2005
Creator: Gerdemann, Stephen J.; Dahlin, David C.; O'Connor, William K.; Penner, Larry R. & Rush, Gilbert E.
Partner: UNT Libraries Government Documents Department
open access

Research status on the sequestration of carbon dioxide by direct aqueous mineral carbonation

Description: Direct aqueous mineral carbonation has been investigated as a process to convert gaseous CO2 into a geologically stable, solid final form. The process utilizes a solution of distilled water, or sodium bicarbonate (NaHCO3), sodium chloride (NaCl), and water, mixed with a mineral reactant, such as olivine (Mg2SiO4) or serpentine [Mg3Si2O5(OH)4]. Carbon dioxide is dissolved into this slurry, by diffusion through the surface and gas dispersion within the aqueous phase. The process includes dissolut… more
Date: January 1, 2001
Creator: O'Connor, William K.; Dahlin, David C.; Nilsen, David N.; Gerdemann, Stephen J.; Rush, Gilbert E.; Walters, Richard P. et al.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen