Experimental Evaluation Of Glauconitic Sediments For In-Situ Carbon Sequestration

Loading...
Thumbnail Image

Persistent link to this item

Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Experimental Evaluation Of Glauconitic Sediments For In-Situ Carbon Sequestration

Published Date

2018-04

Publisher

Type

Thesis or Dissertation

Abstract

Flow through experiments were conducted with intact glauconite-bearing sandstone cores from the Tunnel City Group to determine the effectiveness of iron carbonate precipitation as a trapping mechanism for CO2. Mossbauer spectroscopy indicated that the ferrous/ferric ratio of iron in the glauconite-bearing sandstone was 0.24. The experimental design entailed the use of a fluid delivery system that permitted control of flow rate (0.01 ml/min), as well as confining and pore fluid pressure (200 and 150 bar, respectively). The source fluid was a 1 molal NaCl brine charged with approximately 0.58 mol CO2/kg solution held constant at 150°C. A second experiment was conducted to test the effect of reducing conditions on the formation of iron carbonate minerals. The dissolved chemistry of outlet fluid provided evidence of fluid saturation with dolomite and siderite, and revealed a decrease in alkalinity. This suggests that glauconitic sandstones may be a favorable host rock for carbon sequestration.

Keywords

Description

University of Minnesota M.S. thesis. April 2018. Major: Earth Sciences. Advisor: William Seyfried. 1 computer file (PDF); v, 57 pages.

Related to

Replaces

License

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Suggested citation

Kiesel, Timothy. (2018). Experimental Evaluation Of Glauconitic Sediments For In-Situ Carbon Sequestration. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/198962.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.