Exploratory Research on Simulation of CO2-Brine-Mineral Interactions

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Application of many carbon sequestration strategies requires knowledge of thermodynamic properties for the extremely complex chemical system of CO{sub 2}-SO{sub 2}-H{sub 2}O-NaCl-CaCl{sub 2}-MgCl{sub 2}. This University Coal Research Phase I program has been successful and highly productive in exploring an approach to develop an equation of state (EOS) to describe thermodynamic properties in the above chemical system. We have compiled available laboratory experimental data and thermodynamic models, and evaluated their appropriateness for the carbon sequestration process. Based on this literature review, we provided an improved CO{sub 2} solubility model for the CO{sub 2}-H{sub 2}O-NaCl system, which incorporates newly available experimental ... continued below

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Zhu, Chen & Chiang, Shiao hung November 1, 2005.

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Description

Application of many carbon sequestration strategies requires knowledge of thermodynamic properties for the extremely complex chemical system of CO{sub 2}-SO{sub 2}-H{sub 2}O-NaCl-CaCl{sub 2}-MgCl{sub 2}. This University Coal Research Phase I program has been successful and highly productive in exploring an approach to develop an equation of state (EOS) to describe thermodynamic properties in the above chemical system. We have compiled available laboratory experimental data and thermodynamic models, and evaluated their appropriateness for the carbon sequestration process. Based on this literature review, we provided an improved CO{sub 2} solubility model for the CO{sub 2}-H{sub 2}O-NaCl system, which incorporates newly available experimental measurements funded by DOE, and is valid in temperature range from 273 to 533 K, pressure from 0 to 2000 bar, and salinity from 0 to 4.5 molality of NaCl equivalent. The improved model also greatly improves the computational efficiency of CO{sub 2} solubility calculations and thus is better suited to be incorporated into large computer simulation models (e.g., reservoir simulation models). The literature review and model development provided insights of the data needs and directions for future work. Synergetic collaboration with DOE scientists has resulted in simulations of injected CO{sub 2} fate in sandstone aquifer with a one-dimensional numerical coupled reactive transport model. We evaluated over 100 references on CO{sub 2} solubility and submitted two manuscripts to peer-reviewed journals. One paper has been accepted for publication in ''Environmental Geosciences''.

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  • Report No.: none
  • Grant Number: FG26-03NT41806
  • DOI: 10.2172/862200 | External Link
  • Office of Scientific & Technical Information Report Number: 862200
  • Archival Resource Key: ark:/67531/metadc792968

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 2005

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 8, 2018, 5:26 p.m.

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Zhu, Chen & Chiang, Shiao hung. Exploratory Research on Simulation of CO2-Brine-Mineral Interactions, report, November 1, 2005; Pittsburgh, Pennsylvania. (digital.library.unt.edu/ark:/67531/metadc792968/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.