PCC2005 Sample

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Considered herein is a process concept that integrates fly ash amendment of brine produced as a result of oil and gas extraction with subsequent sequestration of carbon dioxide in the resulting alkaline solution. The CO2 solubility-trapping capacity of the alkaline mixture is substantially greater than that of the acidic raw brine. In addition to pH adjustment, addition of CaO-rich combustion byproduct augments the concentration of Ca++ cations initially present in the brine to increase solution capacity for mineral trapping of CO2. One- and two-stage approaches for implementation of this treatment process were considered. Batch reactions were conducted with several Class ... continued below

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Creator: Unknown. September 1, 2005.

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Description

Considered herein is a process concept that integrates fly ash amendment of brine produced as a result of oil and gas extraction with subsequent sequestration of carbon dioxide in the resulting alkaline solution. The CO2 solubility-trapping capacity of the alkaline mixture is substantially greater than that of the acidic raw brine. In addition to pH adjustment, addition of CaO-rich combustion byproduct augments the concentration of Ca++ cations initially present in the brine to increase solution capacity for mineral trapping of CO2. One- and two-stage approaches for implementation of this treatment process were considered. Batch reactions were conducted with several Class C fly ashes and one flue gas desulfurization (FGD) byproduct. Preliminary results verify the potential to substantially enhance CO2 sequestration capacity and increase mineral sequestration of absorbed CO2, primarily as CaCO3. Feasibility of the described CO2 sequestration treatment concept was, therefore, successfully demonstrated.

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Publisher - in 22nd Annual International Pittsburgh Coal Conference, CD-ROM Proceedings, 2005, ISBN 1-890977-22-5, paper 46-1, 26 pp.

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  • 22nd Annual International Pittsburgh Coal Conference, Pittsburgh, PA, Sept. 12-15, 2005

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  • Report No.: DOE/NETL-IR-2005-216
  • Report No.: NETL-TPR-1229
  • Grant Number: None cited
  • Office of Scientific & Technical Information Report Number: 938816
  • Archival Resource Key: ark:/67531/metadc900315

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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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  • September 1, 2005

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 4, 2016, 2:10 p.m.

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PCC2005 Sample, article, September 1, 2005; (digital.library.unt.edu/ark:/67531/metadc900315/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.