Feasibility of Large-Scale Ocean CO2 Sequestration

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This report covers research accomplished during CY 2006 under a modification of a previous award. During this period we completed analysis of the acoustic detection and modeling of a rising deep-sea liquid CO{sub 2} plume, and published the results in a major journal. The results are applicable to detection of leakage of CO{sub 2} from the sea floor, either from natural CO{sub 2} vents, or from purposefully disposed CO{sub 2} in sub-sea geologic formations. In April 2006 we executed, in collaboration with colleagues from Massachusetts Institute of Technology, Oak Ridge National Laboratory, and Canada a novel at sea experiment on ... continued below

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Brewer, Peter G. September 30, 2006.

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Description

This report covers research accomplished during CY 2006 under a modification of a previous award. During this period we completed analysis of the acoustic detection and modeling of a rising deep-sea liquid CO{sub 2} plume, and published the results in a major journal. The results are applicable to detection of leakage of CO{sub 2} from the sea floor, either from natural CO{sub 2} vents, or from purposefully disposed CO{sub 2} in sub-sea geologic formations. In April 2006 we executed, in collaboration with colleagues from Massachusetts Institute of Technology, Oak Ridge National Laboratory, and Canada a novel at sea experiment on the creation of a sinking plume of a CO{sub 2} hydrate composite paste, extruded through nozzles designed by ORNL. The work showed that a sinking, and slowly dissolving, mass can be created at depths where the pure liquid (above) would rise far and fast. In August 2006 we executed a cruise to the massive exposed methane hydrates in Barkley Canyon, off-shore Vancouver Island. There we cored the exposed hydrates, and exposed the specimens on the sea floor at 850m depth to liquid CO{sub 2} in a 3 liter closed container. The object was to examine possible inter-conversion of methane hydrate to CO{sub 2} hydrate with liberation of methane gas, and sequestration of the CO{sub 2} as a solid. Each of these complex experiments was successfully executed and the results reported in major journals and/or at national meetings.

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  • Report No.: None
  • Grant Number: FC26-00NT40929
  • DOI: 10.2172/897705 | External Link
  • Office of Scientific & Technical Information Report Number: 897705
  • Archival Resource Key: ark:/67531/metadc883039

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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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Creation Date

  • September 30, 2006

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 28, 2016, 3:21 p.m.

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Brewer, Peter G. Feasibility of Large-Scale Ocean CO2 Sequestration, report, September 30, 2006; United States. (digital.library.unt.edu/ark:/67531/metadc883039/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.