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CO2 sequestration potential of Charqueadas coal field in Brazil
Petrobras Res Ctr, Brazil;Pontificia Univ Catolica Rio Grande do Sul, Brazil;Natl Energy Technol Lab, USA.
Natl Energy Technol Lab, USA;URS, USA.
Natl Energy Technol Lab, USA;URS, USA.
Natl Energy Technol Lab, USA;Univ Pittsburgh, USA.
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2013 (English)In: International Journal of Coal Geology, ISSN 0166-5162, E-ISSN 1872-7840, Vol. 106, p. 25-34Article in journal (Refereed) Published
Abstract [en]

Although coal is not the primary source of energy in Brazil there is growing interest to evaluate the potential of coal from the south of the country for various activities. The I2B coal seam in the Charqueadas coal field has been considered a target for enhanced coal bed methane production and CO2 sequestration. A detailed experimental study of the samples from this seam was conducted at the NETL with assistance from the Pontificia Universidade Catolica Do Rio Grande Do Sul. Such properties as sorption capacity, internal structure of the samples, porosity and permeability were of primary interest in this characterization study. The samples used were low rank coals (high volatile bituminous and sub-bituminous) obtained from the I2B seam. It was observed that the temperature effect on adsorption capacity correlates negatively with as-received water and mineral content. Langmuir CO2 adsorption capacity of the coal samples ranged 0.61-2.09 mmol/g. The upper I2B seam appears to be overall more heterogeneous and less permeable than the lower I2B seam. The lower seam coal appears to have a large amount of micro-fractures that do not close even at 11 MPa of confining pressure. Published by Elsevier B.V.

Place, publisher, year, edition, pages
Elsevier, 2013. Vol. 106, p. 25-34
Keywords [en]
Coal, Carbon dioxide, Sequestration, Permeability
National Category
Earth and Related Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-75813DOI: 10.1016/j.coal.2013.01.005ISI: 000316436500003OAI: oai:DiVA.org:lnu-75813DiVA, id: diva2:1217755
Available from: 2018-06-13 Created: 2018-06-13 Last updated: 2019-02-22Bibliographically approved

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Ketzer, João Marcelo

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Ketzer, João MarceloRomanov, Vyacheslav N.
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Output format
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