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Study of gas tracers for CO2 monitoring
PUCRS Pontificia Univ Catilica Rio Grande Sul, Brazil.
PUCRS Pontificia Univ Catilica Rio Grande Sul, Brazil.
PUCRS Pontificia Univ Catilica Rio Grande Sul, Brazil.
PUCRS Pontificia Univ Catilica Rio Grande Sul, Brazil.
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2014 (English)In: 12th International Conference on Greenhouse Gas Control Technologies, GHGT-12 / [ed] Dixon, T Herzog, H Twinning, S, Elsevier, 2014, p. 3864-3868Conference paper, Published paper (Refereed)
Abstract [en]

Gas tracers have been tested libr monitoring and detecting CO, displacement in the underground and eventually leakages to the upper layers in geological storage sites. Commonly used tracers are perfluorocarbons (PFCs) and sulfur hexafluoride (SF6). In Brazil, we are canying out gas tracers studies in laboratory for further application in field test 'facilities. These experiments consist of injecting CO, with perfluorocarbon (perfluoropropane PP and pealuormethylcyclopentane PMCP) at low pressure (ca. 290 psi) in pressurized vessels with different types of sediments and soil samples. After flowing through the sample pores, the tracer is adsorbed into a capillary adsorption tube (CAT) with a specific fiber for perfluorcabon. Then, the tracer is extracted from the CAT through a Thermal Desorption System and subsequently analyzed in a Gas Chromatograph with an Electron Capture Detector (GC ECD). The objective of these experiments is to evaluate the PFCs as a monitoring tool; analyzing the tracer retention times in different sediments, as well as understanding the CATs adsorption capacity and performance. After laboratory tests, field experiments will be conducted in the course of this project. Several experiments of CO2 injection and controlled leaks will be developed in shallow vertical wells at the project site as a continuity of the experiments started at Ressacada Fann Site (Florianopolis, Brazil). The project aim is to understand the flow and dispersion of CO2 in soil and atmosphere simulating an eventual leakage from a geological reservoir using an automated system with a dedicated module for tracers injection into CO2 stream. (C) 2015 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creavativecommons.org/licesses/by-nc-nd/3.0/). Peer-review under responsibility of the Organizing Committee of GLIGT-12

Place, publisher, year, edition, pages
Elsevier, 2014. p. 3864-3868
Series
Energy Procedia, ISSN 1876-6102 ; 63
Keywords [en]
Gas tracers, perfluorcarbon, CO2, monitoring
National Category
Earth and Related Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-75751DOI: 10.1016/j.egypro.2014.11.416ISI: 000361211504006OAI: oai:DiVA.org:lnu-75751DiVA, id: diva2:1217478
Conference
12th International Conference on Greenhouse Gas Control Technologies (GHGT), OCT 05-09, 2014, Austin, TX
Available from: 2018-06-13 Created: 2018-06-13 Last updated: 2018-06-13Bibliographically approved

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Ketzer, João Marcelo

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