1. Infrared monitoring of underground CO2 storage using chalcogenide glass fibers
- Author
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Jean-Luc Adam, Bruno Bureau, Frédéric Charpentier, Karine Michel-Le Pierrès, Johann Troles, Frédéric Smektala, Catherine Boussard-Plédel, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Environment French agency (ADEME), national geological survey (BRGM), Institut des Sciences Chimiques de Rennes ( ISCR ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Ecole Nationale Supérieure de Chimie de Rennes-Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Bureau de Recherches Géologiques et Minières (BRGM) ( BRGM ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB)
- Subjects
Optical fiber ,Absorption spectroscopy ,Infrared ,Chalcogenide ,Chalcogenide glass ,02 engineering and technology ,01 natural sciences ,law.invention ,010309 optics ,Inorganic Chemistry ,chemistry.chemical_compound ,Optics ,Infrared signature ,law ,0103 physical sciences ,CO2 storage ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Spectroscopy ,Optical path length ,business.industry ,Attenuation ,Global warming ,Organic Chemistry ,[CHIM.MATE]Chemical Sciences/Material chemistry ,021001 nanoscience & nanotechnology ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,chemistry ,13. Climate action ,[ CHIM.MATE ] Chemical Sciences/Material chemistry ,Optical sensor ,0210 nano-technology ,business - Abstract
International audience; An optical-fiber-based system suitable for monitoring the presence of carbon dioxide, so-called "greenhouse gas", is investigated. Since each pollutant gas shows a characteristic optical absorption spectrum in the mid-infrared (mid-IR), it is possible to detect selectively and quantitatively the presence of gases in a given environment by analysing mid-IR spectra. The main infrared signature of carbon dioxide gas is a double absorption peak located at 4.2 μm. Chalcogenide optical fibers, which can transmit light in the 1-6 μm range, are well-adapted for CO2 analysis. In this wavelength range, they show attenuation losses that compare favourably with other types of fiber such as silver halide fibers. In this paper, the detection limit of CO2 is established as a function of optical path length. The dynamic parameters of the sensors, such as reversibility, response time and recovery time, are also studied. It is concluded that optical fibers based on chalcogenide glasses could be used to transport infrared light from a black body source to a remote CO2 geological storage zone in order to monitor, in real time, CO2 gas leakage.
- Published
- 2009