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Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment

The increase in fatal accidents and chronic illnesses caused by hydrogen sulfide (H(2)S) exposure occurring in various workplaces is pushing the development of sensing systems for continuous and in-field monitoring of this hazardous gas. We report here on the design and realization of a Near-IR quar...

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Autores principales: Olivieri, Mariagrazia, Menduni, Giansergio, Giglio, Marilena, Sampaolo, Angelo, Patimisco, Pietro, Wu, Hongpeng, Dong, Lei, Spagnolo, Vincenzo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9792567/
https://www.ncbi.nlm.nih.gov/pubmed/36582842
http://dx.doi.org/10.1016/j.pacs.2022.100438
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author Olivieri, Mariagrazia
Menduni, Giansergio
Giglio, Marilena
Sampaolo, Angelo
Patimisco, Pietro
Wu, Hongpeng
Dong, Lei
Spagnolo, Vincenzo
author_facet Olivieri, Mariagrazia
Menduni, Giansergio
Giglio, Marilena
Sampaolo, Angelo
Patimisco, Pietro
Wu, Hongpeng
Dong, Lei
Spagnolo, Vincenzo
author_sort Olivieri, Mariagrazia
collection PubMed
description The increase in fatal accidents and chronic illnesses caused by hydrogen sulfide (H(2)S) exposure occurring in various workplaces is pushing the development of sensing systems for continuous and in-field monitoring of this hazardous gas. We report here on the design and realization of a Near-IR quartz-enhanced photoacoustic sensor (QEPAS) for H(2)S leaks detection. H(2)S QEPAS signal was measured in matrixes containing up to 1 % of methane (CH(4)) and nitrogen (N(2)) which were chosen as the laboratory model environment for leakages from oil and gas wells or various industrial processes where H(2)S and CH(4) can leak simultaneously. An investigation of the influence of CH(4) on H(2)S relaxation and photoacoustic generation was proposed in this work and the sensor performances were carefully assessed with respect to CH(4) content in the mixture. We demonstrated the high selectivity, with no cross talk between H(2)S, H(2)O and CH(4) absorption lines, high sensitivity, and fast response time of the developed sensor, achieving a minimum detection limit (MDL) of 2.5 ppm for H(2)S with 2 s lock-in integration time. The employed 2.6 µm laser allowed us to employ the sensor also for CH(4) detection, achieving an MDL of 85 ppm. The realized QEPAS sensor lends itself to the development of a portable and compact device for industrial monitoring.
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spelling pubmed-97925672022-12-28 Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment Olivieri, Mariagrazia Menduni, Giansergio Giglio, Marilena Sampaolo, Angelo Patimisco, Pietro Wu, Hongpeng Dong, Lei Spagnolo, Vincenzo Photoacoustics Research Article The increase in fatal accidents and chronic illnesses caused by hydrogen sulfide (H(2)S) exposure occurring in various workplaces is pushing the development of sensing systems for continuous and in-field monitoring of this hazardous gas. We report here on the design and realization of a Near-IR quartz-enhanced photoacoustic sensor (QEPAS) for H(2)S leaks detection. H(2)S QEPAS signal was measured in matrixes containing up to 1 % of methane (CH(4)) and nitrogen (N(2)) which were chosen as the laboratory model environment for leakages from oil and gas wells or various industrial processes where H(2)S and CH(4) can leak simultaneously. An investigation of the influence of CH(4) on H(2)S relaxation and photoacoustic generation was proposed in this work and the sensor performances were carefully assessed with respect to CH(4) content in the mixture. We demonstrated the high selectivity, with no cross talk between H(2)S, H(2)O and CH(4) absorption lines, high sensitivity, and fast response time of the developed sensor, achieving a minimum detection limit (MDL) of 2.5 ppm for H(2)S with 2 s lock-in integration time. The employed 2.6 µm laser allowed us to employ the sensor also for CH(4) detection, achieving an MDL of 85 ppm. The realized QEPAS sensor lends itself to the development of a portable and compact device for industrial monitoring. Elsevier 2022-12-13 /pmc/articles/PMC9792567/ /pubmed/36582842 http://dx.doi.org/10.1016/j.pacs.2022.100438 Text en © 2022 The Authors. Published by Elsevier GmbH. https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Olivieri, Mariagrazia
Menduni, Giansergio
Giglio, Marilena
Sampaolo, Angelo
Patimisco, Pietro
Wu, Hongpeng
Dong, Lei
Spagnolo, Vincenzo
Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title_full Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title_fullStr Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title_full_unstemmed Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title_short Characterization of H(2)S QEPAS detection in methane-based gas leaks dispersed into environment
title_sort characterization of h(2)s qepas detection in methane-based gas leaks dispersed into environment
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9792567/
https://www.ncbi.nlm.nih.gov/pubmed/36582842
http://dx.doi.org/10.1016/j.pacs.2022.100438
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