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Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy

The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement using a single laser source. However, practical i...

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Autores principales: Sandfort, Vincenz, Trabold, Barbara M., Abdolvand, Amir, Bolwien, Carsten, Russell, Philip St. J., Wöllenstein, Jürgen, Palzer, Stefan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5753068/
https://www.ncbi.nlm.nih.gov/pubmed/29186768
http://dx.doi.org/10.3390/s17122714
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author Sandfort, Vincenz
Trabold, Barbara M.
Abdolvand, Amir
Bolwien, Carsten
Russell, Philip St. J.
Wöllenstein, Jürgen
Palzer, Stefan
author_facet Sandfort, Vincenz
Trabold, Barbara M.
Abdolvand, Amir
Bolwien, Carsten
Russell, Philip St. J.
Wöllenstein, Jürgen
Palzer, Stefan
author_sort Sandfort, Vincenz
collection PubMed
description The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement using a single laser source. However, practical issues such as detection limit, gas exchange time and background Raman signals from the fiber material still pose obstacles to utilizing the scheme in real-world settings. This paper compares the performance of two types of hollow-core photonic crystal fiber (PCF), namely photonic bandgap PCF and kagomé-style PCF, and assesses their potential for online determination of the Wobbe index. In contrast to bandgap PCF, kagomé-PCF allows for reliable detection of Raman-scattered photons even below 1200 cm(−1), which in turn enables fast and comprehensive assessment of the natural gas quality of arbitrary mixtures.
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spelling pubmed-57530682018-01-10 Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy Sandfort, Vincenz Trabold, Barbara M. Abdolvand, Amir Bolwien, Carsten Russell, Philip St. J. Wöllenstein, Jürgen Palzer, Stefan Sensors (Basel) Article The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement using a single laser source. However, practical issues such as detection limit, gas exchange time and background Raman signals from the fiber material still pose obstacles to utilizing the scheme in real-world settings. This paper compares the performance of two types of hollow-core photonic crystal fiber (PCF), namely photonic bandgap PCF and kagomé-style PCF, and assesses their potential for online determination of the Wobbe index. In contrast to bandgap PCF, kagomé-PCF allows for reliable detection of Raman-scattered photons even below 1200 cm(−1), which in turn enables fast and comprehensive assessment of the natural gas quality of arbitrary mixtures. MDPI 2017-11-24 /pmc/articles/PMC5753068/ /pubmed/29186768 http://dx.doi.org/10.3390/s17122714 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sandfort, Vincenz
Trabold, Barbara M.
Abdolvand, Amir
Bolwien, Carsten
Russell, Philip St. J.
Wöllenstein, Jürgen
Palzer, Stefan
Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title_full Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title_fullStr Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title_full_unstemmed Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title_short Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
title_sort monitoring the wobbe index of natural gas using fiber-enhanced raman spectroscopy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5753068/
https://www.ncbi.nlm.nih.gov/pubmed/29186768
http://dx.doi.org/10.3390/s17122714
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