Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy
AbstractThe 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. View Full-Text
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Sandfort, V.; Trabold, B.M.; Abdolvand, A.; Bolwien, C.; Russell, P.S.J.; Wöllenstein, J.; Palzer, S. Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy. Sensors 2017, 17, 2714.
Sandfort V, Trabold BM, Abdolvand A, Bolwien C, Russell PSJ, Wöllenstein J, Palzer S. Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy. Sensors. 2017; 17(12):2714.Chicago/Turabian Style
Sandfort, Vincenz; Trabold, Barbara M.; Abdolvand, Amir; Bolwien, Carsten; Russell, Philip S.J.; Wöllenstein, Jürgen; Palzer, Stefan. 2017. "Monitoring the Wobbe Index of Natural Gas Using Fiber-Enhanced Raman Spectroscopy." Sensors 17, no. 12: 2714.
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