Interband cascade laser arrays for simultaneous and selective analysis of C1-C5 hydrocarbons in the petrochemical industry
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The detection and measurement of hydrocarbons is of high interest for a variety of applications, for example within the oil & gas industry from extraction throughout the complete refining process, as well as for environmental monitoring and for portable safety devices. This paper presents a highly sensitive, selective and robust tunable laser analyzer that has the capability to analyze several components in a gas sample stream. More specifically, a multi-gas system for simultaneous detection of C1 to iC5 hydrocarbons, using a room temperature distributed feedback interband cascade laser array, emitting in the 3.3 micrometer band has been realized. It combines all the advantages of the tunable laser spectroscopy method for a fast, sensitive and selective in-line multicomponent tunable laser analyzer. Capable of continuous and milliseconds fast monitoring of C1-iC5 hydrocarbon compositions in a process stream, the analyzer requires no consumables (e.g. purging, carrier gas) and no in-field calibration, enabling a low cost of ownership for the analyzer. The system was built, based on an industrial GasEye series platform and deployed for the first time in field at Preem refinery in Lysekil, Sweden in autumn 2018. Results of the measurement campaign and comparison with gas chromatography instrumentation is presented.
Scheuermann , J , Kluczynski , P , Siembab , K , Straszewski , M , Kaczmarek , J , Weih , R , Fischer , M , Koeth , J , Schade , A & Höfling , S 2020 , ' Interband cascade laser arrays for simultaneous and selective analysis of C1-C5 hydrocarbons in the petrochemical industry ' , Applied Spectroscopy , vol. Accepted Manuscripts . https://doi.org/10.1177/0003702820978230
Copyright © 2020 the Author(s). This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1177/0003702820932229.
DescriptionFunding: European Union Horizon 2020 research and innovation programme under grant agreement No 636930 (iCspec).
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