Detection and quantification of sulfur in oil products by laser-induced breakdown spectroscopy for on-line analysis

Abstract : Determination of sulfur in petroleum products is described using Laser Induced breakdown spectroscopy (LIES). A study of buffer gases employed to improve sulfur IR line detection is presented. Optimisation of the flow rate led to a 1.4 L/min optimal helium flow rate. An adaptation between a typical laboratory setup to a compact system allowed to obtain detection limits in the 0.2% w/w range. Calibration is made under the process conditions (70 degrees C) and at room temperature. Normalization with a helium emission line compensates for liquid level variations and for the temperature variations. The analysis of a sample over the course of 2 days under the conditions of the industrial process was tested and gave a good repeatability
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Submitted on : Tuesday, August 30, 2016 - 3:16:29 PM
Last modification on : Thursday, February 7, 2019 - 2:27:07 PM

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Florian Trichard, Valérian Forquet, Nicole Delépine-Gilon, C. P. Lienemann, Franck Baco-Antoniali. Detection and quantification of sulfur in oil products by laser-induced breakdown spectroscopy for on-line analysis. Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier, 2016, 118, pp.72-80. ⟨10.1016/j.sab.2016.02.001⟩. ⟨hal-01357854⟩

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