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    Pyro-Electrochemical On-Line Ultra Low Sulfur Analyzer

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    Current and upcoming regulations worldwide require maximum concentrations of sulfur in fuels to be in the range 10–50 mg/kg. This paper describes a new on-line analyzer for ultra low sulfur, the first to employ “Pyro-electrochemical” technology, which is significantly simpler than other pyrolysis methods such as Pyro-microcoulometry and Pyro-UV fluorescence.

    The technology is based on ASTM D 6920. The instrument is described with special reference to the modifications needed to adapt the technique to on-line analysis. Experimental results are given for long term stability, sensitivity, precision, speed and linearity of response, temperature stability, and sensitivity to nitrogen.


    ultra low sulfur, fuels, on-line process analyzers, thermal oxidation, pyrolysis, electrochemical sensors, nitrogen converters

    Author Information:

    Rhodes, JR
    Rhodes Consulting, Austin, TX

    Committee/Subcommittee: D02.03

    DOI: 10.1520/STP12001S