Accession Number : AD1032950


Title :   Quantification of Sulfur in Mobility Fuels


Descriptive Note : Technical Report,01 Jan 2016,31 Dec 2016


Corporate Author : Naval Research Laboratory Washington United States


Personal Author(s) : Fisher,Brian T ; Cramer,Jeffrey A ; Hammond,Mark H ; Hinnant,Katherine M ; Morris,Robert E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1032950.pdf


Report Date : 20 Apr 2017


Pagination or Media Count : 45


Abstract : Methods to quantify sulfur in mobility fuels, particularly for concentrations below 10 ppm, were examined and evaluated at the Naval ResearchLaboratory (NRL). Work was divided into three primary thrusts: infrared (IR) spectroscopy for direct liquid-phase analysis, electrochemicalSO2measurements, and optical SO2 measurements. Much of the work focused on SO2 as a single analyte that could be produced via lean combustionof liquid fuel. Results showed that IR spectroscopy does not have a sufficient, generalized sensitivity toward the range of sulfur compounds typicallyfound in liquid fuels. Cermet (ceramic-metallic) sensor measurements showed promise in terms of response and sensitivity to SO2, but the sensorprogressively degraded and became completely unresponsive. For combustion exhaust gas analysis, conventional NDIR (non-dispersive infrared)instruments do not have sufficient sensitivity to SO2, whereas UVF (ultraviolet fluorescence) instruments have the required sensitivity but sufferfrom performance issues related to other combustion products present (NO, CO, and unburned hydrocarbons). A commercial electrochemicalSO2 sensor showed promise, but might not have sufficient sensitivity and exhibited significant cross-sensitivity to other combustion products.


Descriptors :   Sulfur , fuels , ELECTROCHEMISTRY , detectors , ABSORPTION , FLUORESCENCE , CERMETS , INFRARED SPECTROSCOPY , Voltammetry , models , detection , combustion products


Subject Categories : Physical Chemistry
      Fuels
      Atomic and Molecular Physics and Spectroscopy
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE