New Total Sulphur Analyser Providing Accurate Sulfur Analyses for Improved Refinery Efficiency
Apr 16 2008
the United States Environmental Protection Agency (EPA). These regulations dictate strict limitations on the sulphur content levels in automotive fuels. Ultralow sulphur diesels are already in use across much of Europe and Asia, and are expected to become a viable alternative to mainstream fuels by 2010.
Traditionally, combustion and Ultra Violet Fluorescence (UV-F) have been used for accurate analysis of sulphur in motor fuels. However, even an optimised detector may identify nitrogen as nitrogen oxide, which emits at the same wavelength as sulphur dioxide, resulting in inaccurate analysis. Low Cetane ultra low sulphur diesel fuel is usually spiked with Cetane Improver (2-EHN) to boost the Cetane number. When analysing sulphur in fuel oil using UV-F detection technique this 2-EHN component can cause inaccurate detection of higher sulphur content than truly exists, and consequently has a cost impact when it comes to refinery operation planning.
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