S (Sulfur) compounds presence in fuel increases toxicity of the exhausted gases due to high sulfur oxides concentration and solid particle presence, as well as due to spoiling effectiveness of catalysts for afterburning carbon monoxide, unburned hydrocarbons and hazardous nitrogen oxides.
Sulfur presence badly influences the quality of petroleum products. Therefore oil and automotive fuel is graded dependent on sulfur content. Sulfur content is also controlled in marine fuel, jet fuel, aviation benzene, residual fuel oil.
Sulfur determination in petroleum and petroleum products
X-ray fluorescence analysis is an arbitral method of sulfur mass content determination in various types of fuel.
Test method of Sulfur determination in oil, automotive fuel, jet fuel, marine fuel, aviation benzene is specified in ASTM D4294-98.
Test method of Sulfur determination in high class automotive fuel is specified in EN ISO 20884:2011.
Both standards specify Sulfur mass content determination without sample preparation – petroleum or petroleum products are simply filled in a sample cup.
There are some standards, which specify sulfur determination in petroleum and petroleum products with wavelength dispersive and energy dispersive spectrometers.
ISO 20847-2004 specifies an energy dispersive X-ray fluorescence (EDXRF) test method for the determination of the sulfur content of motor gasolines, including those containing up to 2,7 % (m/m) oxygen, and of diesel fuels, including those containing up to 5 % (V/V) fatty acid methylester (FAME), having sulfur contents in the range 30 mg/kg to 500 mg/kg.
Test method of Sulfur determination in oil, automotive fuel, jet fuel, marine fuel, aviation benzene is specified in ASTM D4294-98.
Test method of Sulfur determination in high class automotive fuel is specified in EN ISO 20884:2011.
Both standards specify Sulfur mass content determination without sample preparation – petroleum or petroleum products are simply filled in a sample cup.
There are some standards, which specify sulfur determination in petroleum and petroleum products with wavelength dispersive and energy dispersive spectrometers.
ISO 20847-2004 specifies an energy dispersive X-ray fluorescence (EDXRF) test method for the determination of the sulfur content of motor gasolines, including those containing up to 2,7 % (m/m) oxygen, and of diesel fuels, including those containing up to 5 % (V/V) fatty acid methylester (FAME), having sulfur contents in the range 30 mg/kg to 500 mg/kg.
"SPECTROSCAN MAKC-GVM" WDXRF spectrometer determines elements from Na (Sodium) to U (Uranium) in solids, liquids or powders, in solutions and thin films, deposits on filters.
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Energy dispersive X-ray fluorescent analyzer EDXRF of sulfur in petroleum and petroleum products.
Wavelength dispersive X-ray fluorescent WDXRF analyzer for sulfur determination in automobile fuel as well as in petroleum and petroleum products.