Model sulfar - total sulfur analyser - cod. produto nv2546

Model sulfar - total sulfur analyser - cod. produto nv2546; ; ; the demand for on-line measurement of fuel sulfur in refineries is growing as environmental regulators enact more stringent limits on sulfur levels in motor fuels. availability of sweet crudes has decreased while legislation continues to lower the permissible levels of sulfur in motor fuels to decrease pollution. as these sulfur limits continue dropping, very few online process analysers can measure the total sulfur levels accurately and reliability but, the sulfar with a flame photometric detector (fpd) provides a field proven on-line method measuring total sulfur in fuels with ranges as low as 0 to 10ppm.; ; ; ; the basic design for the unique chromatograph application utilizes a liquid injection valve to inject a fixed amount of sample into a vaporizers. the sample carried out of this zone with hydrogen sweep gas. the vaporized sample is diluted with air prior to passing into the oxidation furnace. the furnace is maintain at 950 deg c and sample passes through a quartz glass tube internal to the furnace. the fuel sample is then presence of air and heat is oxidized to co2 so2 and h2o. the oxidised sample is the split and about 80% is vented through a precision vent valve. the remainder of the sample passes through the analytical column where the co2 is separated from the so2. the co2 will elute from the column first and will cause a quenching of the signal form the flame photometric detector. the column material si silco coated steel one eight inch external diameter, about 30 to 40 feet length.the column is attached from the splitter to the base of the flame photometer detector: the separated components pass through a quartz jet in the detector where they burned in hydrogen rich flame. ;