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Part No: ATACSULFAR |
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| 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. |
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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.
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| The So2 gives off
light at a specific wavelength of 394nm. cut off filter installed between the
burner and photo multiplier allows this specific wavelength to be measured.
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Online measurement of total Sulfur to ASTM D7041-04 |
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Correlation to ASTM D5453 |
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Low range sensitivity (0-10ppm) |
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Enhanced precision at 10ppm - when compared to UV method |
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Low maintenance - Removal of water not required |
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| For full data sheets
and a written quotation please contact our Mindex office on
sales@mindex-ltd.co.uk including
your company name, telephone numbers and details of your product of
interest |
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