Quality Control of Pyrolysis Gasoline Using Near-Infrared Spectroscopy [Technical Document]
With a near-infrared spectrometer, the diene value (anhydrous maleic acid value) of pyrolysis gasoline (pygas) can be measured in under one minute!
Near-infrared spectrometer Technical Data 16 Petroleum Gasoline Fuel Pyrolysis Gasoline Pyrolysis gasoline (Pygas) is a byproduct of ethylene production and is unsuitable as a motor fuel due to the presence of undesirable conjugated diolefins. To eliminate this drawback, it is necessary to reduce the olefin content to below 2 mg/g using a Selective Hydrogenation Unit (SHU). The diene value (or Maleic Anhydride Value (MAV)) is typically determined by wet chemical analysis through the Diels-Alder reaction (UOP326-17). This wet chemical analysis method requires trained analysts to perform it over several hours. Near-infrared spectroscopy (NIRS) contrasts with this chemical analysis method and can be applied as a cost-effective, high-speed analytical technique to determine the diene value in pyrolysis gasoline.
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This is an application sheet for the metronome near-infrared spectrometer (NIRS). It is available for free download.
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Metrom AG, based in Herisau, Switzerland, is a leading company specializing in ion analysis with over 70 years of history. It provides products and services in more than 140 countries worldwide. Based on Swiss technology developed over many years, the equipment comes with a 3-year warranty.