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Applications
  • Carbon Black Unit
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​​Partial combustion - furnace process
      ​Percent O2
      ​0-5%
      ​C.B + H.C + CO
      NA
      3000-Series
      (dirty application)
  • CDU / VDU Heaters
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Stack gas / CEM Appl
      ​PPM NOX / SOX
      ​0-500 ppm
      ​Stack gas
      9110TH / 6000 (UV)
  • Cooling Tower Water
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Hydrocarbon breakthrough
      ​PPM hydrocarbons
      ​0-10 ppm
      Water
      ​
  • Crude & Vacuum Distillation Units - CDU & VDU
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Color analysis / Diesel product
      ​​2 Naphtha pump around to Atm crude tower
      ​ASTM / APHA / Saybolt
      ​Pr​oduct dependent
      ​Fuel oil ​
      Light naphtha
      6000 (UV)
  • Fluid Catalytic Cracker Unit - FCCU - 1st & 2nd Stage Regenerator Cyclones​
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Catalyst Regeneration
      ​Percent O2
      ​Percent CO
      ​Percent O2
      ​0-1%
      ​0-1%, 0-10%
      ​0-1, 0-5, 0-25%
      ​Flue gas
      7500ZA / 3110P
      3000-Series, 
      7500Z (NDIR) 
      plus sample system

      Continuous Catalytic Reformer - CCR: See application note in Petrochemical​ for Aromatic Plant

    • ​Flue gas / stack incinerator
      ​Percent O2 & SO2
      ​0-5% O2 & 0-1%

      -​

      6000 / 3000PA UV (SO2) (O2)
    • ​Desulfide separator vent gas
      ​Percent O2
      ​0-25%
      ​Process gas
      3020M Paramagnetic
  • Hydrocracker Unit
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Recycled gas compressor suction
      ​​Percent H2
      ​​50-100%
      ​​Hydrocarbons
    • ​Make-up gas
      ​​Percent H2
      ​​50-100%
      ​​Hydrocarbons
    • ​Total gas downstream confluence point
      ​​Percent H2
      ​​50-100%
      ​​Hydrocarbons
  • Isomerization Unit
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Recycle gas
      ​Percent H2
      ​50-100%
      ​C1, C2, C3+
    • ​Process gas / "Burn off only"
      ​Percent O2
      ​0-5%
      ​N2, CO2
  • Methanol / MTBE
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Purge gas to reformer
      ​​​Percent H​2
      ​​70-100%
      ​CH4 / CO2 / CH3OH
    • ​Methanol convertor effluent
      ​​​Percent H​2
      ​​70-100%
      ​​CH4 / CO2 / CO / N2
    • ​Circulator gas compressor
      ​​​Percent H​2
      ​​70-100%
      ​​CH4 / CO2 / CO / N2
    • ​Net gas from knockout pot
      ​​​Percent H​2
      ​50-100%
      ​C1, C2, C3, C4
    • ​Reactor column - purification
      ​Percent CH3OH
      ​0-2%
      ​MTBE
      NA 5020 (NIR)
    • ​MTBE in gasoline
      ​Percent MTBE
      ​0-20%
      ​Gasoline
      NA
      7320 (NDIR)

  • PSA Unit
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​H2 purification off gas
      ​PPM CO
      ​0-10 ppm
      ​H2
      7500ZA NDIR Series
  • Sulfur Recovery Unit (SRU)
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Flue gas to SRU stack incinerator
      ​Percent O2 & SO2
      ​0-5% O2
      0-1% SO2
      ​Flue gas
      3000PA / 6000 (O2) UV (SO2)
  • Tail Gas Treating Unit (TGTU)
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​SCOT quencher overhead
      ​Percent H2
      ​0-4, 0-8%
      ​N2 / CO2 / H2S
    • ​Recycle gas compressor discharge
      ​​n/a
      ​70-100%
      ​CH4, H2S + trace HC
    • ​Recycle gas to gas scrubber
      ​Percent H2S
      ​0-5%
      ​H2, CH4, H2O
      6000 (UV)
    • ​Recycle gas scrubber overhead
      ​PPM H2S
      ​0-2,000 ppm
      ​H2, CH4, H2O
      6000 (UV)
  • Wastewater Treatment Unit (WWTU)
    • Service
      Parameter(s)
      Range(s)
      Background
      Model
      ​Setting pond / Drain channel
      ​Oil
      ​0-10 ppm
      ​Rain run-off, etc.
    • ​API SINK
      ​​n/a
      0-100 ppm
      ​Catch basin