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InfraCal TOG/TPH Analyzers for Oil and Grease Measurements

InfraCal TOG/TPH Analyzers for Oil and Grease Measurements. www.WilksIR.com. Portable Field or Lab Analyzer Results in < 30 seconds Rugged and Easy to Use Over 2000 in use worldwide today. Off shore oil rigs Refineries Industrial Wastewater

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InfraCal TOG/TPH Analyzers for Oil and Grease Measurements

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  1. InfraCal TOG/TPH Analyzers for Oil and Grease Measurements www.WilksIR.com

  2. Portable Field or Lab Analyzer • Results in < 30 seconds • Rugged and Easy to Use • Over 2000 in use worldwide today

  3. Off shore oil rigs • Refineries • Industrial Wastewater • Metal Parts Cleaning

  4. Monitoring Using an Offsite Lab = Delayed Results

  5. Monitoring Using an Offsite Lab • Typical commercial laboratory turn around - two days to two weeks • In-house hexane/gravimetric—several hours • Results in the discharge of effluent above regulatory limit for extended time • Add costs in time and dollars

  6. Non Compliance • The sooner the industry or regulating agency can detect non compliance • The sooner the problem can be corrected

  7. What is needed: A quick, accurate and simple field and/or in-plant analysis: Available with the InfraCal TOG/TPH Analyzer

  8. Two different models available depending on desired measurement range and extraction solvent Model CVH Model HATR-T2

  9. Measuring Oil in Water withthe InfraCal TOG/TPH Analyzer • Acidify sample to pH of 2 • Add 10 ml solvent to 100ml sample (10 to 1 ratio) • Shake for 2 minutes • A portion of the solvent is presented to the analyzer for analysis

  10. Basic Measurement Concept Infrared Analysis: Hydrocarbons have a characteristic absorbance in the infrared region: 2930 cm-1 or 3.4 microns

  11. Spectrum of a hydrocarbon (red) Overlaid with a 3.4 micron filter (black)

  12. Infrared Absorbance The amount of energy absorbed is proportional to the amount of oil/grease in the sample: A higher oil and grease concentration has a higher infrared absorbance A lower oil and grease concentration has a lower infrared absorbance

  13. The Measurement of Oil using Hexane Model HATR-T2

  14. The hexane evaporates leaving an oil film on the crystal

  15. Infrared light (source) is focused on the end of the crystal

  16. The infrared light reflects off the surface of the crystal

  17. At each reflection, the infrared light penetrates into the oil film and is absorbed by the oil at 2930cm-1 Infrared light Oil Film

  18. The infrared light is focused on to a detector containing a 2930cm-1 filter

  19. A higher oil and grease concentration has a higher infrared absorbance A lower oil and grease concentration has a lower infrared absorbance

  20. Preset timer allows hexane to evaporate • After timer countdown and 15 second run time • Value is displayed

  21. Cleaning the Trough Crystal • Add enough solvent to cover crystal • Wipe slowly across the crystal

  22. Analysis Procedure • The whole analysis, from sample collection to final result, takes under 15 minutes • An operator with minimal training can do the analysis

  23. Measurement Range • Hexane extraction: 10- 300 ppm* *the upper limit can be extended by dilution

  24. Repeatability of the Hexane/Infrared Method Repeated runs on same sample: + 01 Independent applications of sample: + 02 Independently prepared samples: +03* * Repeatability is dependent on how carefully the analyst does the extraction

  25. The Measurement of Oil using S-316 or Perchloroethylene Model CVH

  26. ASTM Infrared Oil and Grease Method to replace Freon/IR Method ASTM Method D7066-04: Standard Test Method for dimer/trimer of chlorotrifluoroethylene (S-316) Recoverable Oil and Grease and Nonpolar Material by Infrared Determination

  27. ASTM Method D 7066-04 • Uses a transmission cell - Model CVH • Measures volatile constituents

  28. The Measurement of IR Absorption ofan Oil Sample with a Cuvette InfraRed light passes through the cuvette filled with solvent from the sample extract

  29. The infrared light is focused on to a detector containing a 2930cm-1 filter The amount of IR energy absorbed by the sample correlates to the concentration of oil and grease in the sample

  30. Cuvette is filled with solvent extract

  31. Cuvette is placed in the analyzer After 30 seconds,Oil and Grease value is displayed

  32. Measurement Range • S-316 or Perchloroethylene: 2 -300 ppm* *the upper limit can be extended by dilution

  33. Repeatability of the S-316 or perc/Infrared Method Repeated runs on same sample: + 01 Independent applications of sample: + 01 Independently prepared samples: +02* * Repeatability is dependent on how carefully the analyst does the extraction

  34. Comparing Different Analytical Procedures

  35. Oil and Grease • Not a unique chemical entity • A mixture of chemical species that vary from source to source • It is defined by the analytical procedure, ie: infrared, gravimetric, GC/FID

  36. Comparing Different Analytical Procedures • Infrared • Gravimetric • Gas Chromatograph/Flame Ionization Detector (GC/FID) • Ultra Violet Each method measures different physical properties

  37. What is Measured What is Not Measured Technology All analytes removed from the samples by the extraction solvent that contain a C-H stretching absorption. All analytes removed from the sample by the extraction solvent that are not volatilized. All analytes removed from the sample by the extraction solvent that can be chromatographed and that respond to the detector. Aromatics only Very polar organics Volatiles Very polar or involatile compounds depending on choice of column, temperature program, time, etc. Aliphahtics Infrared Gravimetry GC/FID Ultra Violet

  38. Note: Ultraviolet (UV) measures only the aromatic hydrocarbons in a water sample. If the aromatic/ aliphatic ratio changes, the reading will not be correct. Infrared measure both the aromatic and the aliphatic hydrocarbons.

  39. Comparison of Hexane/Infrared and Hexane/Gravimetric Meat Packing Plant Infrared Gravimetric Sample 1 67 ppm 70 ppm Sample 2 1990 2020 After Grease Trap at a Restaurant Sample 1 423 415 Sample 2 332 300 Sample 3 103 130 Sample 4 157 170 Sample 5 67 74

  40. Same Samples, Three Different Laboratories InfraCalInfraCal        Lab 1           Lab 2 Lab 3 Wilks         Customer 51      49 67              23 51 62              61             74               43 47 71              --              76               70 49 63             53             66                 55 40 3                1               14                7 <5

  41. Using this simple and quick infrared procedure, operators of a pretreatment system can: • Quickly and easily assess their system’s efficiency • Take samples before and after treatment • Change their system’s parameters and immediately test the results of their changes • See how their system functions under heavy loads • Avoid discharging effluent that is above the regulatory limit

  42. Oil and Grease Analysis with the InfraCal TOG/TPH Analyzers For questions or more information: info@WilksIR.com 203-855-9136 www.WilksIR.com

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