Improved Solid State Hydrogen-specific Analyzing Systems

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This presentation was delivered at the 55th Annual Symposium of the Analysis Division by Prabhu Soundarrajan. Mr. Soundarrajan is currently the director for ChemPID division at ISA and is the Growth Leader for gas sensor business at LumaSense Technologies. Prabhu Soundarrajan is leading development and commercialization of infrared and photo acoustic gas analyzers based to chemical, petroleum, energy, cleantech, medical and utility markets.

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Improved Solid State Hydrogen-specific Analyzing Systems

  1. 1. Session 2 / AD.10.02.01 Improved S lid St t Hydrogen I d Solid-State H d Specific Analyzing Systems Prabhu Soundarrajan, Vikas Lakhotia H2scan Corporation, Valencia, California, USAAnalytical Solutions in a “Not So Big Easy” Economic EnvironmentThe 55th Annual Symposium of the Analysis DivisionNew Orleans, Louisiana, USA; 25-29 April 2010
  2. 2. Presentation Outline• Technology Background and Overview• Analyzer Performance and Improved Specifications• New Developments• References and Field Data• Conclusions AD 2010: Analysis Division Symposium Slide 2 New Orleans, LA, USA; 25-29 April 2010
  3. 3. Technology Background• Hydrogen specific solid-state analyzer technology for H2 measurement from 0 5% to 100% v/v. 0.5% v/v• Palladium – Nickel alloy films provide high stability• Advanced material coatings for continuous operation in harsh contaminant environments• Temperature control loop compensates for external fluctuations• Sensor capable of operation i N2 O2 other i t gas b k S bl f ti in N2, O2, th inert backgrounds d and multi-component gas streams• Quick and easy integration AD 2010: Analysis Division Symposium Slide 3 New Orleans, LA, USA; 25-29 April 2010
  4. 4. Solid State Hydrogen Sensors Sensors Utilize the Unique Interaction of Hydrogen with P ll di H d ith Palladium H2 Pd HMolecular hydrogen (H2) adsorbs Atomic hydrogen is reversiblyon palladium and dissociates into absorbed into palladium atomic hydrogen (2H) proportional to H2 partial pressure AD 2010: Analysis Division Symposium Slide 4 New Orleans, LA, USA; 25-29 April 2010
  5. 5. Detection Mechanisms Absorption in Palladium is Specific to Hydrogen Hydrogen increases Interfacial hydrogen bulk resistivity shifts charge density∆R / R ∆C 0.5 100 15 5000 % H2 ppm H2 Resistor Capacitor AD 2010: Analysis Division Symposium Slide 5 New Orleans, LA, USA; 25-29 April 2010
  6. 6. Improved In-Line Process Hydrogen Analyzer In Line • Hydrogen specific: 0.5% H2 to 100% H2 v/v • Response ti R time (T90) < 30 sec • Accuracy(*): ± 0.15% absolute for 0.5 to 10% H2 ± 0.50% absolute for 10 to 100% H2 • Unique models for CO, H2S q , • 4-20mA, RS422 or RS232 serial connectivity • On-site verification and calibration • Approved for hazardous locations pp – Intrinsically safe design • Cost effective to buy / install / maintain • Adaptation to NeSSITM Platform (Designs in place with Swagelok, Circor, EIF, and Parker) g , , , ) * Applicable under process conditions stated in datasheet AD 2010: Analysis Division Symposium Slide 6 New Orleans, LA, USA; 25-29 April 2010 6
  7. 7. Process Hydrogen Analyzing System (AS) Accurate measurement in multi- component gas streams No requirement for carrier or reference gas Real time H2 specific measurement Compatible with legacy sample systems Recommended Verification: 90 days NEMA 4 weather-proof enclosure Installations: Exxon Mobil, Billings (pending) Air Liquide, ASU, Apr. ‘09. AD 2010: Analysis Division Symposium Slide 7 New Orleans, LA, USA; 25-29 April 2010
  8. 8. Analyzer P f A l Performance and d Improved SpecificationsAnalytical Solutions in a “Not So Big Easy” Economic EnvironmentThe 55th Annual Symposium of the Analysis DivisionNew Orleans, Louisiana, USA; 25-29 April 2010
  9. 9. Process Analyzer Specifications y pNotes:Sensor performance specifications are only valid for units configured for a maximum 65 oCProcess stream temperature. All figures assume pressure compensation, operating in ambientThat do not contain Oxygen and are in addition to any errors in the calibration gases used.Accuracy is specified for serial port output only. AD 2010: Analysis Division Symposium Slide 9 New Orleans, LA, USA; 25-29 April 2010
  10. 10. H2scan Accuracy and Linearity Linearity maintained from 0 – 100% y AD 2010: Analysis Division Symposium Slide 10 New Orleans, LA, USA; 25-29 April 2010
  11. 11. H2scan sensor repeatability AD 2010: Analysis Division Symposium Slide 11 New Orleans, LA, USA; 25-29 April 2010
  12. 12. Analyzer Stability 102 101 Stability in 100% H2 Test Gas Stability in 100% H2 Test Gas 100 99 Drift = 0.5% H2 / month 98% 2  H 97 96 95 Analyzer provides accurate measurement for H2 Process Control  (Barometric pressure corrected readings) 94 93 92 0 5 10 15 20 25 30 Time (Days) AD 2010: Analysis Division Symposium Slide 12 New Orleans, LA, USA; 25-29 April 2010
  13. 13. Improved Contaminant Tolerance I dC t i tT l and New DevelopmentsAnalytical Solutions in a “Not So Big Easy” Economic EnvironmentThe 55th Annual Symposium of the Analysis DivisionNew Orleans, Louisiana, USA; 25-29 April 2010
  14. 14. % Level CO Tolerance 1110.000 N2 bkg 20%CO bkg N2 bkg 1108.000 1108 000 (4) (1) 100% N2 1106.000 (4) (2) 1000ppm H2/ bkg. (3) 1%H2 / bkg. 1104.000 (4) 10%H2 / bkg. e is n e d i]R s ta c [P -N - 1102.000 1102 000 1100.000 1098.000 1096.000 (3) (3) 1094.000 (2) (2) 1092.000 (1) tickmarks = 5 hrs (1) 1090.000 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Time (Hours) Testing performed at Sandia National Labs AD 2010: Analysis Division Symposium Slide 14 New Orleans, LA, USA; 25-29 April 2010
  15. 15. % Level CO Tolerance (Contd.) ( ) Testing performed at Sandia National Labs AD 2010: Analysis Division Symposium Slide 15 New Orleans, LA, USA; 25-29 April 2010 H2scan Confidential
  16. 16. Performance in %H2S Streams UOP data provided to H2scan Notes (Test duration: 4 days): Sensor exposed to H2S blend  8 hours per day Sensor exposed to H2S blend ~ 8 hours per day Rest of the day the sensor was exposed to 1%H2balance N2 AD 2010: Analysis Division Symposium Slide 16 New Orleans, LA, USA; 25-29 April 2010
  17. 17. Low ppm measurement capability(in Nitrogen ambient only) Under Development AD 2010: Analysis Division Symposium Slide 17 New Orleans, LA, USA; 25-29 April 2010
  18. 18. Certifications• ATEX IS Certification done on current products. UL Ex-proof certification underway on new products. AD 2010: Analysis Division Symposium Slide 18 New Orleans, LA, USA; 25-29 April 2010 18
  19. 19. Applications, Fi ld D t and A li ti Field Data d ReferencesAnalytical Solutions in a “Not So Big Easy” Economic EnvironmentThe 55th Annual Symposium of the Analysis DivisionNew Orleans, Louisiana, USA; 25-29 April 2010
  20. 20. Refinery and Petrochemical Applications Refinery Applications Petrochemical Applications Catalytic Reformers Catalytic Reformers Hydrogen in Recycle Gas Hydrogen in Recycle Gas Hydrocrackers Isomar Hydrogen i R H d in Recycle G l Gas Hydrogen in Recycle Gas Hydrogen Make-up Hydrogen Make-up Hydrotreaters Tatoray Hydrogen in Recycle Gas Hydrogen in Recycle Gas Hydrogen Make-up Hydrogen Make-up Light Naphta Isomerization Units Hydrogen in Recycle Gas New Applications Hydrogen Unit Hydrogen Optimization in Hydrogen Plants Hydrogen To header Refinery Hydrogen Management Other H2 in tail gas, PSA performance monitoring ( % CO) Purchased Hydrogen To header AD 2010: Analysis Division Symposium Slide 20 New Orleans, LA, USA; 25-29 April 2010
  21. 21. Data from Refinery Installation y 1) Trend with GC consistent 2) Plant and analyzer were out of service for a Regen 3) System pressure fluctuations attributed to variance 1 2 3 1 H2scan is the primary analyzer and has replaced obsolete analyzer and trends well with lab GC measurements (20 months in service) AD 2010: Analysis Division Symposium Slide 21 New Orleans, LA, USA; 25-29 April 2010 21
  22. 22. Refinery Installation – Example 1 (contd.) Reduced install cost labor and training cost,Field verification using standard gasesReplaced obsolete process analyzer(COSA) AD 2010: Analysis Division Symposium Slide 22 New Orleans, LA, USA; 25-29 April 2010
  23. 23. Refinery Installation – Example 2• Installed in Diesel Hydro treater (DHT) recycle loop using existing sample system• Replaced obsolete process analyzer (TCD)• Reduced install cost, labor and training AD 2010: Analysis Division Symposium Slide 23 New Orleans, LA, USA; 25-29 April 2010 H2scan Confidential 23
  24. 24. Reference ListCompany/ Customer Location Application Date InstalledUniversal Oil Products Uni ersal Oil Prod ts Des Plaines, Illinois,  Des Plaines Illinois Proprietary UOP  Proprietar UOP Installed since  Installed sin e (UOP) USA processes January 2008 ConocoPhillips Ponca City, Oklahoma Catalytic May 2008 Reformer Recycle y ConocoPhillips Ferndale Refinery,  DHT Recycle  February 2009 Washington Hydrogen Exxon Mobil Billings, Montana Recycle  Installation  Hydrogen d Pending P di Port  Jerome, France  Feb 2010 Air Liquide  Blytheville, Arkansas,  Air Separation  April 2009 USA PlanConocoPhillips R &D Bartlesville, Oklahoma H2 production  April 2009 lab test AD 2010: Analysis Division Symposium Slide 24 New Orleans, LA, USA; 25-29 April 2010 24
  25. 25. Summary• Hydrogen Specific Technology – Demonstrated capability for operation in harsh p p y p process environments (H2S, CO, CO2, H2O) – 0.5 to 100% H2 range, Response time (<30 sec), Accuracy ( (±0.5%), Minimal calibration ),• Cost Effective for the Process Industry – No routine maintenance – 10 year product life expectancy• Compact, Rugged, and Field Portable – On-site calibration Solid-state hydrogen sensors enable new monitoring applications through both enhanced capability and reduced cost AD 2010: Analysis Division Symposium Slide 25 New Orleans, LA, USA; 25-29 April 2010

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