Venture Gas Conditioning
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This document discusses siloxanes in landfill gas and their harmful impacts. It then summarizes Venture's gas conditioning system which uses selective regenerable adsorption to remove siloxanes and other contaminants from landfill gas. The system produces very low dew points and high removal rates of contaminants to protect engines. It has been successfully installed at several landfill gas to energy projects. Continuous siloxane monitoring allows optimized regeneration and maintenance.
Venture Gas Conditioning
- 2. Siloxanes?Siloxanes are used in household and commercial products
- 3. Siloxanes find their way into wastewater and solid waste
- 4. Siloxanes volatilize into landfill gas and digester gas
- 5. During combustion SiO2is formed
- 6. SiO2causes the adverse impacts encountered in LFG/DG utilizationImpacts of SiloxanesMicroturbines
- 8. Impacts of SiloxanesReciprocating Engines
- 9. Impacts of SiloxanesPostcombustion CatalystsFouling of catalyst media
- 10. Many examples of catalyst failures over the last 15 years
- 11. Limit of one manufacturer is 100 ppbVenture¡¯s Gas Conditioning SystemSelective Regenerable Adsorber
- 12. Typical Two or Three Bed Media Mix
- 13. Activated Alumina, silica gels, molecular sieves
- 14. No Carbon regeneration issues
- 15. Targeted for:
- 16. ±·²Ñ°¿°ä¡¯²õ
- 17. H2S
- 18. Moisture
- 19. SiloxanesVenture¡¯s Gas Conditioning SystemTime based regeneration
- 20. Original design
- 21. Now Process Control Based Regeneration
- 22. On-line, Near Real Time, Siloxane Monitoring
- 23. Photovac Sentry
- 24. GC Based
- 25. End of Cycle and End of LifeVenture¡¯s Gas Conditioning SystemProduces:Extremely low dew points(-40F or better)
- 26. 90% removal on ±·²Ñ°¿°ä¡¯²õ over 24 hour cycle
- 27. 75% removal of halides
- 28. 95%+ removal of H2S
- 30. Effluent siloxanes < 100 ppbv, Si
- 33. Normal oil change schedule
- 35. Normal overhaul scheduleVenture¡¯s Gas Conditioning SystemTwo Vessels
- 36. One on-line, other regen or standby
- 38. Heated Air, or
- 39. Waste Heat
- 40. 24 hour cycle time max
- 41. 1-2 year media life expectancy
- 42. Low Pressure (<10 psig)
- 43. High Pressure (up to 150 psig)
- 44. Turbine projectsVenture 2 Vessel Gas Conditioning Skid
- 45. Venture¡¯s Gas Conditioning System
- 46. Venture¡¯s Gas Conditioning SystemProjects (2009 ¨C Present):Veolia Energy - Coca-Cola Power Project; Atlanta, GA
- 47. DCO Energy - Sussex County, NJ
- 48. DCO Energy - APEX Landfill; Las Vegas, NV
- 49. Solar Turbines w/ SCRs
- 50. GSF Energy - Rumpke High BTU Gas Plant
- 51. IGRS - Niagara Falls, Ontario
- 52. IGRS - Trail Road, Ottawa
- 53. Ameresco - Chicopee, MA
- 54. Waste Management
- 55. Ridgewood Power - Olinda Study, 3 monthsVenture¡¯s Gas Conditioning SystemNiagara Falls, Ontario - Project Snap ShotLFG to Electricity Project
- 58. 4000 hrs top end overhauls
- 59. Plugs twice a month
- 60. Oil changes twice a month
- 62. Siloxanes causeVenture¡¯s Gas Conditioning SystemNiagara Falls (East Landfill)7800 hours in operation
- 63. Designed for 12 hour cycle (24)
- 64. Inlet (Raw gas):
- 65. 50 - 55mg/m3, siloxanes
- 66. 2500 mg/m3 NMOCs
- 67. 75 ¨C 90 ppmv, H2S
- 68. Targeted to do:
- 70. 75% NMOC removalVenture¡¯s Gas Conditioning SystemNiagara Falls (East Landfill)Actual Performance
- 71. averaging <0.1 mg/m3, Si (<100ppbv, Si)
- 72. <75 ppbv, Si over first 6 months
- 73. Still below 120 ppbv, Si to date (through 2/28/10)
- 74. ±·²Ñ°¿°ä¡¯²õ: Still achieving 85%-90% removal
- 75. 95% H2S removal
- 76. Normal plug change schedule
- 77. Normal oil change schedule
- 78. No Overhaul, none planed in foreseeable future
- 79. Payback: less than 1 yearPhotovac Sentry ? BenefitsContinuous monitoring of Siloxanes and VOC¡¯s
- 80. Optimizes preventive maintenance programs
- 81. Delivers fast return on investment
- 82. Eliminates costly and time-consuming lab analysis
- 83. Simple to operate¡quick and easy installationPhotovac Sentry ? ApplicationsMeasurement of siloxane concentrations in combustion exhaust
- 84. Control of Siloxane sorbent regeneration cycle
- 85. Product quality monitoring for high Btu gas plants
- 86. Fuel quality monitoring prior to combustionPhotovac Sentry ? Near Real Time ResultsTracks degradation of siloxane removal system
- 87. Alerts operator when regeneration is requiredUnit 1Unit 2Switch to unit 2 and regenerate unit 1Key MeasureableTime ->
- 88. Photovac Sentry ? ResultsProvides continuous, rapid feedback on condition of system controls
- 89. Eliminates premature regeneration due to guesswork
- 90. Minimizes damage to equipment
- 91. Maximizes system up time
- 92. Quick ROI
- 93. Easy operation and installation
- 94. SummaryVenture provides unsurpassed value. Venture¡¯s pricing is extremely competitive and we offer outstanding support.
- 95. Immediate support before, during, and after the sale.
- 96. Venture offers full engineering support design through build.
- 97. Gas Conditioning System built in Pittsburgh.
- 98. Named #1 fastest growing engineering company in Pittsburgh by the Pittsburgh Business Times.
- 99. Leadership team of 10 averages 20 years of engineering experience.
- 100. Process, Environmental, Electrical, Instrumentation and Control, and Civil/Structural Engineering groups.
- 101. www.ventureengr.com