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MicroMist TM Wet Scrubber Advanced Scrubbing Technology

MicroMist TM Wet Scrubber Advanced Scrubbing Technology. Ultra-High Efficiency Fossil Fuel Pollutant Capture. The MicroMist ™ Scrubber. Lower Energy Consumption - MicroMist System Typically Operates With Less Than 25” W.C. of Total Pressure Drop

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MicroMist TM Wet Scrubber Advanced Scrubbing Technology

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  1. MicroMistTMWet ScrubberAdvanced Scrubbing Technology Ultra-High Efficiency Fossil Fuel Pollutant Capture

  2. The MicroMist™ Scrubber

  3. Lower Energy Consumption - MicroMist System Typically Operates With Less Than 25” W.C. of Total Pressure Drop Lower Equipment Costs than Standard Scrubbing High Capture Efficiencies on Acid Gasses & Submicron Particulate High Capture Efficiencies on Condensable Compounds Retrofits on Existing Equipment = Minimal Down Time Proven Results! Benefits of MicroMistTMScrubbing Technology

  4. Sequence of Scrubbing “Events” Quenching and Sub-Cooling Patented System Employing Fine Droplets Uses Proprietary Dual-Nozzle Contact Trays, High Efficiency Mist Eliminators with Irrigation Lower System Pressure Drop Affects the Ability to Scrub Fine Particulate, Acid Gases, and Heavy Metals in “One System” Water Management and Experience High Flexibility for Varying Gas Flow What’s Different?

  5. Conventional Scrubbers DIRTY SCRUBBER EXHAUST PROCESS EHAUST • Low Particulate Collection Efficiency • Inefficient Energy Use (>70” W.C.) • Atomization of Particulate Collection Affects Draft • Poor Turn-Down • Little Effect on Condensable Compounds • Difficult Solids Control WATER SEPARATOR STAGE VENTURI STAGE SATURATED GASSES DRAIN DRAIN

  6. Clean Gas Flue Gas MicroMistTM Scrubber • High Particulate Collection Efficiency (>99.5%) • High Capture Efficiency of Acids & Condensable Compounds (>98.9%) • High Capture Efficiency of Heavy Metals (95% - 99% + ) • Energy Efficient (System ∆P <25” WC) • Atomization for Particulate Collection Independent of Draft • Excellent Turn-Down • Superior Solids Control & Segregation

  7. Stage 1: Quench Clean Gas Flue Gas • Quenching Upstream of True Venturi Tubes • 95% Particulate Removal • Removal of SO2 & HcL • Separation of Drain Water • < 1” WC Pressure Drop 1 MicroMistTMScrubber Elements

  8. Stage 2: Sub-Cooling Clean Gas Flue Gas • Conditioning • Agglomeration • Absorption of acid gasses • Removal of SO2 & HCL and PM > 1 micron 2 MicroMistTMScrubber Elements

  9. Clean Gas • Condensation and Agglomeration of H2SO4, Fumes and Sub-MicronParticulate • Internal Throat Atomizer ControlsDifferential Pressure With VaryingProcess Loads (Control to ~16” WC) • Correct Droplet Atomizationfor Maximum Collection Efficiency • Venturi Design Achieves Multi-Stage Liquid/Particle Differential Velocitiesfor Sub- Micron collection • Separate Drain for Maximum Liquor Management & PhControl Flue Gas Stage 3: PatentedTrue Venturi Stage 3 MicroMistTMScrubber Elements

  10. Venturi Tubes are “Ideal” Design Incorporating Maximum Particle/Droplet Collisions & Pressure Recovery

  11. PatentedMicroMistTMVenturi Stage Vertical Centrifugal Pumps Atomization Through HydroMistNozzles at the Inlet of Each Venturi Tube and Independent of Throat Velocity. Internal Throat Atomizer Modulates (Pump VFD) To Maintain Specified Pressure Drop Across This Stage

  12. Stage 4: Separation Clean Gas Flue Gas • High Efficiency Separator Stage Combination of Dual Orifice Contact (DOI) trays with Mist Eliminator • “Flushing” Removal of Dirty WaterDroplets With Irrigation And Backwash Spray Nozzles • Prevents Carry Over of Water into Scrubber Outlet 4 MicroMistTMScrubber Elements

  13. Additional Features • Maximize Re-use Water With Recirculation Tanks • Minimize Fresh Make-up Water • Experience with PH Control • Steady ∆P Across All Process Operating Conditions • No Hassle Maintenance • Proven Results With All Fuel Sources (Coal, Oil, NCG) • “One System” Air Pollution Control Option • UL Listed Control Enclosures With Fully Automated ControlCapabilities MicroMistTM Scrubber

  14. Emissions Control Technology Comparison

  15. Pilot testing emissions control applications is the most effective way to predict performance, operating conditions & chemical consumption. Pilot units must be accurately “scalable” to ensure correct and predictable results Pilot units must be modular to allow simple addition and subtraction of process stages Piloting the MicroMistTM Scrubber

  16. Test Capacity = 6,000 ACFM Production 8” Venturi Tube

  17. Incorporates Patented StarTM WESP Technology

  18. 2 SUB-COOL 3 1 QUENCH MicroMistTM VENTURI 4 SEPARATOR MicroMistTM Scrubber Field Testing Pilot Equipment EME ALL MOUNTED ON A FLAT-BED FOR CONVIENENCE

  19. Why try the MicroMistTMScrubber Pilot? • Cost Effective Test of System Efficiency • All Equipment Arrives on Site Together • Easy, Convenient, and Compact • Complete Engineering Assistance • Includes All Required Instrumentation • Includes Production 8” Venturi Tube in MMV Stage • Test Ports in Multiple Locations • On-site Field Service Technicians • “One System” Solution To Pollution Control

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