1. MicroMistTM Wet Scrubber Advanced Scrubbing Technology
Ultra-High Efficiency
Fossil Fuel Pollutant Capture

2. The
MicroMist™
Scrubber

3. Benefits of MicroMistTM Scrubbing Technology
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!

4. What’s Different? 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

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. MicroMistTM Scrubber Clean Flue Gas Gas
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 Flue Gas Gas 1 MicroMistTM Scrubber Elements
Quenching Upstream of True Venturi Tubes
95% Particulate Removal
Removal of SO2 & HcL
Separation of Drain Water
< 1” WC Pressure Drop 1
MicroMistTM Scrubber Elements

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

9. Stage 3: Patented True Venturi Stage
Flue Gas
Clean
Gas
Stage 3: Patented True Venturi Stage
Condensation and Agglomeration of H2SO4, Fumes and Sub-Micron Particulate
Internal Throat Atomizer Controls Differential Pressure With Varying Process Loads (Control to ~16” WC)
Correct Droplet Atomization for Maximum Collection Efficiency
Venturi Design Achieves Multi-Stage Liquid/Particle Differential Velocities for Sub- Micron collection
Separate Drain for Maximum Liquor Management & Ph Control 3
MicroMistTM Scrubber Elements

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

11. Vertical Centrifugal Pumps
Patented MicroMistTM Venturi Stage
Vertical Centrifugal Pumps
Atomization Through HydroMist Nozzles 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 Flue Gas Gas 4 MicroMistTM Scrubber Elements
High Efficiency Separator Stage Combination of Dual Orifice Contact (DOI) trays with Mist Eliminator
“Flushing” Removal of Dirty Water Droplets With Irrigation And Backwash Spray Nozzles
Prevents Carry Over of Water into Scrubber Outlet 4
MicroMistTM Scrubber Elements

13. Additional Features MicroMistTM Scrubber
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 Control Capabilities
MicroMistTM Scrubber

14. Emissions Control Technology ComparisonPM
(front)
(back)
SO2
H2SO4
MicroMistTM Scrubber x
ESP -
ESP & SO2 Scrubber
some
ESP, SO2 Scrubber & WESP
Baghouse
Baghouse, dry lime injection

15. Piloting the MicroMistTM Scrubber
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

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

17. Incorporates Patented StarTM WESP Technology

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

19. MicroMistTM Scrubber Pilot?
Why try the
MicroMistTM Scrubber 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