STM Environment
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This document provides information on STM's grinding, dosing, and injection technologies for gas cleaning applications. STM has decades of experience in developing and supplying grinding systems using sodium bicarbonate for applications like industrial waste incineration. Their product line includes hammermills, compact mills, and enclosed smart mills. The mills are available in various sizes with grinding capacities ranging from 5-4050 kg/hr depending on the model. STM's technologies can reduce emissions of pollutants like particulates, HCl, SOx, and heavy metals.
STM Environment
- 1. Advanced Gas Cooling, Dry Grinding, Feeding & Injection Technologies for the Environment 1 Experience is our Technology℠ Experience is our Technology℠
- 2. Co-Developer of Sodium Dry Injection Technology Market Leadership ‣ In the 90s, STM led the world in dry grinding for gas cleaning applications by co-developing a novel gas cleaning approach with a world-leading chemical supplier. ‣ The system uses ground Sodium Bicarbonate for cleaning hot exhausts. 2 STM Serial No. 1. Reggio Emilia, Italy
- 3. Continuing R&D Market Leadership ‣ There is no company with more mills installed on Sodium-based gas cleaning systems. ‣ Today’s STM is regarded as the premier supplier for grinding Sodium-based reagent with the most advanced milling know- how and the most accurate weigh-feeding systems. 3 STM Serial No. 207. The Latest Design
- 4. Injection Know-how Experience ‣ STM EcoSystems division may be small, but we boast personnel with over 100 years of combined experience in gas treatment systems. ‣ We utilize this experience and the latest computational models to correctly predict system performance. 4 CFD Examples of Reactor Designs 0.0 12.0 24.0 36.0 48.0 > 60.0 Total Velocity (ft/s) Airflow Scienc Corporation Design 3 Option 1 Model Results Total Velocity - Centerline Front Elevation Throat Zoom Bold Eco - Infratech Reactor Modeling Ju Figure4 L-14-BEX-03-1 0.0 15.0 30.0 45.0 6 Velocity Magnitude (ft/s) Velocity Magnitude - All P Side View - Model Doma BoldEco - Versa Maps Filter Modeling Figure3 L-13-BEH-02
- 5. Air Pollution Control OEMs and End Users Experience 5
- 6. Grinding, Dosing and Injection Product Range Gas Cleaning Equipment 6 Sorbent Reagent Systems BicarMill® Full-feature Grinding Mill, Including Optional Soundproof Enclosure JCF Grinding Mill for Retrofit Applications JCF-F Grinding Mill with Single Filtration, Single Machine, 5 Injection Lines Compact Compact Mill, Simple and Economical MF In-Line Crusher/Delumper Feeding & Injection Systems MDS-AC Micro-doser, Reagent Injection with Compressed Air MDS-P Doser, Reagent Injection with Blower MDS-VS Doser, Reagent Injection with Blower and Cross-flow Valve MDD Double Doser MDS-A Doser, Slurry Reagent Injection BD Distributor, Multi-outlet
- 7. STM Systems are Approved by Solvay Approvals 7 Summary: We note that 90% of SOLVAir® clients are actually satisfied with the use of machinery produced by the following companies: (In alphabetical Order): STM Every customer of grinding systems planning on using SOLVAir® Solutions in a plant must contact one of these suppliers. SOLVAY underlines that its objective is not to promote one supplier over another. The final choice should be carried out by choosing, in all cases, the offering that is best suited to the characteristics of the project and to the expectations of the main contractor. Date : 07/03/2013 Author : BDJ Reference document SOLVAir® DR 063 Controller : MTI, PGT Sodium Bicarbonate Grinding Systems Manufacturers Contact ListDiffusion : free The information contained in this document is given in good faith and by way of information at the time of publishing. SOLVAY does not engage its responsibility. The use of our products is for the treatment of flue gases, excluding all others uses and applications. The buyer is required to monitor and respect, in its sole liability, the conditions under which our products are stored and used in its territory, to provide all required information to the user, and to respect all existing patents and all regulations applicable to our products and to its activity. Sodium bicarbonate grinding Grinder manufacturers CONTACT LIST DR SOLVAir® 063 Revision : 4 Page 1/2 ©SOLVAY 2013 Note: Other suppliers recommended by SOLVAir® are NOT shown on this slide
- 8. Optimal System for Each Application Gas Cleaning Systems 8 Combustion Process System Type and Typical Reagent Grinding System Dosing and Injection System Technical Grade Sodium Bicarbonate Trona Activated Carbon Ready to Use (Lime, Limestone, etc.) Sodium Bicarbonate + Activated Carbon Industrial and Hazardous Waste Incineration • • • • Biomass • • • • Cement • • • Power • • • Water Treatment • • • Metals Recovery Furnace • • • • Cremation • • • • General Combustion: Heavy Fuel Oil and Natural Gas • • • Municipal and Hospital Waste Incineration • • • • Steel and Foundries • • • • Glass • • •
- 9. Typical Reductions Possible Using Dry Scrubbing Emissions Reductions 9 Capture Mechanism Pollutant (mg/Nm3) Emissions Fabric Filter Particulate (mg/Nm3) <1 Sodium Bicarbonate HCl (mg/Nm3) <5 SOx (mg/Nm3) <2 NOx (mg/Nm3) N/A HF (mg/Nm3) <4 Activated Carbon Heavy Metals (mg/Nm3) <0.05 Dioxins/Furans (ng/Nm3) <0.05 Cadmium (mg/Nm3) <0.001 Mercury (ng/Nm3) <0.001
- 10. Characteristics of Various Methods Gas Cleaning Comparison 10 Process Sodium Sorbent Carbon Calcium Sorbent Reagent Sodium Bicarbonate Trona Activated Carbon Low Temp Hydrated Lime High Temp Hydrated Lime Stoichiometric Ratio 1.2-1.4 1.8-2.5 Iodine Index 600-1050 mg/g 1.2-1.8 3.5-6.0 Gas Temperature 140-380 °C 140-380 °C 150-180 °C 80-120 °C 200-300 °C Reaction Time >2 Sec >4 Sec On Filter On Filter On Filter Weight After Reaction 30% HCl 16% SO2 30% HCl 16% SO2 - 50% HCl 83% SO2 50% HCl 83% SO2 HCl Efficiency >99% >95% - >95% 50-90% HF Efficiency <5mg/Nm3 <10mg/Nm3 - <10mg/Nm3 - SO2 Efficiency >98% >90% - >90% 80% Heavy Metals Efficiency - - Excellent - - Dioxin/Furan Efficiency - - Excellent - - Waste Recyclability Yes Yes Yes No No
- 11. Hammermills for Gas Cleaning Applications STM Milling Systems 11
- 12. The Basic JCF Design STM JCF Hammermill ‣ Full-feature classifying mill coupled to a transport air fan. ‣ Ideal for single-point gas cleaning plants and for retrofit applications. ‣ Operational advantages: ‣ Maximum energy efficiency ‣ Low noise emissions ‣ Minimal maintenance needs ‣ Compact, small space requirement ‣ High reliability and quality ‣ Ease of maintenance 12 Basic JCF Mill
- 13. Equipment Specifications and Capacity Technical Data JCF Mills 13 Model Installed Power Absorbed Power Capacity* Air Flow Pressure Noise Type/Size kW kW Range kg/h m3/h mm H2O dbA JCF 300 18.4 16.6 10-250 800 500 <75 JCF 400 29.2 26.3 40-450 1500 800 <75 JCF 630 64.2 57.8 100-1000 2700 800 <75 JCF 800 98.0 88.2 100-1400 4700 1000 <75 JCF 1000 129.0 116.1 100-1800 6000 1000 <75 JCF 1250 205.0 188.7 120-2925 9750 1000 <75 JCF 1500 284.0 261.2 150-4050 13500 1000 <75 *Capacities Stated for Sodium Bicarbonate
- 16. Mill with Pneumatic Cylinder Removal Assist JCF 300 Compact Mill 16
- 17. Mill with Pneumatic Cylinder Removal Assist JCF 400 Compact Mill 17
- 18. JCFF Series Mill for Indirect Dosing JCFF Indirect Injection Mill ‣ Full-feature classifying mill coupled to a transport air fan and a filter/ receiver. ‣ Ideal for complex gas cleaning plants with multiple injection points. ‣ Operational advantages: ‣ Modular and flexible arrangement ‣ Stockpile applications possible ‣ Ideal for multi-injection points ‣ Useable with multiple dosing systems ‣ Replaces multiple mills for cost savings 18 JCFF Mill A - Dosing System B - Mill C - Filter/Reciever D - Suction Fan
- 19. Equipment Specifications and Capacity Technical Data JCFF Mills 19 Model Installed Power Absorbed Power Capacity* Air Flow Pressure Filter Size Type/Size kW kW Range kg/h m3/h mm H2O m2 JCFF 300 18.4 16.6 10-250 800 500 12 JCFF 400 29.2 26.3 40-450 1500 800 24 JCFF 630 64.2 57.8 100-1000 2700 800 30 JCFF 800 98.0 88.2 100-1400 4700 1000 55 JCFF 1000 129.0 116.1 100-1800 6000 1000 91 JCFF 1250 205.0 188.7 120-2925 9750 1000 148 JCFF 1500 284.0 261.2 150-4050 13500 1000 205 *Capacities Stated for Sodium Bicarbonate
- 20. JCFF Series Mill with Multiple Dosing Units JCFF Indirect Injection 20 JCFF w/Multiple Dosers A - Dosing System B - Mill C - Filter/Reciever D - Suction Fan E - Rotary Valve F - Double Dosing System G - Eductor Venturi H - Regenerative Blower I - Mill to Filter Duct L - Filter to Fan Duct M - Air Recycle Loop N - Injection Point Piping
- 21. Mill with Pneumatic Cylinder Removal Assist Mill Closed JCF 630 Compact Mill 21
- 22. Mill with Pneumatic Cylinder Removal Assist Mill Open JCF 630 Compact Mill 22
- 23. Enclosed Smart Mill with 8400 Hour Online Guarantee STM BicarMill Technology ‣ Full-feature classifying mill coupled to a transport air fan, complete with custom enclosure and controller. ‣ Guaranteed online operation without stopping for a minimum of 8400 hours. ‣ Operational advantages: ‣ Packaged machine installation ‣ Lowest noise emissions ‣ Automatic operation ‣ Low maintenance - all external access ‣ High reliability and quality ‣ Optional remote alarming feature 23 BicarMill Smart Mill
- 24. Smart Bicarbonate Hammermill Features of BicarMill 24 Auto-greasing Operation Built-in Temperature SensorBuilt-in Vibration Sensor Built-in Airflow Sensor Automatic Build-up Control 8400 Hour NON-STOP GUARANTEE
- 25. Equipment Specifications and Capacity Technical Data Bicarmill 25 Model Installed Power Absorbed Power Capacity* Acid Gas Particle Size Air Flow Pressure Noise Type/Size kW kW Range kg/ h Type Range µm m3/h mm H2O dbA Bicarmill 300 18.4 16.6 10-250 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 800 500 <75 Bicarmill 400 29.2 26.3 40-450 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 1500 800 <75 Bicarmill 630 64.2 57.8 100-1000 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 2700 800 <75 Bicarmill 800 98.0 88.2 100-1400 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 4700 1000 <75 Bicarmill 1000 129.0 116.1 100-1800 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 6000 1000 <75 Bicarmill 1250 205.0 188.7 120-2925 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 9750 1000 <75 Bicarmill 1500 284.0 261.2 150-4050 HCl SO2 d90<30µm - d50<10µm d90<20µm - d50<5µm 13500 1000 <75 *Capacities Stated for Sodium Bicarbonate
- 26. Smart Mill with Automatic Control System BicarMill 630 26
- 27. Internal View of Doser and Mill with Pneumatic Open Assist BicarMill 630 27
- 28. Internal View of Doser and Mill with Hoist Assembly BicarMill 630 28
- 29. Rotor Disc Removal with Hoist Assembly BicarMill 630 29
- 30. Typical Installation on Dry Injection System BicarMill Installation 30
- 31. Dual System on Dry Injection System BicarMill Installation 31
- 32. Self-classifying, Compact Design STM Compact Mill ‣ Compact, self-classifying mill coupled to a transport air fan. The self-classifying design makes it a good choice for applications where particle size is not critical or where sorbent stoichiometry or acid gas efficiency requirements are low. ‣ Ideal for medium/small gas cleaning plants and for low-cost retrofit applications. ‣ Operational advantages: ‣ Low energy consumption ‣ Minimal maintenance needs ‣ Compact, small space requirement ‣ Ease of installation ‣ Automatic operation 32 Compact Mill
- 33. Equipment Specifications and Capacity Technical Data CompactMill 33 Model Installed Power Absorbed Power Capacity* Air Flow Pressure Energy Req. Noise Type/Size kW kW Range kg/h m3/h mm H2O kW/Ton dbA Compact 280 18.4 14.8 5-40 800 500 60-100 <75 Compact 400 29.2 23.5 10-120 1500 800 55-85 <75 Compact 600 64.2 51.5 20-450 2700 800 52-85 <75 *Capacities Stated for Sodium Bicarbonate
- 34. Self-classifying, Compact Design Compact Mill 34 Compact Mill 600
- 35. Enclosed Compact Mill with Doser Compact Mill - EasyBox 35 Compact 400 Easy Box Showing Dosing System
- 36. Enclosed Compact Mill with Doser Compact Mill - EasyBox 36 Compact 400 Easy Box Showing Internals
- 37. Enclosed Compact Mill with Doser Compact Mill - EasyBox 37 Compact 400 Easy Box Showing Internals
- 38. In-line Material Crusher with Online Maintenance MF Lump Breaker/Crusher ‣ Compact, in-line clinker crusher/ delumper with online maintenance capabilities. ‣ Capable of crushing a full-size clinkers down to 1” particles. ‣ Can be installed upstream of dust airlocks and conveying systems in boiler and just collector applications. ‣ Operational advantages: ‣ Low energy consumption ‣ Inline maintenance - no need for removal ‣ Compact, small space requirement ‣ Ease of installation ‣ Heavy-duty construction 38 MF Series Lump Breaker
- 39. In-line Material Crusher with Online Maintenance MF Lump Breaker/Crusher 39 Unit Deactivated for Maintenance Unit Online and Operational
- 40. Metering & Weigh Feeders for Gas Cleaning Applications STM Dosing Systems 40 MDS AC – 50
- 41. High-Accuracy Powder Metering Technology STM Weigh-Feeder Systems ‣ Solves the problem of accurately metering free- flowing powders by monitoring the flow of sorbents and activated carbon into the gas stream. ‣ Can be used for any application that uses powders, such as dry scrubbers and duct injection systems. ‣ Accuracy twice that of competitive commercial units. ‣ Operational advantages: ‣ Maximum energy efficiency ‣ High accuracy ‣ Minimal maintenance needs ‣ Compact, small space requirement ‣ High reliability and quality ‣ Ease of installation 41 Micro-Dosing Unit
- 42. Elements of Our Metering Systems Volumetric Components ‣ Modular dosing system elements allow the interchange of different elements to achieve different injection rates ‣ Variation of the dosing screw design based on the type of material being metered: ‣ Type A: Solid metering screw for non- compressible, high specific gravity material ‣ Type B: Open (spring) metering screw for compressible, low specific gravity material 42 Type B Spring ScrewType A Solid Screw Agitator Element
- 43. Elements of Our Metering Systems Control Components 43 Integral Air Preparation Unit Surge Hopper Level Sensor Transport Air Flow Meter and Pressure Transducer Weight Scale With Vibrator High-accuracy Gear Reducer 8400 Hour NON-STOP GUARANTEE
- 44. Simple Metering System MDS MicroDoser 44 Micro-Dosing Unit MDS Doser 1 - Dosing Housing 2 - Hopper 3 - Inlet Feed Port 4 - Metering Port Exhaust 5 - Metering Screw 6 - Level Sensor 7 - Doser Gear Reducer 8 - Agitator Gear Reducer 9 - Vibrator 10 - Agitator Element
- 45. Compressed Air Propelled Metering Systems MD-AC MicroDoser 45 Compressed Air Micro-Dosing Unit MD-AC Doser 1 - Dosing Housing 2 - Hopper 3 - Inlet Feed Port 4 - Metering Port Exhaust 5 - Metering Screw 6 - Level Sensor 7 - Doser Gear Reducer 8 - Agitator Gear Reducer 9 - Vibrator 10 - Agitator Element 11 - Vibrating Fork Level Sensor 12 - Surge Hopper 13 - Eductor Venturi 14 - Pressure Transmitter 15 - Weighing System 16 - Air Preparation Station 17 - System Platform
- 46. Compressed Air Propelled Metering System Material Flow MD-AC Doser Schematic 46 Weigh Scale Venturi Eductor Material Inlet Surge Hopper Transport Pipe
- 47. Elements of MD-AC Metering Systems Propulsion Components 47 Anti-plugging Pressure Sensor Compressed Air Level Sensor Venturi Eductor Surge Hopper Stainless Steel Transport Pipe and Anti-abrasion Tube
- 48. Blower Propelled Metering Systems MD-P MicroDoser 48 Blower Propelled Micro-Dosing Unit MD-P Doser 1 - Dosing Housing 2 - Hopper 3 - Inlet Feed Port 4 - Metering Port Exhaust 5 - Metering Screw 6 - Level Sensor 7 - Doser Gear Reducer 8 - Agitator Gear Reducer 9 - Vibrator 10 - Agitator Element 11 - Vibrating Fork Level Sensor 12 - Surge Hopper 13 - Eductor Venturi 14 - Pressure Transmitter 15 - Weighing System 16 - Air Preparation Station 17 - System Platform 18 - Blower
- 49. Blower Propelled Metering System Material Flow MD-P Doser Schematic 49 Weigh Scale Venturi Eductor Material Inlet Surge Hopper Transport Pipe
- 50. Elements of MD-P Metering Systems Propulsion Components 50 Anti-plugging Pressure Sensor Level Sensor Venturi Eductor Surge Hopper Stainless Steel Transport Pipe and Anti-abrasion Tube Venturi Eductor Surge Hopper Blower
- 51. Flow-through Valve Metering Systems MD-VS MicroDoser 51 Blower Propelled - Flow-through Valve - Micro-Dosing Unit MD-VS Doser 1 - Dosing Housing 2 - Hopper 3 - Inlet Feed Port 4 - Metering Port Exhaust 5 - Metering Screw 6 - Level Sensor 7 - Doser Gear Reducer 8 - Agitator Gear Reducer 9 - Vibrator 10 - Agitator Element 11 - Vibrating Fork Level Sensor 12 - Surge Hopper 13 - Eductor Venturi 14 - Pressure Transmitter 15 - Weighing System 16 - Air Preparation Station 17 - System Platform 18 - Cross-flow Metering Valve 19 - Blower
- 52. Flow-through Valve Metering System Material Flow MD-VS Doser Schematic 52 Weigh Scale Flow-through Valve Material Inlet Surge Hopper Transport Pipe
- 53. Elements of MD-VS Metering Systems Propulsion Components 53 Level Sensor Stainless Steel Transport Pipe and Anti-abrasion Tube Flow-through Rotary Valve Surge Hopper Blower Flow-through Rotary Valve
- 54. Double Metering Systems MD-D MicroDoser 54 Dual Micro-Dosing Unit MD-D Doser 1 - Dosing Housing 2 - Hopper 3 - Inlet Feed Port 4 - Metering Port Exhaust 5 - Metering Screw 6 - Level Sensor 7 - Doser Gear Reducer 8 - Agitator Gear Reducer 9 - Vibrator 10 - Agitator Element 11 - Vibrating Fork Level Sensor 12 - Surge Hopper 13 - Eductor Venturi 14 - Pressure Transmitter 15 - Weighing System 16 - Air Preparation Station 17 - System Platform
- 55. Double Metering System Material Flow MD-D Dual Doser Schematic 55 Weigh Scale Material Inlet System 2System 1
- 56. Water Propelled, Slurry Mixing Metering Systems MD-A MicroDoser 56 Water Propelled Micro-Dosing Unit High-pressure Pump Peristaltic Pump MicroDoser Venturi
- 57. Water Propelled, Slurry Mixing Metering Systems MD-A MicroDoser 57 Material Inlet High-pressure Pump MicroDoser Venturi Transport Pipe Flow Accelerator
- 58. Compressed Air Propelled Metering System MD-AC 50 Doser 58
- 59. Compressed Air Propelled Metering System Teflon Coated and ATEX Components MD-AC-TX-ATEX Doser 59
- 60. Big Bag Unloader and Metering System Teflon Coated and ATEX Components MDS-P + FIBC Unloader ATEX 60
- 61. Double Metering Systems MD-D MicroDoser 61 Dual Micro-Dosing Unit
- 62. Flow-through Valve Metering System MD-VS Doser 62
- 63. Compressed Air Metering System MDS-AC Doser 63
- 64. Compressed Air Metering System MDS-VS Doser 64
- 65. Multi-Outlet Material Distributors Material Distribution Systems 65
- 66. Multi-Outlet Material Distributors Material Distribution Systems 66 ‣ Solves the problem of discharging and distributing hard to flow material from a single silo to multiple points. ‣ Design is adaptable to the number and location of outlets, as well as the speed of the material extraction. ‣ Operational advantages: ‣ Modular design ‣ Optimal material distribution ‣ Multiple outlets with single silo ‣ Ideal for hard to handle powders ‣ Minimal maintenance needs ‣ Compact, small space requirement ‣ High reliability and quality ‣ Ease of installation
- 67. Multi-Outlet Material Distributors Material Distribution Systems 67 Material Outlet Material Inlet Cutaway View of a 4-Outlet Material Distributor
- 68. Multi-Outlet Material Distributors Material Distribution Systems 68 Example Application of a 2-Outlet Material Distributor
- 69. Multi-Fluid Nozzle Technology STM Atomizing Systems 69
- 70. What is Evaporative Gas Cooling? STM Atomizing Systems ‣ When a cold liquid is sprayed into a hot gas, the following phenomenon occurs: • The liquid droplets absorb heat from the hot gas, thus raising the temperature of the droplets • As the droplets are heated, they begin to vaporize, and decrease in diameter until they are totally vaporized • The evaporated liquid (steam) then continues to absorb heat from the gas until equilibrium is reached (gas and steam temperature is equal) ‣ This transformation of the cold liquid droplets into steam is accomplished by absorbing heat from the hot gas, thus reducing its temperature. ‣ Although a portion of the heat given up by the hot gas is used to heat the water droplets and the vaporized steam, the largest portion of the heat removed from the gas is utilized to provide the “latent heat of vaporization” required to vaporize (evaporate) the droplets. ‣ This phenomenon is generally known as Evaporative Gas Cooling 70
- 71. Evaporative Gas Cooling Processes STM Atomizing Systems ‣ Evaporative gas cooling, also known as EGC, is utilized to “condition” flue gas from a combustion process so that it is most effectively treated in downstream dust collection systems. ‣ Examples of process exhausts which require gas cooling include: • Dryers in chemical and pharmaceutical processes • Furnaces in steel and non-ferrous metals • Power generation for humidification of the gases upstream of an ESP • Power generation for optimization of a DSIACI system • Waste incinerators (Municipal and Hazardous) • Kilns in the cement and lime industry ‣ Gas conditioning is used when the gas needs to be cooled to a temperature/moisture condition that is safely above the dew- point of the gas, in order to avoid moisture condensation. 71
- 72. EGC Benefits Upstream an ESP STM Atomizing Systems ‣ Evaporative gas conditioning is used upstream of an Electrostatic precipitator to improve performance. ‣ EGC increases performance of an ESP: • Reduces particle resistivity - Increasing current density • Decreases gas viscosity - Increasing migration velocity • Increases dust cohesivity - Reducing rapping re-entrainment • Decreases gas volume - Increasing treatment time 72
- 73. EGC Benefits Upstream an ESP STM Atomizing Systems ‣ Evaporative gas conditioning is used upstream a fabric filter or baghouse. ‣ EGC increases performance of a fabric filter: • Reduces gas temperature - Avoiding damage to the bags - Permitting the use of a lower temperature rated bag • Increases dust cohesivity - Improves the filter cake properties - Reduces filter drag - Reduces filter penetration (bleed-through) • Decreases gas volume - Lowers the air-to-cloth ratio (filtration velocity) 73
- 74. EGC Benefits Upstream an ESP STM Atomizing Systems ‣ There are numerous applications where EGC can benefit a particular process other than just particulate collection. ‣ Processes that benefit from EGC: • Dioxin/Furan control - Rapidly quenching the gases prevents formation of dioxins and furans - Reduces the amount of or eliminates the need for activated carbon injection • Acid gas control - Approach to saturation increases the efficiency of calcium-based dry sorbent injection for SO2 and HCl - Reducing the temperature increases the efficiency of calcium-based dry sorbent injection for SO3 removal • Mercury and heavy metals - Reducing the temperature increases the efficiency of activated carbon ‣ Often a slurry system can be replaced by a dry sorbent injection system with EGC assist. 74
- 75. Droplet Size Analysis STM Atomizing Systems 75 Performance Comparison OptiVap vs. Nearest Competitor Percentofdropletsunevaporated 0 25 50 75 100 Meters the droplet has travelled 0 1 2 3 4 5 6 7 8 9 10 OptiVap Nozzle Competition
- 76. Droplet Size Analysis STM Atomizing Systems 76 Maximum Droplet Size for Different Outlet Temperatures DropletSize(µm) 0 45 90 135 180 Outlet Gas Temperature (Deg C) 250 200 150 100 75 Droplet Size (µm)
- 77. Advanced Dual-Fluid Atomizers STM Atomizing Systems 77 OPTIVAP NOZZLE DESIGN The OptiVap nozzle is a dual fluid atomizer that uses compressed air or nitrogen to atomize a liquid, typically water, to cool or to inject a chemical into hot gas stream. ‣ Fine, uniform droplets under all conditions, even when water pressure exceeds air pressure (cannot be overdriven) ‣ Lowest energy consumption of any nozzle on the market ‣ Used for high velocity gas streams with short residence time requirements ‣ Minimal maintenance needs, optimal for harsh duty environments
- 78. Dual Fluid Atomizers for Gas Cooling STM Atomizing Systems 78 Explosion Doors Nozzles after 6 months of operation showing no buildup and no wear Spray lances with heat shields and freeze protection High Temperature Upflow GCT for Steel EAF
- 79. Dual-Fluid Atomizers for Humidification & Chemical Injection STM Atomizing Systems 79 Chemical Injection /Humidification Spray Lances for Power Boiler Application Spray Lance Headers 3-Zone Humidification Control System
- 80. Gas Cooling, Milling & Dosing Technologies for the Environment STM EcoSystems 216 US Highway 206, Unit 21 Hillsborough, NJ 08844 Sales Contact: Joe Riley Tel. 609.273.3331 info@stmecosystems.com www.stmecosystems.com 80 Experience is our Technology℠ Experience is our Technology℠