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SO3 Production in Boilers . All S converted into SO2 during combustionA part of SO2 is further oxidised into SO3 according to 3 mechanisms :Oxidation of SO2 by atomic O in the furnace Homogeneous oxidation of SO2 by molecular O2 Catalytic oxidation of SO2 by molecular O2 on ashes (400-700
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1. BULK CONVEYOR SPECIALIST, INC. SO2/SO3 MITIGATION SYSTEMS
2. SO3 Production in Boilers
All S converted into SO2 during combustion
A part of SO2 is further oxidised into SO3 according to 3 mechanisms :
Oxidation of SO2 by atomic O in the furnace
Homogeneous oxidation of SO2 by molecular O2
Catalytic oxidation of SO2 by molecular O2 on ashes (400-700°C)
3. SO3 Control/Removal
4. INJECTION LOCATIONS Economizer Outlet (~600 - 700F)
SO2 Trona
Air Heater Inlet (~600F)
SO2 Trona, SO3 Trona
Air Heater Outlet (~300F)
SO2 Trona & Hydrated Lime
SO3 Trona & Hydrated Lime
Economizer Inlet (~700 - 750F)
SO2 Trona
5. TRONA VS LIME
6. TESTING PERFORMED TVA WIDOWS CREEK-LIME SO3/OPACITY
TVA PARADISE LIME-TRONA S02/S03
TVA CUMBERLAND-LIME SO3
TVA BULL RUN- LIME SO3
RELIANT CHESWICK-LIME
SOUTHERN COMPANIES BOWEN LIME-TRONA SO2
SOUTHERN COMPANIES GASTON-TRONA SO2
MIRANT POTOMAC RIVER TRONA SO2
KENTUCKY UTILITIES GHENT LIME-TRONA SO3
LG&E TRIMBLE LIME-TRONA SO3
SEMINOLE ELEC-PALATKA- LIME SO3
PRIMARY ENERGY-TRONA SO2
7. BCSI TEST TRAILER SYSTEM TRAILER SYSTEM INSTALLED AND OPERATING
MINIMAL SPACE REQUIRED
CAPABLE OF CONTINUOUS OPERATION
NO PERMITTING REQUIRED
NO FOUNDATIONS REQUIRED
8. BLOWER TRAILER 3 BLOWER TRAINS
VARIABLE SPEED
MONITOR FLOW, TEMP AND PRESSURES
PLC CONTROLLED
9. BCSI PERMANENT SYSTEM COMPLETE SILO SYSTEM WITH ALL COMPONETS PRE INSTALLED AND PREWIRED FOR EASE OF INSTALLATION
MINIMAL SPACE REQUIREMENTS
PLC/ COMPUTER CONTROLLED
EASE OF OPERATION
MINIMAL MAINTENANCE
COMPLETE DATA STORAGE FOR LIME INJECTION CONTROL
10. BCSI EXPERIENCE PERMANENT SYSTEM IN OPERATIONFOR 3 YEARS, 24/7/365
OVER 30 TESTS FOR SO3 AND S02 MITIGATION USING VARIOUS SORBENTS
KNOWLEDGE OF INJECTION TECHNIQUES
DRY INJECTION NOZZLE DESIGN TO ENHANCE MATERIAL DISTRIBUTION
25 YEARS OF MATERIAL HANDLING EXPERIENCE WITH LIME AND SODIUM PRODUCTS.
OVER 150 LIME AND SODA ASH SYSTEMS OPERATING
KNOWLEDGE OF POWER PLANT OPERATION AND REQUIREMENTS FOR SO2 AND SO3 REMOVAL
KNOWLEDGE OF PLANT LAYOUTS AND REQUIREMENTS FOR INJECTION AND REMOVAL
11. WHAT DOES BCSI BRING TO THE TABLE EXPERIENCE
IN HOUSE DESIGN AND ENGINEERING
IN HOUSE FABRICATION
IN HOUSE ELECTRICAL DESIGN, PANEL BUILDING AND CONTROL PROGRAMMING
IN HOUSE EXPERIENCE ON SO3 MITIGATION
CAPABILITY TO DO TURNKEY PROJECT INCLUDING:
ACTUAL MATERIAL TESTING
MODELING
ENGINEERING
FABRICATION
GUARANTEES ON STOICH
DESIGN
INSTALLATION
STARTUP
12. CRITICAL SO3 CONTROL PARAMETERS DUCT AIR TEMPERATURE (290 TO 340 F)
DUCT VELOCITY (MINIMUM 2000 FPM)
MULTIPLE INJECTION LOCATIONS (BEFORE AND AFTER ESP)
MULTIPLE INJECTION LOCATIONS PER DUCT
VARIABILITY OF INSERTION LENGTH OF NOZZLES INTO DUCTS
MONITORING OF NOZZLES FOR PLUGGAGE
13. WEIGH HOPPERS FOR CONTROL OF FEED RATES
GUARANTEES FLOW DATA AND FLOW OF MATERIAL
18. TYPICAL NOZZLE DESIGN