Novacon Technology Presentation

Clean Coal Technology Ppt

For More Information Go To Novacon Energy Clean Coal Solutions Services

  • 1. Novacon Energy Systems, Inc. The TAMS Flue Gas Multi-Pollutant Control System For conventional utility boilers, TAMS holds the promise of extending the useful life of the plant while simultaneously reducing emissions and meeting higher future demand for electric power at competitive prices. For smaller utility boilers it would allows for substantial emissions Reductions without the high capital, labor, maintenance, and Operating costs associated with scrubbers. For Circulating Fluidized Bed combustors it would significantly reduce costs, increase efficiency, increase plant output, and provide for very high emissions reductions without additional capital investment. TAMS very low capital cost significantly reduces the financial risks of facilities planning and pollution control cost containment strategies. It may be used in any type of combustor and is applicable to Waste to Energy plants, Paper manufacturing, and many other industrial applications.
  • 2. THE NOVACON SORBENT INJECTION PROCESS Thermally Active Marble TAM (rt) WHAT IS IT ? A specially selected and prepared form of Calcium Carbonate exhibiting greatly increased performance as compared to conventional Limestone,Hydrated lime, Trona, Sodium Bicarbonate, and other sorbents.
  • 3. TAMs Dynamics: Why does it outperform other in-furnace or in-duct sorbents?
    • DECREPITATES CONTINUOUSLY AT A PREDICTABLE RATE, EXPOSING FRESH SURFACE AREA THAT INCREASES SULFUR CAPTURE (SURFACE AREA IS KEY TO CAPTURE EFFICIENCY AS THIS IS A SELF-EXTINGUISHING REACTION)
    • Reactions- SO2 + Ca CO3 = CaSO3 + CO2 [Small amount converted to CaSo4.2H2O+CO2 (Gypsum)]. All CaSO3 may be converted into Gypsum by forced oxidation.
    • CAUSES MICRO-TURBULENCE IN THE COMBUSTOR
    • INCREASES MIXING OF FUEL AND SORBENT INCREASING EFFICIENCY
    • INCREASES CARBON BURNOUT
    • SIMULTANEOUSLY REDUCES SO3 AND OXIDIZED MERCURY AS WELL AS SO2
  • 4. TAMs Injection into CFB or PCB TAMS can be used in multiple types of combustor through a simple system consisting of a silo, a metering valve, and pneumatic injectors. Drawing shows schematic for the majority of installed boiler types Works well in Stoker-Grate, Rotary Kiln and Mixed-with-Coal- Systems.
  • 5. The Novacon Process Schematic for C.F.B.s no equipment needed since they are already equipped for limestone injection Feed Stone Supply Grinding & Processing Equipment Grinding & Processing Equipment Two production lines for increased reliability TAMs Silo Variable speed Feeder Boiler Combustor Injectors * * Closed-Loop Control System Feed rates would be automatically controlled by CEMS stack sensor data vs. Emissions Set-Point.
  • 6. THE ADVANTAGES OF THE NOVACON TAMs FLUE GAS DESULFURIZATION SYSTEM FOR PULVERIZED COAL BOILERS (PCB)
    • Can reduce SO2 emissions by 73-78% @ a Ca/S ratio of 2 ( higher at increased feed rates)
    • It is extremely inexpensive to install. In a typical 500 megawatt PCB, the total capital cost (in U.S) would be 5 to 7 million dollars (much less for smaller plants)
    • Significant economies of scale in multi boiler facilities where material preparation equipment can be scaled to great economic advantage
    • Inexpensive to operate and maintain (minimal labor cost)
    • Material has proven to be substantially less fouling on boiler surfaces
    • The process can remove at least 75% of oxidized Hg emissions
    • Resultant ash streams have lower acidity (more environmentally friendly)
    • Reduces corrosion throughout the system and provides an ash that is more readily saleable
    • The process is compatible with all known NO2 and Carbon control systems
    • Equipment has very small real estate footprint
    • Process can be used with many fuels of varying sulfur content
    • Process can be successfully utilized in all combustor types
    • Older power plants can be operated economically while greatly reducing emissions, without having to install expensive scrubbers.
  • 7. Comparison of TAMs to Limestone in Pulverized Coal Boiler Demonstrations Firing 2.48% Sulfur Bituminous Coal % SO 2 Capture at Ca/S of 2 Test performed under the sponsorship of the U.S. Dept. of Energy and The Illinois Clean Coal Institute at EERC (General Electric). Over 500 limestones tested in this program. Showed 78% reductions @ 2 CA/S at Penn State firing same coal.
  • 8. THE ADVANTAGES OF TAMs IN CIRCULATING FLUIDIZED BED (CFB) COMBUSTORS IN PLACE OF LIMESTONE
    • No capital costs involved
    • When used in CFBs, sorbent use is reduced by 30 to 50% for equivalent reductions in SO2
    • Much coarser grind required – saving energy
    • Lowering of the Ca to S ratio allows the process to be effective where +95% removal rates are required
    • Carbon-in-ash streams are reduced by 30% or more
    • Fuel costs can be reduced by approximately 3%
    • Reduction in the throughput of inert materials reduces plant maintenance and labor
    • Will increase plant production capacity by reducing sorbent consumption- Less inert material, more fuel per hour
    • Due to the lower L.O.I.- the final ash streams are more saleable and easier to re-purpose or dispose of (also less toxic)
  • 9. CFB Pilot Scale Test Please note: SO2 reductions with TAMS higher by 1.8% Difference in feed rates would have been higher at same reduction rate Results of Demonstrations in CFB Power Plants Ca/S ratios required to meet SO2 reduction targets. Over 1 year in use at Foster Wheeler, AES, Tampella.
  • 10. Superior Performance allows the option of using less expensive higher-sulfur fuels in CFBs while still meeting very stringent emission standards
    • Sorbent consumption declines by up to 50% and the system can reduce SOx emissions by over 95% (this plant required only 90% reduction)
    • Unburned carbon-in-ash can be reduced by over 30% which will increase overall plant efficiency and reduce fuel costs by up to 3%
    • The emission of oxidized mercury will decrease by over 75%
    • TAMs will eliminate the production of Arsenic and SO 3 which fouls NOx control systems (SCR & NSCR catalysts)
  • 11. TAMs Compared to Other Sorbents: Higher temperature tolerance without sintering and flatter curve. This allows it to be injected closer to the flame which increases residence time and assures higher mixing efficiencies of SO2, coal, and sorbent Temperature conversion- 2200 F = 1204 C 2300 F = 1260 C 2400 F = 1316 C 2500 F = 1370 C
  • 12. Tests run at EERC:: Key Operating Results Firing 2.5% Sulfur Illinois Coal (EERC is a subsidiary of General Electric) 2450 F = 1343 C Flue gas V = 2.15 m/s
  • 13.  Novacon Energy Technology Cost/Benefit Issues and Implications
    • More than half of a power plant’s operating expenses are fuel costs
    • Fuel transportation cost can be as much as half of total cost
    • Local higher-sulfur coals can be used in place of low sulfur coals that may have to be shipped from thousands of miles away from the plant
    • Blending coals to achieve emissions standards is expensive, both from a capital equipment and labor viewpoint
    • Low sulfur fuel is available at higher cost, as compared to the TAMS process used with higher sulfur fuel
    • In many cases it would reduce the need for importing low sulfur coal or shipping fuel long distances, preserving coal mining jobs, while creating new ones in limestone mining, transportation and processing.
  • 14. TAMs (c) Can be used at Coal and Oil Burning Power Plants as the Transformation Technology to a Cleaner, Greener Environment.

    Added on 9/14/17

    White Paper Catalytic Bag Houses for Multi-pollutant Control

    The need for a Superior Sorbent

    The evolution of air pollution control technologies that combine catalytic filtration with dry sorbent injection (The Catalytic Bag House, or C.B.H.) promises to be the preferred method for dealing with acid gases such as SO2, NOX, and particulates. The technology is being applied to coal –fired power plants, waste-to-energy facilities, steel mills, and in many other industrial applications.

    The process has proven to be a better choice than wet or dry scrubbers, especially when used in older plants. Its primary advantages are a much lower capital cost, greater heat recovery benefits, and the potential for higher performance than scrubbers.

    U.S., energy policy is not yet well defined, However, new Power, Waste to Energy, and other industrial facilities take many years to plan, permit and build.  Cleaner fossil fuel power is an indispensible bridge towards the creation of a modern and more efficient energy system.

    Using the Paris Environmental Accord as a template, the rest of the world is moving forward rapidly. The main problem facilities are facing in complying with more stringent pollution control standards, are the costs involved in adopting new, cleaner technologies.

    The C.B.H. process, coupled with a far less costly sorbent, would be an excellent solution since it provides that rare combination of low capital and operating cost and high efficiency. This would allow coal-fired and Waste to Energy plants to substantially reduce pollutants at a fraction of the cost of a scrubber.

    For older plants and in emerging economies, where coal is, and will remain, the main source of energy for many years, the marketplace for an economically sound solution will undoubtedly expand dramatically.

    In a study released by The N.Y. Times in July 2017, 1600 new coal-fired plants will be built over the next decade throughout the world. Conservative estimates concluded that  coal powered energy will INCREASE by 43%

    The main impediment towards adopting Catalytic Bag House technology on a wider scale is the high cost of the special sorbents required! Both Hydrated Lime and micronized Trona cost between $140-160.00 per ton- F.O.B. mine or production facility.

    Shipping costs can be very high as well. For example, the largest Trona deposit is in Wyoming: Often Thousands of miles from an object plant

    We have developed a Calcium Carbonate based sorbent that is more efficient, has a much higher temperature tolerance, exhibits less fouling, and is:

    LESS THAN HALF THE COST OF HYDRATE OR TRONA

    The process is fully developed and has been run successfully for thousands of hours in power plants and Waste-to-energy facilities. The Pulverized Coal efficiency curves are shown below. Our sorbent is injected directly into the boiler, and is capable of operating at temperatures well in excess of 2,500f.

    TACC Sorbent

    As shown, TACC sorbent is 12.5 % more efficient than Hydrate in capturing SOX, as well as being able to operate efficiently within a wider range of operating temperatures. Partial loads have no effect upon the process due to the flat curve surrounding its ideal injection temperature of 2,450f.

    If you are interested in the potentials our material offers, you can contact Novacon here or just email us at TAACSORB@optonline.net , to arrange a discussion.

Novacon Energy Clean Coal Solutions Services

 

 

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