White Paper Catalytic Bag Houses for Multi-pollutant Control

 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.

 

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