It is expensive to store noxious fly ash waste produced from semi-dry desulphurization of flue gases. However, these wastes can be used as a valuable semi-finished product for desulphurization of fluidized bed boilers.

Post-reactive fly ash waste from desulphurization of flue gases by means of the semi-dry method, due to its composition, results in a chemically active substance that cannot easily be commercialized. The post-reactive waste can be made useful, but the traditional conversion process is expensive and time consuming.

Our technology turns post-reactive fly ash waste from desulphurization of flue gases into a valuable semi-finished product. After being mixed in proper proportion with limestone powder and subjected to our mechanical activation process, the post reactive fly ash waste becomes an excellent sorbent which can then be used for desulphurization in fluidized bed combustion power boilers. Chemical reactions taking place during the activation process change the chemical composition of the fly ash waste, thereby converting the waste into a commercially useful product.

In summary, we use typical fly ash from fluidized boilers, which, after mechanical activation, is used for production of our patented construction material called Flubet®.

Production tests by Energomar-Nord in the Thermal Power Station "Żerań" on the fluidized boiler Ofz430A validated our earlier assumptions. An additional benefit of the mechanical activation is the significant decrease in the amount of sorbent used in the Power Station partly replaced by the utilization of calcium compounds contained in the fly ash waste product.

- elimination of costs connected with storage of fly
ash waste products from the semi-dry desulphurization
of flue gases
- capital savings resulting from reducing the amount of
limestone powder used in the desulphurization process