Bed reaction tests with difficult fuels
(Run model development based on bed reactions and bed layer melting point measurements at different sodium, potassium and aluminium concentrations.)
We can perform bed reaction tests in our test environment using difficult fuels, burning the desired fuel in the fluidised bed boiler and adding fuel containing the problematic compounds while monitoring the melting of the bed and its ash. The purpose of the tests is to find a secondary fuel or sorbent to raise the bed's temperature limit.
The effects of contamination on running, ash behaviour and corrosion
For the test, a desired running behaviour model is defined in advance with the customer. The boiler is run for extended periods to achieve the desired contamination and layers on the heat delivery surfaces. This enables corrosion behaviour, ash fractionation and running method adjustment testing.
Properties of ash with different mixed fuels, elementary analysis (SEM) of ash
Our test arrangements allow the burning of both a primary and a secondary fuel in a fluidised bed boiler, as well as the feeding of catalysts and binders into the fuel and flue gas. Both fly ash and bottom ash can be collected from the fluidised bed boiler, the flues and purifying equipment, allowing the analysis of their elemental composition and solubility.