Process |
Reactant |
In flue gas |
Fly ash and deposits |
Benefit O&M |
Normal WTE |
Sulfur in waste |
SO2 |
slow sulfatation |
little effect on fouling and corrosion |
Sulfatation Generator |
SulfGen reactant through generator at secondary air |
SO3 |
fast sulfatation Chlorides --> Sulfates + HCl |
Stickiness of fly ash and hardness of deposits drastically reduced. |
SulfGen™ - Prevention of fouling and corrosion with a sulfation generator
The sulfation generator is a new technology, which consist of the injection a sulfur based reactant through the secondary air. This is done in a way, that chlorides on fly ash and deposits are efficiently transformed to sulphates. Stickiness of fly ash and hardness of deposits are drastically reduced. Customers say: Deposits are now “Removable with a brush” at outages. This effect is due to the increased melting point when alkali chlorides are transformed to sulphates. Particularly relevant for reduced corrosion are the sulfation of heavy metal chlorides with increased melting temperatures. The Technology was developed by Joerg Krueger at the Klingele plant in Weener and is successfully operated there for over 5 years with Secondary Recovered Fuel (SRF).