|
FGD Systems are utilized by various industries, including coal burning utilities, to meet government mandated emission standards for SOx, Mercury and others.
To meet these levels a dry reactant, such as lime, calcium carbonate or calcium stearate, is injected into the ductwork which is carrying the SOx or Hg. The reactant then chemically bonds with the sulfur particulates and is caught on the filter bags of the dust collection/scrubbing system. The waste product is not necessarily waste as it is converted, chemically, through this reaction process to Synthetic Gypsum, Fly Ash as well as unused Reactant.
It is critical to properly split the conveying stream of reactant as it enters the large ductwork. This is the only method of contacting all particulates and ensure conversion. At the same time the system must work in unison within the customer’s existing air flow parameters to avoid many other issues.
With each FGD system special care in design is taken in the following areas:
- Monitoring and controlling the moisture content of certain reactants, such as hydrated lime, is crucial to the success of each system.
- Monitoring and ensuring the right amount of reactant is injected into the system. Loss-in-Weight systems are capable of accuracies to +0.25%.
- Specifying and utilizing the correct conveying line feeder, whether a rotary airlock, an eductor or other to ensure optimal up time.
- Monitoring the conveying lines to ensure all reactant is injected into the system. Special systems are provided to unplug a line, automatically, if a plug were to occur.
- Recent technology advancements have allowed us to dramatically reduce the amount of reactant used within these systems. Call us to begin saving money today!
Click on the link below to request more information.
|