Project Scope

Graycor served as construction contractor for Ameren’s new Selective Catalytic Reduction (SCR) installation. In addition to renovating and modifying the existing facility, the project required Graycor’s team to demolish the existing air heaters and ductwork. Work also involved an eight-week tie-in outage of ductwork and new operating systems, including the ammonia system.

The project scope included:

  • SCR foundations
  • Support structural steel
  • Howden air pre-heater
  • New SCR
  • Ductwork
  • Demolition of existing two air heaters and ductwork
  • Rerouting of fly-ash piping and modifying the existing pipe rack