Environmental Retrofit - FGD Scrubber Installation

Conesville, Ohio

Client / Owner
American Electric Power
Architect / Engineer
Black & Veatch
Graycor Industrial

Project Scope

AEP's two-phased environmental retrofit project involved the Graycor Industrial team to install a flue gas desulfurization (FGD) scrubber system to reduce sulfur dioxide and nitrogen oxide emissions from the plant′s 780-megawatt Unit No. 4. Phase one of the project consisted of substructure work, including foundations, underground utilities, roadways, site grading and surfacing. Phase two involved all superstructures supporting the FGD and buildings.

The project scope included installation of the following components:

  • Major equipment and steel foundations
  • Stack foundation
  • Complete ductwork and support steel
  • Limestone silos and pipe racks / limestone unlading building
  • Electrical building / process buildings
  • Pre-engineered U2A and urea unloading building
  • Setting equipment in FGD building
  • HVAC