Other “Plant Opportunity” Fuels

Chesapeake CBO Facility

Fly Ash Carbon Burn-Out Facility

Owner: Progress Ash Technologies, Inc.

Project Location: Chesapeake, Virginia

Project Completion: November 2006

Project Description:

ESI was the EPC Contractor for this carbon burn-out facility. This facility utilizes patented fluid bed technology designed by ESI and developed by Progress Materials to reduce the high carbon content of fly ash resulting from low NOx burner conversion of pulverized coal-fired utility boilers. The heat recovered from this process results is captured in the utility heater cycle which in an improvement to the utility boiler heat rate. The carbon burn-out plant processes the fly ash in an efficient manner to reduce the carbon content and provide a superior additive product for concrete. This facility was constructed at the Dominion-owned Chesapeake Electric Generating Station and was designed to process 200,000 tons per year of high LOI flyash and reduce it to 2% LOI. The marketable ash is pneumatically conveyed to a 40,000-ton loadout silo for storage and later reclaim to the loadout silo.