JCI/USC Gasification System
Customer: Johnson Controls Inc. -
University of South Carolina
Location: Columbia, South Carolina
Facility Type: University
Application: Cogeneration plant to provide heat and power for university.
Nexterra Scope of Work: Supply only of gasification system

Highlights
Start-up: Q4 2007
Capacity: 60,000 lbs/hr of high pressure steam for district heating
Power: 1.38 MW of electricity power generation
Fuel: Wood residue (hog fuel)
Fuel moisture content: 25 - 55%

Benefits
Fuel Cost Savings: $4 per MMBtu net savings over natural gas previously used
Greenhouse Gas Reduction: 20,000 tonnes/yr (estimated)
Reduced reliance on fossil fuels Enable USC to shut down 2 of its 3 fossil fuel boilers

Process

• 3 gasifiers convert wood biomass to combustible syngas.
• Syngas is burned in the oxidizer.
• The hot flue gas is directed through heat recovery steam generator to produce steam.
• Steam sent to a back pressure turbine to produce electricity.
• Turbine exhaust steam is distributed to campus heating system.