ORNL Gasification System
Customer:
US Department of Energy and
Johnson Controls Inc. for
Oak Ridge National Laboratory
Location:
Oak Ridge, Tennessee
Facility Type:
DOE Energy Research Laboratory and
Bioenergy Science Centre
Application:
Biomass plant to provide heat for the ORNL campus
Scope of Work:
Nexterra will supply the complete gasification system.
Highlights
Capacity:
60,000 lbs/hr of low pressure steam for district heating
Fuel:
Locally sourced wood residue with 3+ day storage in dual-bin system
Fuel moisture content:
10 - 50%
Fuel source:
Local mills
Benefits
Fuel Cost Savings:
$5-7 million per year
Greenhouse Gas Reduction:
20,000 tons/yr (estimated)
Reduced Reliance on Fossil Fuels:
Enables ORNL to shut down four fossil fuel fired boilers
Local Economy:
Supports local business by using locally sourced wood waste
Process
- 3 gasifiers convert wood biomass to combustible syngas.
- Clean syngas is burned in the oxidizer.
- The hot flue gas is directed through a steam boiler.
- The steam is then distributed to all ORNL campus buildings.
- The ESP further cleans flue gas before releasing it out the stack.
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