The Battelle Memorial Institute originally developed the “Low
Gas Inlet Velocity High Throughput Gasification Process” in the
1980s. This process is now known as the SilvaGas® process.
The SilvaGas process converts biomass into a clean, medium-Btu
gas that is directly substitutable for natural gas. The process
has a wide variety of applications including high efficiency
power production, waste disposal and chemical synthesis.
The SilvaGas process can be scaled into single unit plants
ranging in capacity from 100 tons per day to more than 1,000
tons per day. Due to its compact and flexible design, the process
can either be integrated into existing facilities or constructed
as a stand-alone greenfield facility.
In a gas turbine combined cycle, a 300 ton per day plant would
produce enough product gas to generate 23 MW of electricity.
This is an increase in power output of up to 50% from the same
fuel input, when compared to existing biomass fired boiler systems.
The strength of the SilvaGas process resides in its simplicity
- the biomass is rapidly heated with hot sand. The hot sand
converts the feedstock into a clean burning medium-Btu gas (450
- 500 Btu/scf). It is important to note that the process operates
at near atmospheric pressure and requires no unique equipment
or an oxygen plant. In addition, it uses conventional equipment
and control technology.
The SilvaGas process accepts a wide variety of biomass feedstocks
including prepared municipal and agricultural wastes. The product
gass is suitable for chemical synthesis, direct combustion or
high efficiency power cycles such as gas turbines or fuel cells.
Due to its vast potential, the award winning SilvaGas process
continues to receive support from the U.S. Department of Energy.