ROTARY KILN
The rotary kiln is an indirectly heated batch system comprising a 14-inch stainless steel pipe with a variable-speed drive to control the rotation speed. Adjustable natural gas burners located below the provide heat to the contents inside the kiln. A gas flow system allows air or nitrogen to be fed through the kiln, allowing for heating in an oxidizing or inert environment. Gases exit the kiln and can be routed through a scrubber to remove acid gases.
Specifications
- Material types: biomass, waste, mineral ore, catalyst support
- Mass loading per batch: up to 150 lb (70 kg) per batch, depending on density
- Max. heat input: 300,000 Btu/hr (90 kW)
- Max. temperature: 1300°F (700°C)
- Overall reactor dimensions: Ø 16 in (0.40 m) x 6.5 ft (2.0 m)
- Heated length: Ø 16 in (0.40 m) x 4.0 ft (1.2 m)
Capabilities
- Torrefaction of biomass/waste
- Pyrolysis of biomass/waste
- Thermal treatment of mineral ore for e.g. removal of organic impurities
- Production of catalyst or oxygen carriers by incipient wetness and calcination
Research
- Torrefaction of materials with study of time-temperature history influence on materials properties
- Prolysis of materials for study of char properties and measurement of gas composition
- Production of copper-based oxygen materials by incipient wetness using Cu(NO3)2 with subsequent calcining to CuO