Banham Power

Stage 1 – Intake
Chicken by-products (eg feathers, head, viscera) enter the plant at a rate of 8 tonnes/hour to be shredded into 6mm particles in a macerator. At this stage, the material has a moisture content of 60% and a Calorific Value (CV) of around 24 MJ/kg.

Stage 2 – Drier
The shredded material is dried at temperatures of up to 500oC until moisture content has been reduced to below 8%. After drying, the material resembles rockwool fibres.

Stage 3 – Gas Converter
Thermal treatment takes place under contained, oxygen-free conditions in a double-walled converter whose outer wall is heated to temperatures in excess of 800oC. This results in the production of a fuel-gas, known as syngas, and ash for re-use or disposal. At this stage, the ash represents just 7% of the original volume of material processed.

Stage 4 – Cooler
The gas is water-cooled and scrubbed to remove impurities. 12% of the gas produced is recycled to fuel the gas conversion process, a further 6% is used to run a thermal oxidising unit which de-odorises emissions to air. The remainder is used to generate renewable electricity.

Stage 5 – Engine
The gas produced powers three 20 cylinder engines, each capable of generating in excess of 1.8 megawatts of electricity ready to be supplied to the National Grid. Heat from the engine exhausts is recycled to power the drier.

	Back to top
Previous Page		Next page
	Contact Us

Move your cursor over the flow diagram for further details