Bio-energy activities brochure
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Bioenergy: turnkey plant solutions
AREVA has developed turnkey bioenergy solutions using 2 principal bioenergy technologies: combustion and anaerobic digestion. Both technologies can exclusively produce electricity, or generate a combination of electricity and steam in cogeneration plants. In addition to bioenergy solutions, AREVA provides heat recovery and small hydroelectricity solutions.
Projects can vary according to fuel supply, constraints and envisioned profitability, and local needs in terms of electricity or heat. These elements help determine which solutions may be most suitable to a project.
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Types of plants
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Combustion
Combustion biomass power plant
The voluminous waste matter from the food, agricultural and forestry sectors was traditionally disposed of in harmful waste streams or burnt in boilers with low efficiency. These now provide essential resources for AREVA biomass power plants.
Description- Biomass fuels: wood chips/bark, sawmill residue, bagasse (residue from sugar cane), rice and cotton husks, EFB (residue from Oil Palm industry), chilly stalks, sunflower oil cake, soybean oil cake, coconut husks, olive pits, etc.
- Technology: combustion of biomass in a high-pressure boiler, steam expansion in a power generator turbine
- Output: 5-50 MWe
Cogeneration plant
The simultaneous production of electricity and heat using a single fuel–such as biomass–is referred to as cogeneration. In its cogeneration plants, AREVA is able to harness the heat released during power generation in the form of steam. This heat can be used by nearby industries and the electricity used by them or sold on the grid.
This technology is a variant applicable to all bioenergy technologies, e.g., biomass combustion and biogas.Description- Applications: distilleries, cement works, glassworks, furniture manufacturers, sugar mills and the paper, pharmaceutical, forestry, agriculture and textile industries, etc.
- Output: 5-200 MWth
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Anaerobic digestion
Biogas power plant
Anaerobic digestion is an entirely organic process that ensures the highest yield when converting wet organic matter such as pig manure or wastewater into energy.
Anaerobic digestion produces biogas, which can be burned like natural gas.Description- Substrates: wastewater, industrial and agricultural waste
- Required volume: 20 – 30,000 metric tons of biomass per year (industrial or agricultural waste) or 2,000 – 5,000 m3 per day of waste water
- Technology:
- concentration of biomass for liquid effluents
- wet or dry anaerobic digestion for solid residues - Output: 500 KWe – 10 MWe
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Heat recovery
Heat recovery plant
Heat recovery plants help reduce the energy demand of industrial facilities by using the waste heat released by these facilities, with little or no extra impact on the environment.
Description- Energy source: heat
- Technology: residual heat from industrial processes used to generate electricity
- Output: 5-50 MWe
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Hydroelectric power
Small hydroelectric power plants
In remote locations with access to flowing water, small hydroelectric power plants (SHPP) can be installed to provide a continuous energy source.
AREVA KOBLITZ has experience in setting up low-cost SHPPs that generate a maximum output of energy with only minimal environmental impact.
The process involves a study of the river inventory, the basic project, and the construction work.
