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Biomass Services
The Hargreaves Group works with its' customers in the electricity supply sector to source, import, transport and handle a range of biomass products. Hargreaves has the resources to satisfy any part of the biomass supply chain and also has experience in the design/installation of bespoke storage and handling equipment.

About Biomass
There has been remarkably rapid progress over the past 5-10 years in the development of the co-utilisation of biomass materials in coal-fired power plants. The use of biomass in existing coal-fired power plants was among the first commercial options. The main reasons for this were the direct reduction of CO 2 emissions by replacing coal and also utilisation of the existing infrastructure for energy-efficient power supply - thereby minimizing investment costs.
A recent inventory of the application of co-firing worldwide has indicated that more than 150 coal-fired power plants have experience with co-firing biomass or waste, at least on a trial basis. The power plants involved are in the range 50-700 MW although a number of very small plants have also been involved. The co-firing activities have involved all of the commercially significant solid fossil fuels, including lignites, sub-bituminous coals, bituminous coals, anthracites, and petroleum coke. These fuels have been co-fired with a very wide range of biomass material, including herbaceous and woody materials, wet and dry agricultural residues and energy crops. This experience has shown how the technical risks associated with co-firing in different types of coal-fired power plants can be reduced to an acceptable level through proper selection of biomass type and co-firing technology.

 


Question: What about the Carbon dioxide realeased when burning Biomass products to create energy?
Answer: Unlike combustion of fossil fuels, which releases carbon dioxide captured by photosynthesis billions of years ago, carbon dioxide released by biomass is balanced by carbon dioxide captured in the recent growth of the biomass, so there is far less net impact on greenhouse gas levels.

Question: What are the best biomass fuels for power systems?
Answer: Right now, wood is most widely used form of biomass because wood-fired power systems have been in use for a long time and are well understood. In addition, there is an abundance of wood residue available for use in power systems from bioprocessing industries such as the wood products industry, other biomass fuels include olive nut carcases and palm kernels. Some food processing industries also produce biomass residues - rice husks, bagasse (sugar cane residue), orchard pits and prunings, etc. - that are used for power generation. The commercialization of gasifiers is making many other biomass fuels usable for producing electricity.
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