In apower generation system with coal fired equipment CO2 emissions can be reduced to some extent however system efficiency can be reduced when fuel is co-fired
with the coal.
Allete generates electricity from coal-fired, solar, hydro, wind, natural gas-fired, biomass co-fired
, and other sources, as well as shale resources.
acceptable solutions may include installation of efficient stand-alone biomass boiler(s), modification of existing boiler(s) to efficiently fire biomass, installation of a biomass gasification system which can be used to fire or co-fire new or existing boiler(s), installation of biomass-fired hot gas generator(s) to be used as the heat source in existing boiler(s) to efficiently generate steam, identification of an affordable source of a biomass-based fuel with coal-like properties which could be fired or co-fired
in existing boilers with minor modifications to the solid fuel handling systems.
and dual-switching units that were configured to burn gas were able to take advantage of this windfall.
There are over 150 installations worldwide in which are co-fired
different types of fuel (Al-Mansour, Zuwala 2010).
Most commonly wood is co-fired
with coal, a good example being Drax power station where a carbon dioxide mitigation of 9% is being realised by this means.
Among the topics are materials science concepts for printed films, multilayer low-temperature co-fired
ceramic systems incorporating a thick-film printing process, printed thick-film mechanical microsystems, printed heater elements, and printed polymer solar cells.
Some authors report that any quantity of co-fired
biomass improves the ignition stage, while others report opposite results.
So biomass is becoming a popular option because it is relatively clean burning and can be co-fired
in small quantities in existing fossil-fuel plants with little modification.
The EOMIN manufacturing technology results in a shock resistant reliable module with lower thermal resistance than competing Low Temperature Co-fired
Several different types of biomass can be co-fired
with coal, including wood, residues from forestry and related industries, agricultural residues, and biomass in refined form, such as pellets.
Prior to Notice 2006-88, it was unclear whether a facility that co-fired
other material would still qualify for the credit.