Biomass
boilers
For
warm water
- BIO
Automated, pellet, wood chips,
- Farmer
Automated, pellet,wood chips,
wood logs, multifuel
- Automat
Self-loading, automated, pellet,
wood chips, multifuel
Steam boilers
- Low pressure steam (0,5bar) automated boilers
for biomass, pellet, wood chips, multifuel
Coal
boilers
- Automated brown coal boilers
For warm water or low pressure steam
Fuel
feeder systems
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Fuel mixing |
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The fuel mixing is the most important
use direction of CARBOROBOT boilers. This special designed boilers
are able to burn mixes of different biomass and fossile fuels (
multi-fuel combustion).
The CARBOROBOT Classic
boilers can operate with coal+biomass mixes up to 10-30% biomass
added.
The CARBOROBOT BIO and BIO Farmer boilers can operate
with coal+biomass and biomass+biomass mixes up to 0-100%
There is two main mix cathegory
Coal+biomass (co-firing)
Biomass+biomass.
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Co-firing
technology |
Co-firing (Co-combustion) of the agriculture wastes, corn and
grains with coal.
Several benefits were detected favouring the extensive use of
biomass in energy production together with coal. Combustion of
high Si-content biomass residues alone produced Cl-containing
deposits, which tend to be corrosive. Sulphur and aluminium silicates,
present in coal, peat and lignite, inhibited Cl deposition. Even
small addition of coal to the feedstock hindered Cl deposition.
As a synergetic effect, wood derived biomass strengthened SO2
capture from the flue gases of coal combustion. In short, co-combustion
of biomass and fossil fuels has been argued for the following
reasons:
__ SO2 and NOx emissions reduced by use of
biomass fuels (in comparison with fossil fuels
alone). Co-combustion also reduces the net CO2 emissions
__ compensation of the seasonal fluctuations of the biomass availability
by the fuel mixture
__ eventual higher cost of biomass fuels compensated by fuel mixture.
Co-firing is also a technique that prevent bed agglomeration and
fouling in FBC units. Indeed, the risk of bed agglomeration, linked
to increased amounts of alkaline metals (Na, K) is strongly reduced
when peat is added.
http://www.et.byu.edu/~larryb/Cofire.htm
http://en.wikipedia.org/wiki/Cofiring
http://www.netbiocof.net/
http://www.biomassenergycentre.org.uk/portal/page?_pageid=75,41175&_dad=portal&_schema=PORTAL
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Coal+switchgrass pellet
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Coal+woodchipsk
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Coal+corn
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Coal+wheat
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Coal+waste
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Biomass fuel
mix |
The agriculture wastes, corn and grains can be mixed
to pellet or woodchips. The mixing can help to use the bad dusty
and wet materials as fuel and get energy. The good quality agripellet
or dry woodchips are carrier materials of this mixes. The mix
proportions need to determinate by the probes. The CARBOROBOT
BIO and Farmer types are prepared for the biomass
mixes.
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Woodchips+waste
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Woodchips+wheat
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Pellet+waste
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Woodchips+agripellet
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