Basically there are two
torrefaction technology in use today, namely the direct heating and
indirect heating. Direct heating is
torrefaction technology with direct heating by
using the unit operation (process equipment),
among others, with non-oxygen gas loop with exchanger using a
moving bed, drum,
vibrating belt, multiple heart furnace or
using a low-oxygen
gas loop linked
to the burner using
a tunnel or
moving bed. While the indirect heating included
using advanced drying technology
and retort heating
as did JF BioCarbon. A number of technology providers are
competing to design an effective
and efficient process
so that meet benefit greatly. The use of indirect heating
such as JF BioCarbon
uses a vacuum
process and operating
conditions are easier to control.
Huge market
potential, because
the excellence of the biomass
torrefaction products (torrified wood pellet and
briquette), also made a number
of technology providers to increase their
production capacity. Currently the
average manufacturer produces
less than 5 tons /
hour torrefied wood
products. Production capacity to 5 tons /
hour is one of the parameters of success of this technology.
Torrefied wood products
is predicted to replace the wood pellets, because
of its superiority, among others,
as follows:
-Hydrophobic characteristically, good to be stored for a long time without experiencing degradation
of its physical properties
-Moisture content below 3%
-Easy to be crushed or pulverized to coal plant process
-The properties of torrified wood are very homogeneous
-Burned without causing smoke and smell because of all volatile material had been removed during manufacture.
-Ideal for gasification and Fisher-Tropsch process for conversion to chemicals.
-Moisture content below 3%
-Easy to be crushed or pulverized to coal plant process
-The properties of torrified wood are very homogeneous
-Burned without causing smoke and smell because of all volatile material had been removed during manufacture.
-Ideal for gasification and Fisher-Tropsch process for conversion to chemicals.
-Can be made from many biomass, while
wood pellet can
be made only from narrow feedstocks.
In addition to wood pellet
market is already
global oversupply, also encourages the use
of better fuel economy in both the torrefied
wood briquettes or
pellets.
Among a number of technology
providers, JF BioCarbon
using the process easier, simpler and
faster. If the average
of the production process torrefied pellets through
10 stages as follows:
a. Pre-Torrefaction
1.Prepare feedstock particle
size
2. Pre-dry feedstock
b. Torrefaction
3. Evaporate Residual Moisture
4. Heat Feedstock to 250-280 C
5. De-polimerize hemicellulose
c. Post-Torrefaction
6. Cool & re-polymerize product
7. Crush to Size
8. Condition
9. Densify (pelletizing)
10. Cool & Screen
(Adapted
from Wood Pellet Association of Canada)
So JF BioCarbon production process is
shorter, ie :
1-
Prepare feedstock size
2 &3 Pre-dry feedstock & evaporate
moisture.. This is all done in one process.
4 & 5- are one combined process
6-
Torrefied is cooled while being moved from reactor to char bin via a cold water
cooled jacketed auger system (40 ft. long)
7. Fine particles ready for
pelletizing if necessary.
8. Pelletizing
9. Cool and Screen
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