BiGchar Continuous
Carbonisation Technology

BIG’s patented fast rotary
hearth technology was developed to satisfy a need for cost effective
conversion of waste biomass to charcoal and energy. The key features
of our technology are:
1. Low processing
costs
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Mobile or relocatable
pyrolysis units have been designed to cope with dispersed and
seasonal feedstocks. This can avoid the high cost of
transporting biomass to centralised facilities. The standard
mobile unit is the BiGchar 2200, designed for mobilization on a
2 tonne flat bed truck. The most nimble unit is the BiGchar
1000, designed for mobilization and use on a small trailer towed
by a one tonne utility vehicle, a car or even a donkey.
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Where suitable feedstock
is available at a fixed site then larger relocatable or
modular BiGchar unit of similar design can be employed – with
the added benefit of additional value from harnessing the major
energy released via their flue
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All units are designed for
simple continuous process and they can be fully automated for
standalone operation
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All units have a low power
requirement and they do not depend on gas or oil for startup and
operation
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Capital costs are kept low
by using simple design, smart technology and readily available
materials and components. We believe the BiGchar technology is
the lowest cost charcoal process available in Australia that
will produce at a commercially viable throughput while meeting
current environmental and industrial safety standards.
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The capital cost for
existing competing technologies start at more than $2M per tonne per hour of
biomass, but BiGchar systems start at $0.5M per tonne per hour
of biomass
2. Feedstock flexibility
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BiGchar technology accepts
a great variety of feedstocks, including algae, manures, paunch
waste, grass, cane trash, nut shells, sawdust, chipped or ground
wood and greenwaste, paper, cardboard and vegetable waste:
basically, if the feed can be ignited, then it can be BiGcharred.
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There is a minimal
requirement for pre-sizing of feed: material as fine as algal
powder or as coarse as woody shards 25 mm thick by 200 mm long
can be processed.
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The design of the BiGchar
units is quite tolerant of feed contaminated by soil, rocks,
wire, metal and rope: such contaminants wreak havoc on many
competing designs for continuous throughput.
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The process tolerates high
moisture in its feedstock (but functions more productively with
low moisture content). The preferred moisture content is less
than 35%, but the units can provide heat for an external dryer
with feed moisture as high as 60%
Click here to visit our photo gallery "From
biomass to BiGchar". |