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New technique to convert biomass into crude
oil substitute
Friday February 08, 2013 03:13:19 PM,
IANS
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Copenhagen: A
revolutionary new technique converts all kinds of biomass into
high grade crude bio-oil, which can potentially replace fossil
fuel, by the virtue of being similar to natural crude.
Developed by two Danish researchers, hydrothermal liquefaction (HTL)
accepts sewage sludge, manure, wood, compost and plant material,
and wastes from household, meat factories and dairy production for
oil conversion.
It can help existing refinery technology, with a simple thermal
upgrade, to subsequently obtain all the liquid fuels we know
today, developed by the partnership of Aarhus and Aalborg
universities in Denmark.
Besides HTL consumes only 10-15 percent of the energy in the
feedstock biomass, yielding an energy efficiency of 85-90 percent.
It is by far the most feedstock flexible of any liquid fuel
producing process in existence, according to an Aarhus and Aalborg
statement.
The water emanating from the HTL process has low carbon contents
and can either be recycled into the process or ultimately be
purified to attain drinking water quality, which is the long-term
goal. As such, HTL replaces the burden of disposal with the
benefit of recycling.
The bio-oil from HTL can be used as-produced in heavy engines or
it can be hydrogenated or thermally upgraded to obtain diesel-,
gasoline- or jet-fuels by existing refinery technology.
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