Technology Makes it Possible
Iogen technology makes it economically feasible to
convert biomass into cellulose ethanol using a combination
of thermal, chemical and biochemical techniques. The
yield of cellulose ethanol is more than 300 litres per
tonne of fibre. The lignin in the plant fibre can be used to drive the process by generating electricity, recycling emissions and reducing fossil fuel usage.
Iogen developed efficient pretreatment methods to increase
the surface area and "accessibility" of the
plant fibre to enzymes, reducing overall conversions
costs. We achieve this through our modified steam explosion
process. This improves ethanol yields and increases
Iogen has new, highly potent and efficient cellulose
enzyme systems tailored to the specific pretreated feedstock.
Iogen already has a worldwide business making enzymes
for fibre processing industries including pulp and paper
Iogen developed reactor systems that feature high productivity
and conversion of cellulose to glucose. This is accomplished
through separate hydrolysis and fermentation using a
multi-stage hydrolysis process.
Iogen uses advanced microorganisms and fermentation
systems that convert both C6 and C5 sugars into ethanol.
The "beer" produced by fermentation is then
distilled using conventional technology to produce cellulose
ethanol for fuel grade applications.
Iogen has successfully integrated all the processes
within its demonstration scale cellulose ethanol facility.
Large-scale process designs include energy efficient
heat integration, water recycling and co-product production
that make the overall process efficient and economical.