The refinement of biomass for use as raw material in manufacturing can be made fully sustainable through the use of
biofuels like ethanol, one researcher suggests.
Maria Gonzalez Alriols, an
engineer at the University of the Basque Country, explains the benefits of using
biofuels derived from the same biomass that is being refined.
An alternative is to use caustic soda in the refinement process; this relies on some of the energy contained in the sub-products of the biomass being released as part of the procedure, she says.
Because this energy value must be consumed as part of the refinement process, the procedure is neither clean nor fully efficient.
Ms Gonzalez Alriols argues that ethanol can be a useful solvent in improving the refinement of biomass using organosolv treatments.
Ethanol can be derived from the biomass itself, making the process cleaner, she adds.
Ms Gonzalez Alriols works in the chemical engineering and environmental department of the university's Polytechnic School.
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