METHOD OF ASH REMOVAL FROM A BIOMASS
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United States of America Patent
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Issued Date -
Jan 12, 2012
app pub date -
Jun 9, 2011
filing date -
Jun 9, 2010
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Disclosed herein is a process of reducing the ash content of a biomass feedstock or a biomass fraction. Embodiments include a process of reducing the ash content of a biomass feedstock or of a biomass fraction comprising: providing a biomass or biomass fraction; adding alcohol and acid to the biomass to yield a reaction mixture; separating the reaction mixture into a solid fraction and a liquid fraction by centrifugation; and distillating the liquid and collecting the solid to recover reaction reagents. The biomass can comprise aquatic species such as lemna.
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