Biomass Processing
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United States of America Patent
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app pub date -
Oct 9, 2014
filing date -
Dec 26, 2013
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Abandoned
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Abstract
A biomass processing system produces a refined bio oil. The system includes a first auger carrying the biomass through a torrefaction/drying chamber to dry the biomass and a second auger carries biomass feed material though the torrefaction/drying chamber to produce vapor phase bio oil. The vapor phase bio oil is collected carried from the torrefaction/drying chamber to condensers and quenched by a water spray before release into the condensers. The water spray also serving as a solvent to reduce pH in the liquid phase raw bio oil. The raw bio oil is carried to a conditioning system where the raw bio oil resides in a separation tank where the water separates and is removed producing refined bio oil. Ethanol may be mixed with the refined bio oil to produce fuel oil or petroleum asphalt may be mixed with the refined bio to obtain a substitute for road asphalt.
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