Two-stage chemi-mechanical pretreatment for lignocellulosic biomass
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United States of America Patent
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Jul 19, 2016
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Jul 31, 2014
app pub date -
Jan 30, 2014
filing date -
Jan 30, 2013
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Abstract
A process for pretreating lignocellulosic biomass that increases monomeric sugar yields in subsequent enzymatic hydrolysis and reduces specific energy consumption during production of the hydrolysable material. The pretreatment includes a chemical treatment followed by a mechanical size reduction such as a disc refining step, and includes a second chemical treatment, harsher than the first, which may precede or follow the size reduction.
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