PROCESS AND APPARATUS FOR REMOVING IMPURITIES FROM SOLID BIOMASS FEEDS
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United States of America Patent
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Issued Date -
Jul 1, 2021
app pub date -
Aug 13, 2020
filing date -
Dec 26, 2019
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Abstract
Processes and apparatus are described for removing impurities from solid biomass while preserving hydrogen and carbon content. Examples are provided of processes using acidified aqueous solutions in a countercurrent extraction process that includes the pneumatic transport of slurries between process units, or a mechanical dewatering step, or both, to produce a washed biomass suitable for various upgrading and conversion processes. Compositions related to the processes are also described.
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