METHOD AND SYSTEM FOR CONTINOUSLY TREATING BIOMASS MATERIAL
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United States of America Patent
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Issued Date -
Jul 11, 2024
app pub date -
May 3, 2022
filing date -
Jul 5, 2021
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Abstract
A method for continuously treating biomass material includes: feeding the biomass material into a substantially vertically arranged pressurized vessel; adding steam to said pressurized vessel for hydrothermal treatment of the biomass material, wherein said adding steam comprises adding steam at a lower portion of the pressurized vessel; discharging the biomass material from a bottom portion of the pressurized vessel using a discharge device; withdrawing vapor from a top portion of the pressurized vessel, and adding said vapor to the discharge device; controlling differential pressure between said top portion of the pressurized vessel and said discharge device by controlling a flow of said vapor; and determining a minimum flow of steam needed to heat the biomass material in the pressurized vessel to a predetermined temperature, wherein said adding steam comprises adding steam at a flow that is higher than said minimum flow.
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