Device and methods for discharging pretreated biomass from higher to lower pressure regions
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United States of America Patent
Stats
-
May 23, 2017
Grant Date -
Jun 23, 2011
app pub date -
Jun 4, 2009
filing date -
Jun 4, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided are devices and methods for discharging pretreated biomass from a pressurized reactor. Pretreated, hot biomass is added under high pressure at the top of a discharge vessel, which is partially filled with water or aqueous solution. The vessel comprises water jets situated on its sides through which water or aqueous solution is injected in order to establish a strong turbulence in the lower part of the vessel. This turbulence, preferably a vortex turbulence or “hydrocyclone,” blends biomass and water and disintegrates any clumped material prior to its ejection at high speed as a slurry through an orifice or valve at the bottom of the vessel. A stable temperature stratification is established within the discharge vessel, whereby hot water remains at the top of the vessel, reducing heat and steam loss from the pretreatment reactor.
First Claim
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International Classification(s)
- 2009 Application Filing Year
- C10L Class
- 285 Applications Filed
- 181 Patents Issued To-Date
- 63.51 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C10L Class
- 0 % this patent is cited more than
- 8 Age
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