TORREFACTION PROCESS
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United States of America Patent
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Issued Date -
May 2, 2013
app pub date -
Apr 28, 2011
filing date -
Apr 29, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a process for the torrefaction of a biomass feedstock for the production of a biofuel, the process comprising: (i) torrefaction of a biomass feedstock in a toroidal bed reactor, wherein the toroidal bed reactor comprises a reaction chamber with a substantially circumferentially directed flow of fluid generated therein to cause the biomass feedstock to circulate rapidly about an axis of the reaction chamber in a toroidal band, and to heat the biomass feedstock, wherein the fluid comprises gas or gases introduced into the reaction chamber and wherein the chamber is maintained under an oxygen-depleted atmosphere.
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