PROCESS FOR MANUFACTURING PELLETS AND PELLETS OBTAINED BY THE PROCESS
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United States of America Patent
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Issued Date -
Aug 15, 2013
app pub date -
Apr 22, 2011
filing date -
Apr 23, 2010
priority date (Note) -
Abandoned
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Abstract
The invention relates to a process for manufacturing pellets from wet biomass residues having a high water content of between 25% and 80% comprising the steps of a) charging the homogenate of wet biomass residues into a receptacle, b) drying the wet biomass residues in a dryer and c) converting the dry biomass residues in a pelleting press comprising a steel die pierced with holes and a steel rotor comprising notched wheels made of steel, in order to obtain the pellets, said process comprising/being characterized in that a step of drying the wet biomass residues is carried out at the same time as the pellet-conversion step at a temperature between 65° C. and 95° C. in a pelleting press coupled, in a closed circuit, to a dryer with air/air exchange comprising a pelleting press/dryer communication by-pass. The invention also relates to the pellets of plant or wood origin obtained by the process described and having a compaction of greater than 750 kg/m3.
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