BIOMASS PELLETIZING PROCESS AND PELLETIZED PRODUCTS
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United States of America Patent
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Jan 15, 2015
app pub date -
Sep 29, 2014
filing date -
May 8, 2009
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Abstract
A pelletizing process and pelletized product is provided using non-food or limited-feed agricultural residue, such as corn stover and soybean stubble, and for various uses, including energy production, such as ethanol or electricity generation, fuel and feed. The agricultural plant material is harvested and baled. The bales are transported to the processing site for storage or immediate processing. The bale strings are first removed, and then the broken bales are shredded. The shredded plant material is then ground to a small size. The ground material is then pelletized without the use of binding additives, to produce densified pellets of the agricultural plant material. The pellets are cooled and then stored or transported to an end user. Chemical agents may be added to depolymerize lignin in the residue material. Nutritional supplements may be added to the material before pelletizing.
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