Pretreatment of non-wood lignocelluiosic material

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United States of America Patent

PATENT NO 8835156
APP PUB NO 20120156727A1
SERIAL NO

13381380

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Abstract

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The present disclosure provides a method for pre-treating non-wood lignocellulosic material containing less than 5 % (w/w) starch or sugar in a process for production of ethanol from lignocellulose, comprising the steps of: adding organic acid or organic acid-producing bacteria to the lignocellulosic material; storing the lignocellulosic material in the presence of the organic acid for a period of at least two weeks in an atmosphere of less than 5% oxygen to obtain organic acid-impregnated material; and heating the organic acid-impregnated material at a temperature of at least 160° C. to obtain pre-treated lignocellulosic material, wherein no, or substantially no, inorganic acid or base, including SO2, is added in the method.

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Patent Owner(s)

Patent OwnerAddress
SEKAB E-TECHNOLOGY AB891 26 ÖRNSKÖLDSVIK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bjornsson, Lovisa Lund, SE 1 6
Kreuger, Emma Lund, SE 1 6
Monavari, Sanam Lund, SE 1 6
Svensson, Sven-Erik Lund, SE 1 6
Zacchi, Guido Malmo, SE 2 18

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