Lignocellulosic biomass hydrolysis without enzymes or acid catalysts

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United States of America Patent

PATENT NO 9809866
SERIAL NO

15032640

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This specification describes a process of producing a monomeric sugar stream ligno-cellulosic biomass without enzymes or acid catalysts. This is accomplished by removing the water soluble C5 sugars from the ligno-cellulosic biomass feedstream, lowering the pH of the C5 solution with little or no addition of an acid, thermally treating the remaining ligno-cellulosic biomass, combining the thermally treated ligno-cellulosic biomass with the low pH C5 solution and then exposing the mixture to an elevated temperature greater than 80° C. for a time sufficient to hydrolyze at least some of the components of the ligno-cellulosic biomass. Preferably, the thermally treated ligno-cellulosic biomass is subjected to a fiber shives reduction step to reduce the amount of long fiber shives.

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Patent Owner(s)

Patent OwnerAddress
VERSALIS S P APIAZZA BOLDRINI 1 20097 SAN DONATO MILANESE (MI) 20097

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ottonello, Piero Milan, IT 20 70
Paravisi, Stefano Tortona, IT 12 4
Pastorino, Pietro Campo Ligure, IT 6 4
Prefumo, Chiara Genoa, IT 8 4
Rivas, Torres Beatriz Arenzano, IT 7 11
Torre, Paolo Arenzano, IT 19 71

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