Temperature-controlled delignification of biomass

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United States of America Patent

PATENT NO 11982051
APP PUB NO 20220412001A1
SERIAL NO

17807179

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A process to delignify biomass, said process comprising the steps of:

    providing a vessel;providing biomass comprising lignin, hemicellulose and cellulose fibers into said vessel;providing a aqueous acidic composition comprising a sulfuric acid component;providing a peroxide component;exposing said biomass to said sulfuric acid component and peroxide component, creating a reaction mass;allowing said sulfuric acid component and peroxide component to come into contact with said biomass for a period of time sufficient to a delignification reaction to occur and remove over 90 wt % of said lignin and hemicellulose from said biomass; andcontrolling the temperature of the delignification reaction to maintain it below 55° C.

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Patent Owner(s)

  • SIXRING INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pagels, Markus Calgary, CA 34 128
Weissenberger, Markus Calgary, CA 113 81
Youssef, Emhemmed Calgary, CA 3 3

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