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A non-woody biomass is delignified through extrusion technology, utilizing hydrogen peroxide and an alkali agent, to break down complex biomass materials. The process is useful in forming a highly absorbent fiber material for use as a dietary fiber or an absorbent fiber. Alternatively, the process i

A non-woody biomass is delignified through extrusion technology, utilizing hydrogen peroxide and an alkali agent, to break down complex biomass materials. The process is useful in forming a highly absorbent fiber material for use as a dietary fiber or an absorbent fiber. Alternatively, the process is useful for preparing dietary feeds for ruminant animals, as well as produce a broad range of alcohols or polymers from the non-woody lignocellulosic substrate.

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A process for continuously treating a non-woody lignocellulosic substrate consisting of organic plant material having no more than about 20% lignin content, the process consisting essentially of: (a) reacting the substrate in a reaction medium including an aqueous solution of a strong alkali at a pH

A process for continuously treating a non-woody lignocellulosic substrate consisting of organic plant material having no more than about 20% lignin content, the process consisting essentially of: (a) reacting the substrate in a reaction medium including an aqueous solution of a strong alkali at a pH in the range of about 10.5 and 12.5; (b) reacting a chelating agent with the substrate the chelating agent being in an amount and for a time effective to chelate any metal ions in the solution; (c) continuously feeding the product of step b) to an aqueous solution in a pressurized extruder reactor and reacting the substrate in an oxygen atmosphere at a temperature between about 150°and 315°F. and at a pressure between about 250 and 450 psi, and in the presence of hydrogen peroxide for a period of time effective to delignify the substrate wherein the hydrogen peroxide is added to the extruder at a rate of between about 20 and 40 pounds of hydrogen peroxide per ton of substrate.