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US 2015/0238948 A1Published application
Polymeric and solid-supported catalysts, and methods of digesting lignin-containing materials using such catalysts
AssigneeMidori Renewables, Inc.
InventorJohn M. Geremia
Life of this patent
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Abstract
Provided herein are solid base catalysts useful in non-enzymatic break down of lignin in biomass. The solid base catalysts may be polymeric catalysts or solid-support base catalysts with ionic moieties. Provided are also methods for at least partially depolymerizing lignin materials into various lignin digestion products using the solid base catalysts described herein.
Claims19
A catalyst comprising basic monomers and ionic monomers connected to form a polymeric backbone,
- wherein each basic monomer independently comprises at least one Bronsted-Lowry base, wherein each Bronsted-Lowry base independently comprises at least one nitrogen-containing cationic group, at least one phosphorous-containing cationic group, at least one sulfur-containing cationic group, or any combinations thereof.
A catalyst comprising a solid support, basic moieties attached to the solid support, and ionic moieties attached to the solid support,
- wherein the solid support comprises a material, wherein the material is selected from the group consisting of carbon, silica, silica gel, alumina, magnesia, titania, zirconia, clays, magnesium silicate, silicon carbide, zeolites, ceramics, and any combinations thereof,
- wherein each basic moiety independently comprises at least one Bronsted-Lowry base, wherein each Bronsted-Lowry base independently comprises at least one nitrogen-containing cationic group, at least one phosphorous-containing cationic group, at least one sulfur-containing cationic group, or any combinations thereof
(canceled)
Dependencies are inferred from the claim text.