Selective liquefaction of lignin and biomass in a mixture of sub- and supercritical fluids in absence or presence of heterogeneous catalysts
AssigneeSouth Dakota Board of Regents
InventorsAlevtina Smirnova, Chris Lynde, Abu Md Numan-Al-Mobin, Rudresh Bommadihalli Rajappagowda
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Abstract
Disclosed herein are methods for selective synthesis of specific phenolic products by means biomass or biomass products liquefaction, manipulation of the said selectivity in favor of one specific phenolic compound or a mixture of specific phenolic compounds, and the synthesis of the phenolic compounds from a liquid or biomass organic fraction produced in presence of a homogeneous catalyst in supercritical state or a mixture of said homogeneous and one or several heterogeneous catalysts mixed with water in sub-critical, near-critical, or supercritical condition.
Claims19
A method comprising:
- producing a phenolic product or group of chemically related phenolic products by liquefaction of a biomass or lignin in the presence of a homogenous catalyst in sub-, near-, or supercritical state;
- mixing one or more heterogeneous catalysts with sub-, near-, or supercritical water.
A method for selective synthesis of phenolic products by means biomass or biomass products liquefaction, comprising:
- selecting in favor of at least one phenolic compound or a mixture of phenolic compounds;
- synthesizing of the selected phenolic compounds from a liquid or biomass organic fraction;
- producing:
- said liquid or biomass organic fraction in presence of homogeneous catalyst in supercritical state;
- a mixture of said homogeneous and one or more heterogeneous catalysts mixed with water in sub-critical, near-critical, or supercritical condition.
Dependencies are inferred from the claim text.