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US 2015/0307418 A1Published application
Methods and apparatuses for producing xylene from lignin
AssigneeUop LLC
InventorsStanley Joseph Frey, Joao Jorge da Silva Ferreira Alves
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Abstract
Methods and apparatuses are provided for producing a xylene product from a lignin supply. A method includes depolymerizing the lignin supply to produce a lignin aromatic stream, and isomerizing the lignin aromatic stream to produce an isomerized lignin stream. The desired xylene isomer is extracted from the isomerized lignin stream.
Claims20
A method of producing a desired xylene isomer from lignin comprising:
- depolymerizing a lignin supply to produce a lignin aromatic stream;
- isomerizing the lignin aromatic stream to produce an isomerized lignin stream;
- and
- extracting the desired xylene isomer from the isomerized lignin stream.
1 more element
A method of producing xylene from lignin comprising:
- depolymerizing lignin to produce a lignin aromatic stream;
- hydrotreating the lignin aromatic stream to remove oxygen and to create a hydrotreated lignin aromatic stream;
- contacting the hydrotreated lignin aromatic stream with an isomerization catalyst to produce an isomerized lignin stream;
- and
- extracting the xylene from the isomerized lignin stream.
2 more elements
An apparatus for producing a desired xylene isomer from lignin comprising:
- a lignin depolymerization unit configured to produce a lignin aromatic stream;
- an isomerization unit configured to accept the lignin aromatic stream, wherein the isomerization unit is further configured to produce an isomerized lignin stream;
- a dehydrogenation unit configured to accept the isomerized lignin stream, wherein the dehydrogenation unit is configured to produce a methyl enhanced aromatic stream;
- and
- an aromatics complex configured to accept the methyl enhanced aromatic stream, wherein the aromatics complex includes a xylene recovery unit, a transalkylation unit, and a xylene isomerization unit, and wherein the xylene recovery unit is configured to extract the desired xylene isomer.
2 more elements
Dependencies are inferred from the claim text.