Back to results
US 7,578,927 B2Granted
Gasoline and diesel production from pyrolytic lignin produced from pyrolysis of cellulosic waste
AssigneeUop LLC
InventorsTerry L. Marker, John A. Petri
Life of this patent
Estimating the term…
Abstract
A process for the conversion of biomass to a liquid fuel is presented. The process includes the production of diesel and naphtha boiling point range fuels by hydrocracking of pyrolysis lignin extracted from biomass.
Claims16
A process for producing hydrocarbon products comprising:
- adding water to a mixture of pyrolysis oil and lignin;
- separating pyrolysis oil and lignin from the mixture comprising pyrolysis oil and lignin thereby generating a water rich phase stream and a pyrolytic lignin stream;
- passing the pyrolytic lignin stream to a hydrotreating unit thereby generating a deoxygenated light oil stream, wherein the hydrotreating unit is operated at a pressure in the range from about 5.5 MPa (800 psia) to about 8.3 MPa (1200 psia);
- passing the deoxygenated light oil stream to a separation unit thereby generating an aqueous stream and an organic stream;
- passing the organic stream to a hydrocracking unit and reacting the organic stream under mild hydrocracking conditions, thereby generating a product stream comprising hydrocarbon compounds useful for gasoline production or diesel fuel;
- and
- passing the water rich phase stream to a reforming unit, thereby generating a hydrogen stream.
4 more elements
A process for producing hydrocarbon products comprising:
- adding water to a mixture of pyrolysis oil and lignin;
- separating pyrolysis oil and lignin comprising pyrolysis oil and lignin thereby generating a water rich phase stream and a pyrolytic lignin stream;
- passing the pyrolytic lignin stream to a hydrotreating unit thereby generating a deoxygenated light oil stream, wherein the hydrotreating unit is operated at a pressure in the range from about 5.5 MPa (800 psia) to about 8.3 MPa (1200 psia);
- passing the Light oil stream to a hydrocracking unit and reacting the light oil stream under mild hydrocracking conditions, thereby generating a product stream comprising hydrocarbon compounds;
- and
- passing the water rich phase stream to a reforming unit, thereby generating a hydrogen stream.
3 more elements
Dependencies are inferred from the claim text.