A method for the production of bio-oil

The present invention relates to a method for providing a bio-oil from biomass, wherein the method comprises the steps of: - adding a biomass with a lignin content of from 0 to 40 wt%; - adding a non-aqueous fluid; - adding a base comprising potassium ions; - subjecting the mixture to thermal treatm...

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Bibliographic Details
Main Author Edling Hultgren, Anders
Format Patent
LanguageEnglish
Published 20.06.2024
Subjects
CHEMISTRY
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
METALLURGY
MINERAL WAXES
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION
RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES
REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS
REFORMING OF NAPHTHA
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:The present invention relates to a method for providing a bio-oil from biomass, wherein the method comprises the steps of: - adding a biomass with a lignin content of from 0 to 40 wt%; - adding a non-aqueous fluid; - adding a base comprising potassium ions; - subjecting the mixture to thermal treatment at a temperature of from 100 °C to 320 °C to obtain a liquid comprising bio-oil; - adding an acid to precipitate salts; - subjecting the liquid comprising bio-oil to a temperature of from 10 °C to 320 °C to obtain a mixture comprising an aqueous phase and a bio-oil; and - removing the aqueous phase from the mixture to obtain a demetallized bio-oil; - whereby the demetallized bio-oil obtained has a total metal content of less than 200 ppm, and a total phosphorus content of less than 10 ppm.
Bibliography:Application Number: SE20220030428