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US 10,519,079 B2Granted
Low metal biomass-derived pyrolysis oils and processes for producing the same
AssigneeUop LLC
InventorTimothy A. Brandvold
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Abstract
Low metal biomass-derived pyrolysis oils and processes for producing the same are provided. Low metal biomass-derived pyrolysis oil is produced by a process of contacting metal-containing biomass-derived pyrolysis oil with an acidic ion-exchange resin having sulfonic acid groups. Low metal biomass-derived pyrolysis oil is removed from spent acidic ion-exchange resin after ion-exchange.
Claims10
A process for producing low metal biomass-derived pyrolysis oil comprising the steps of:
- contacting metal-containing biomass-derived pyrolysis oil with an acidic ion-exchange resin having sulfonic acid active groups to form low metal biomass-derived pyrolysis oil and spent acidic ion-exchange resin;
- removing the low metal biomass-derived pyrolysis oil from the spent acidic ion-exchange resin;
- and
- washing the spent acidic ion-exchange resin with a solvent selected from the group consisting of methanol, ethanol, acetone, and combinations thereof to remove at least a portion of residual low metal biomass-derived pyrolysis oil from the spent acidic ion-exchange resin and to retain residual solvent in the residual low metal biomass-derived pyrolysis oil;
- processing the residual low metal biomass-derived pyrolysis oil and residual solvent retained in the residual low metal biomass-derived pyrolysis oil into biofuel.
2 more elements
Dependencies are inferred from the claim text.