Derived from biomass pyrolysis oil with low water content and process for its preparation

摘要

1. A method (100) reducing the water content in the resulting biomass, pyrolysis oil containing water comprising the steps of: distilling water-containing pyrolysis oil obtained from biomass in the presence of liquid which forms an azeotrope with the azeotrope give (104); iudaleniya azeotrope (106) .2. A method according to claim 1, wherein the step (104) obtained from the distillation of biomass pyrolysis oil containing water comprises heating a water-containing pyrolysis oils derived from biomass, to the minimum reflux at the boiling point of the azeotrope at atmospheric davlenii.3 this. The method (100) of preparing biomass-derived pyrolysis oils with low water content, comprising the following steps: introduction of pyrolysis oil obtained from biomass, and liquid which forms an azeotrope in the distillation apparatus, maintained at a temperature sufficient to form an azeotrope, the temperature is at least a minimum boiling point azeotrope (104), removing the azeotrope from the distillation apparatus at a temperature equal to or higher than the boiling point of the azeotrope (106); iudalenie derived from biomass pyrolysis oils with low water content of the distillation apparatus (108) .4. The method (100) according to claim 1 or 3, wherein the fluid forming the azeotrope is selected from the group consisting of toluene, ethanol, acetone, 2-propanol, cyclohexane, 2-butanone, octane, benzene and etilatsetata.5. The method (100) according to claim 1 or 3, wherein the azeotrope is selected from the following group: ethanol-water, toluene-water, acetone-water, 2-propanol-water, cyclohexane-water, 2-butanone, water, water-octane ethanol-toluene-water, 1-butanol-water-octane, benzene-2-propanol-water, ethanol-2-butanone-water and ethanol-fl