Device for preparing bio-oil, system for preparing bio-oil and method for preparing bio-oil using the same

A system for preparing bio-oil, comprising:

• a reactor configured to have an inclined portion formed to be inclined to at least one side portion thereof, and to move biomass along the inclined portion;
• a hot-sand supplier configured to be provided at one side of an upper portion of the reactor, and to supply high-temperature hot sand to an upper side of the biomass so that the biomass is disposed between the inclined portion and the hot-sand supplier;
• a heater configured to heat the inclined portion so as to fast pyrolyze the biomass together with the hot sand moved downward along the inclined portion;
• a cyclone mechanism configured to receive gas produced in the interior of the reactor and to remove a solid matter contained in the gas;
• a condenser configured to condense the gas obtained by removing the solid matter in the cyclone mechanism and to extract bio-oil.

A method for preparing bio-oil, comprising:

• a biomass supply step of supplying biomass to an inclined portion formed on a side portion of the reactor;
• a hot-sand supply step of supplying high-temperature hot sand to an upper side of the biomass supplied to the inclined portion;
• a fast pyrolysis step of heating the inclined portion to fast pyrolyze the biomass together with the hot sand moved downward along the inclined portion;
• a cyclone step of receiving gas produced in the fast pyrolysis process of the biomass to remove a solid matter contained in the gas;
• and
• a condensation step of condensing gas obtained by removing the solid matter in the cyclone step to extract bio-oil from the gas.