Reduced Pressure Distillation(rpd) was performed to obtain distilled bio oil from pyrolysis bio oil. the distilled bio oil yields of 61 wt% from rpd of fast pyrolysis bio oil werw obtained. 

the distilled bio oil has lower content of oxygen and higher heating value.
these properties of distilled bio oil make it more suitable for fuel oil use and as a source of chemicals than fast pyrolysis bio oil.
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