Patent ID: 8476480
Filing Date: 2013-07-02
Classification: C10B,C10C,C10G,C10K,C10L,Y02E

Abstract:
1. A method of fractionating bio-oil vapors, said method comprising: providing bio-oil vapors comprising bio-oil constituents; cooling the bio-oil vapors in a first stage comprising a condenser having passages for the bio-oil vapors separated by a heat conducting wall from passages for a coolant, wherein the coolant in the condenser of the first stage is maintained at a substantially constant temperature, set at a temperature in the range of 75 to 100° C., to condense a first liquid fraction of liquefied bio-oil constituents in the condenser of the first stage; and collecting the first liquid fraction of liquefied bio-oil constituents from the condenser of the first stage.