Patent ID: 8940060
Filing Date: 2015-01-27
Classification: C10B,C10C,C10G,C10K,Y02E,Y02P

Abstract:
1. A method for forming a biomass-derived pyrolysis oil, the method comprising the steps of: washing biomass comprising a water-soluble metal component therein with wash water; separating the washed biomass and water containing water-soluble metal after washing the biomass, the washed biomass having a reduced level of metals compared to the biomass before washing; pyrolyzing the washed biomass in a pyrolysis process to form a pyrolysis vapor stream; and condensing a portion of the pyrolysis vapor stream to form a condensate having a reduced level of metals compared to the biomass before washing; wherein at least a portion of the wash water comprises a portion of the condensate.