Fractional catalytic pyrolysis is a process selectively targeting individual biopolymercomponents of the biomass to produce specific product slates. This method was used to screenseveral biomass feedstocks (switchgrass, corn stover, pinewood, hybrid poplar wood, oakwood)for adhesives production. Pyrolysis experiments were conducted at 400 to 450 °C and pyrolysisoil yields ranged from 30-50 wt%. The oils had very low molecular weight, low viscosity andpH of 3-4. The oils were used as substitutes for phenol in phenol /formaldehyde reactions. BothNovolac and Resol resins were prepared from the oils. For these reactions, there was no need forany pretreatments such as extractions, filtrations or neutralization (they were used as received).Excellent polymerization results were obtained and up to 95 wt% of the phenol could be replacedby the oils. The results were similar for all feedstocks except switchgrass oils which did notform good resins. All the oils were rich in both hydrocarbons and phenolics. However, theswitchgrass oil had the highest hydrocarbon fraction.
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