Acid catalysis for the conversion of pyrolytic vapors of bio oils

RMN+ECI2D:ING+AMR:CLO:NOG:CMI:CGE:DLA:YSCInternational audienceFast pyrolysis of biomass yields bio-oils with high levels of oxygen-containing components, high acidity and low stability. Further upgrading of these oils is necessary before they can be used as liquid fuels. Several low-cost strategies have been proposed for reducing the oxygen and acid contents. Catalytic conversion of pyrolytic vapors allows a partial deoxygenation before vapor condensation. In this context, a semi-continuous pyrolysis test combined with a catalytic reactor was built and different acid catalysts were tested. The resulting bio-oils were characterized in depth to get more insights in the role of the catalyst on bio oil vapors conversion