(533a) Catalytic Upgrading of Biomass Derivatives to Renewable Jet Fuels
In this strategy, efficient deoxygenation of high carbon oxygenated furylmethanes without C-C cracking is necessary to achieve desired branched chain alkanes with high yield and selectivity. We found that bifunctional catalysts containing metal and Lewis acid sites are effective to operate the reaction at lower temperature, enabling jet fuels production with high carbon efficiency. The furan rings of furylmethanes are first hydrogenated to fully saturated cyclic ethers, which then undergo facile ring-opening and deoxygenation. Probing the reaction pathways with symmetric single furan ring surrogate molecules suggest that Lewis acid functionality is necessary for ring-opening. Maximum 97% alkane yield with 93% selectivity in C15H32 and C14H30 products is achieved at optimal reaction conditions.