Liquefaction of Lignocellulose in Fluid Catalytic Cracker Feed: A Process Concept Study

We report a process concept for lignocellulose liquefaction in a refinery stream that will be coprocessed with the resulting biocrude and that, therefore, does not require the recovery and recycling of the liquefaction solvent. Light cycle oil and vacuum gas oil were found to be the two most promising solvents. Both refinery streams could provide a liquid yield of 58 C % (64 % energy yield). A techno‐economic assessment indicates that the biocrude could be produced at an energy‐equivalent crude oil price of 51–64 $ per barrel at a wood cost of 85 $ per dry ton. Feeding wood to your fluid catalytic cracker? Wood can be suspended and liquefied in the fluid catalytic cracker feed to produce a gasoil/biocrude blend that can be processed directly in the refinery fluid catalytic cracker unit. The resulting biocrude is produced in good yield (64 % on energy basis) with a moderate oxygen content (