Renewable diesel production from catalytic pyrolysis feedstock

A process for preparing renewable diesel fuel, comprising:

• a) feeding biomass, catalyst composition, and transport fluid to a catalytic pyrolysis process fluidized bed reactor maintained at reaction conditions to manufacture a raw fluid product stream,
• b) feeding the raw fluid product stream of a) to a solids separation and stripping system to produce separated solids and a fluid product stream,
• c) feeding the fluid product stream of b) to a fractionation system in order to recover a first fraction boiling at or above 180° C. to 350° C.,
• d) mixing the first fraction of c) with at least one distillate cut having lower aromatic content than the first fraction in order to dilute the aromatic content of a resultant mixture below 60 wt. %, wherein the at least one distillate cut has a boiling point range compatible with diesel fuel, wherein the distillate cut having lower aromatic content than the first fraction proportion in the blend of step d) is above 40 wt %,
• e) hydrogenating at least a portion of a blend generated in d) with hydrogen at hydrogenation conditions to produce a hydrogenated fraction,
• f) optionally recovering diesel fuel comprising naphthenes from the hydrogenated fraction of e).