Catalytic Upgrading of Residual Fat Pyrolysis Vapors over Activated Carbon Pellets into Hydrocarbons-like Fuels in a Two-Stage Reactor: Analysis of Hydrocarbons Composition and Physical-Chemistry Properties

This work investigated the influence of reaction time and catalyst-to-residual fat ratio by catalytic upgrading from pyrolysis vapors residual at 400 °C 1.0 atmosphere, on yields products, physicochemical properties (density, kinematic viscosity, acid value) chemical composition bio-oils, over a catalyst fixed-bed reactor activated carbon pellets impregnated with 10.0 M NaOH, in semi-pilot scale. The experiments were carried out using process schema consisting thermal cracking 2.0 L coupled to 53 mL, without 5.0%, 7.5%, 10.0% (wt.) batch mode. Results show bio-oil decreasing increasing catalyst-to-tallow ratio. GC-MS liquid products identified presence hydrocarbons (alkanes, alkenes, ring-containing alkanes, aromatics) oxygenates (carboxylic acids, ketones, esters, alcohols, aldehydes). For all experiments, hydrocarbon selectivity increases time, while those decrease, reaching concentrations up 95.35% (area).