Study of Catalytic Pyrolysis of Biomass Sorghum (Sorghum bicolor L. Moench) Using Design of Experiments and Surface Response Methodology

This study proposes a screen of variables that have an influence on the modification bio-oil chemical composition as unique critical quality attribute (CQA) throughout pyrolytic process (zeolite, ZSM-5) by using 24 full factorial design, followed optimization through response surface methodology (RSM) based central composite design (CCD) involving samples biomass sorghum BRS716 (Sorghum bicolor L. Moench). The pyrolysis pure biomasses and impregnated with catalyst was carried out in vertical bench furnace at 500 °C. Screening involved factor variation two levels (–1 +1) four parameters (CPPs) such heating rate (°C min–1), nitrogen flow (mL amount (g), (% m/m), leading to obtaining bio-oil. Thus, it possible create from these (biomass catalyst), which minimum point reached. production rich hydrocarbon compounds is possible, but large required. Two analytical techniques gas chromatography coupled mass spectrometry (GC-MS) mid-infrared (MIR) spectroscopy, provided additional information fully characterize composition.