(507c) Catalytic Hydrodeoxygenation of Hydrothermal Liquefaction (HTL) Derived Bio-Oil from Corn Stover for Sustainable Aviation Fuels

Hydrothermal liquefaction (HTL) is an effective thermochemical technology to convert biomass into fuels and value-added products. In this study, preprocessed corn stover was hydrothermally liquified at subcritical temperatures to generate bioproducts such as char, heavy bio-oil (HBO), liquid biocrude and gases. The extracted HBO using polar aprotic (acetone) solvent was dried and subjected to catalytic hydrodeoxygenation (HDO) for upgradation in the custom-made 20 ml SS316 reactor. HBO was characterized using gas-chromatography mass spectrometry (GC-MS) to analyze the hydrocarbons. Elemental analysis of HBO and upgraded oil was performed to understand the oxygen content and higher heating value (HHV). ASPEN plus was utilized to determine the theoretical amount of hydrogen required to perform the HDO reaction. Yields of HTL derived HBO, upgraded oil, and ASPEN plus modelling results will be presented under different experimental conditions of catalyst loading, temperature/pressure conditions, and residence time.