Combustion dynamics of crude and upgraded Thermal DeOxygenation oils in a compression ignition engine

Thermal DeOxygenation (TDO) is a robust thermochemical conversion scheme to produce hydrocarbons from biomass feedstock. The process targets the carbohydrate fraction of yield broad mixture primarily aromatic within boiling point range 348–798 K with low oxygen content (<4 wt%). resulting materials are amenable traditional hydrotreating and distillation processes approximately 70% by mass in distillate fuel range. simple combined commercially viable upgrading routes makes TDO oils feasible alternative for transportation applications. This paper first systematic treatment fit-for-purpose testing compression ignition engine. Blends partially upgraded (e.g. whole oil, distilled hydrotreated oil hydrotreated-distilled oil) prepared certified ultra-low sulfur diesel at 5%, 10%, 15% 20% volume. fuels analyzed characteristics combustion dynamics an instrumented single-cylinder All blends 10% blend level volume exhibited adequate engine performance. Hydrotreating necessary step meet cetane number EPA soot emissions requirements Combined hydrotreatment or exceed all specification performance benchmarks. Partially suitable options