초록 |
Greenhouse gas (GHG) emissions from the aviation sector have risen rapidly over the past two decades, reaching about 2.8% of global CO2 emissions from the fossil fuel combustion. The use of alternative jet fuel (AJF, defined as hydrocarbon fuels) derived from renewable resources could contribute to the reduction of CO2 from aviation industry. Therefore, the production of sustainable AJF is highly needed to achieve the goal of IATA (International Air Transport Association) for the reduction of aviation’s lifecycle GHG emissions by 50% or more by 2050. On the other hand, decarboxylation is a key process in the production of AJF from vegetable oils to be free of oxygen. In this study, we investigated the effect of sub-/supercritical water on the degree of decarboxylation of soybean oil. The formed liquid product was examined by GC-FID, GC-TOF-MS, FTIR and elemental analyzer and the mechanism of the decarboxylation reaction was discussed. |