Improving the low-temperature properties of alternative diesel fuels: Vegetable oil-derived methyl esters

摘要: This work explores near-term approaches for improving the low-temperature properties of triglyceride oil-derived fuels direct-injection compression-ignition (diesel) engines. Methyl esters from transesterified soybean oil were evaluated as a neat fuel and in blends with petroleum middle distillates. Winterization showed that cloud point (CP) methyl soyate may be reduced to −16°C. Twelve cold-flow additives marketed distillates tested by standard methodologies, including CP, pour (PP), kinematic viscosity, cold filter plugging (CFPP), flow test (LTFT). Results additive treatment significantly improves PP distillate/methyl ester blends; however, do not greatly affect CP or viscosity. Both CFPP LTFT nearly linear functions result compares well earlier studies untreated blends. In particular, proved capable reducing neart 5–6°C. supports research on properties; is, ester-based diesel should continue focus CP.