Effect of PPDC-FAPE 7 on the Fuel Properties of Biodiesel
Blends
In summary, 2000 ppm PPDC-FAPE 7 (4:1) presents the best depressive
effect on B20. Table 4 shows the fuel properties of B20 with 2000 ppm
PPDC-FAPE 7 (4:1). In the presence of 2000 ppm PPDC-FAPE 7 (4:1), the
CP, CFPP, and PP of B20 are reduced from -2, -4, and -14 °C to -6, -14,
and -33 °C, respectively.
PPDCs imparts excellent cold flow properties to the biodiesel blends and
has a slightly affect other properties. The flash point is the lowest
temperature at which fuel vapor flashes and burns immediately when it
encounters the flame in the air. Fuels with high flash points are less
susceptible to fire and are easier to transport. B20 with and without
PPDCs has flash points much higher than ASTM D7467, greatly improving
transportation safety. In addition, the acid value remained unchanged,
whereas the kinematic viscosity and density increased slightly. The
experimental data satisfied the standard of biodiesel blends (ASTM
D7467).