Table 6 Emulsion stabilities and rheological properties of vegetable oils at 70/30 OWR
Vegetable Oil | Groundnut Biodiesel mud | Soya bean Biodiesel mud | Palm oil methyl ester mud | Black seed Biodiesel mud (This study) |
|---|---|---|---|---|
pH | 9.5 | 9.4 | - | 8.65 |
ES | 706 | 815 | - | 442 |
MW (ppg) | 8.6 | 8.5 | 10.7 | 10 |
PV (CP) | 75 | 65 | 26 | 23 |
YP (Ib/100ft2) | 35 | 33 | 43 | 9 |
GS (10 s/10 m) (Ib/100ft2) | 11/13 | 9/10 | 18/24 | 9/10 |
AV | 92.5 | 81.5 | 47.5 | 37.5 |
6 rpm | 13 | 11 | 9 |