Table 5 Emulsion stabilities and rheological properties of vegetable oils
Vegetable Oil | Groundnut Biodiesel mud | Soya bean Biodiesel mud | Palm oil methyl ester mud (Sauki, 2015)[15] | Waste cooking biodiesel mud (Li, 2015)[21] | Black seed Biodiesel mud (This study) |
|---|---|---|---|---|---|
pH | 8.9 | 9.2 | - | - | 7.3 |
ES | 870 | 1030 | - | 1540 | 398 |
MW (ppg) | 8.3 | 8.3 | 10.7 | 8.56 | 10 |
PV (CP) | 53 | 49 | 15 | 13.5 | 41 |
YP (Ib/100ft2) | 29 | 23 | 21 | 10 | 11 |
GS (10 s/10 m) (Ib/100ft2) | 8/9 | 7/9 | 8/16 | 9/10.5 | 10/12 |
AV | 67.5 | 60.5 | 25.5 | - | 46.5 |
6 rpm | 10 | 9 | - | - | 10 |