Table 3 Comparison of estimated biodiesel properties of algal lipids from the different isolates as a function of the dilution rate along with the US and European specifications (B100), and those of common vegetable oils
| Â | Chlorella sp. | Scenedesmus sp. | Nitzschia sp. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
D, 1/day | 0.08 | 0.20 | 0.30 | 0.38 | 0.45 | 0.50 | 0.10 | 0.20 | 0.30 | 0.40 | 0.50 | 0.10 | 0.20 | 0.30 |
KV, at  °C mm2/s | 4.20 | 4.00 | 3.90 | 4.10 | 4.20 | 4.20 | 3.90 | 4.10 | 4.10 | 4.00 | 4.00 | 4.80 | 4.80 | 4.70 |
Specific gravity, Kg/L | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.88 | 0.87 | 0.87 | 0.87 |
CP, °C | − 2.10 | − 4.60 | − 8.00 | − 2.90 | − 2.00 | − 1.00 | − 8.20 | − 2.90 | − 2.80 | − 4.00 | − 3.70 | 11.20 | 11.30 | 10.20 |
CN, min | 51.80 | 50.60 | 48.90 | 51.40 | 51.90 | 52.40 | 48.80 | 51.40 | 51.50 | 50.90 | 51.00 | 58.50 | 58.50 | 58.00 |
IV, g I2/100Â g | 135.80 | 149.40 | 169.00 | 140.20 | 135.20 | 130.00 | 170.00 | 140.50 | 139.80 | 146.40 | 144.70 | 61.50 | 60.90 | 67.00 |
HHV, MJ/Kg | 41.40 | 41.80 | 42.20 | 41.50 | 41.40 | 41.30 | 42.20 | 41.50 | 41.50 | 41.70 | 41.60 | 39.70 | 39.70 | 39.80 |
| Â | Tetraselmis sp. | ASTM D6751-08 | EN 14214 | Camelina | Sunflower | Soy | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
D, 1/day | 0.10 | 0.20 | 0.30 | 0.40 | 0.50 | 0.60 | 0.80 | 0.90 | Â | Â | Â | Â | Â |
KV, at  °C mm2/s | 4.40 | 4.40 | 4.40 | 4.40 | 4.40 | 4.50 | 4.40 | 4.40 | 1.9–6.0 | 3.5–5 | 3.8 | 4.42 | 4.26 |
Specific gravity, Kg/L | 0.87 | 0.87 | 0.87 | 0.87 | 0.87 | 0.87 | 0.87 | 0.87 | – | 0.85–0.9 | 0.88 | 0.87 | 0.88 |
CP,  °C | 2.60 | 2.80 | 2.80 | 2.10 | 3.30 | 4.50 | 2.70 | 2.40 | – | – | 3 | 2 | – |
CN, min | 54.20 | 54.30 | 54.30 | 53.90 | 54.60 | 55.10 | 54.30 | 54.00 | 47 | 51 | 50.4 | 51.1 | 51.3 |
IV, g I2/100 g | 109.50 | 108.20 | 108.00 | 112.30 | 105.30 | 99.0 | 108.80 | 110.90 | – | 120 | 152.8 | 128.7 | 125.5 |
HHV, MJ/Kg | 40.80 | 40.80 | 40.80 | 40.90 | 40.70 | 40.60 | 40.80 | 40.80 | – | – | 45.2 | 40.6 | 39.7 |