Table 2.
Fuel properties of biodiesel produced from Chlorella vulgaris, Chlorella minutissima, Chlorella pyrenoidosa, Chlorella sp. 1 and Chlorella sp. 2
| Fatty acid composition (%) | Chlorella vulgaris | Chlorella minutissima | Chlorella pyrenoidosa | Chlorella sp. 1 | Chlorella sp. 2 |
|---|---|---|---|---|---|
| Saponification value (mg KOH g−1 oil) | 178.68 | 199.94 | 197.21 | 201.63 | 198.48 |
| Iodine value (g I2 100 g−1 oil) | 87.73 | 85.22 | 68.90 | 99.92 | 84.95 |
| Cetane number | 57.10 | 54.42 | 58.47 | 50.88 | 54.68 |
| DU (%) | 94.05 | 88.68 | 73.17 | 99.26 | 89.72 |
| LCSF (°C) | 5.15 | 4.88 | 6.43 | 4.81 | 7.11 |
| CFPP (°C) | −0.29 | −1.11 | 3.75 | −1.33 | 5.88 |
| Oxidation stability (h) | 5.8 | 7.2 | 8.5 | 6.2 | 5.8 |
| Cloud point (°C) | 6.43 | 10.47 | 10.07 | 9.20 | 14.86 |
| Pour point (°C) | 0.16 | 4.54 | 4.11 | 3.16 | 9.32 |
| Higher heating value (MJ/kg) | 40.78 | 39.95 | 40.31 | 39.66 | 40.01 |