Open Access

Table 7

Comparison of physical and chemical properties of biodiesel produced from Cannabis sativa L. and other raw materials based on the EN 14214 standard.

No Property Unit EN 14214
This study Sterculia foetida [79] Sinapis alba [5] Grape seed oil biodiesel [87] Flaxseed oil biodiesel [57]
Min. Max.
1 Higher heating value kJ/kg 38.80 39.86 39.931 39.95 40.46
2 Density at 15 °C g/cm3 0.86 0.90 0.872 0.892 0.878 0.882 0.876
3 Kinematic viscosity at 40 °C mm2/s 3.50 5.00 4.329 5.579 5.413 4.32 2.97
4 Cetane number 51 37.36 57.23 52.8 43
5 Acid value mg KOH/g 0.50 0.40 0.336 2.24
6 Iodine value g iodine/100 g 120 160.66 90.4 106.26 169.11
7 Oxidation stability min 8 9.42
8 Saponification number mg KOH/g 200.63 157.08
9 Linolenic acid methyl ester (m/m)% 0 11.701
10 Polyunsaturated methyl ester (≥4 double bonds) (m/m)% 1.0 0.17 0
11 Color Dark greenish 2.0 Yellow orange
12 Physical state at room temperature Liquid
13 Flash point °C 101 >120 162 164 171
14 Cloud point °C Report −1.30 1 5 −6.2 −4
15 Cold filter plugging point °C Report −4.52 0 −10.5
16 Pour point °C −6.87 −3 −18 −8 −9
17 Carbon wt.% 77 77.11 77.34 76.90
18 Hydrogen wt.% 12 11.16 11.90 11.30
19 Oxygen wt.% 11 11.73 10.27
20 Copper strip corrosion, 3 h at 50 °C Degree of corrosion Class 1 1a 1a
21 P content mg/kg 1.0 4.1 9.254
22 Mn content mg/kg 0.093
23 Group I metals (Na + K) mg/kg 5.0 136.59 56.15
24 Group II metals (Ca + Mg) mg/kg 5.0 4.95 25.117

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