Table 1 Characteristics of glycerol used in this study
Name | GLY 1 | GLY 2 | GLY 3 |
|---|---|---|---|
Company | Poch, Gliwice, Poland | ORLEN Południe, Trzebinia, Poland | Grupa Azoty, Chorzów, Poland |
Origin | Waste from biodiesel production | Waste from biodiesel production | Waste from soap production |
Purity (%) | 98 | 87 | 80 |
Water % (m/m) | 0.5 | 15 | 3.6 |
Methanol % (m/m) | 0 | 0.3 | 0.2 |
MONG (matter organic non glycerol) % (m/m) | 0 | 6 | 4.0 |
NaCl % (m/m) | 0 | 0 | 7.59 |
Methanol % (m/m) | 0 | 0.3 | 0.2 |
Nitrogen content | 0 | 0.023 | 0.041 |
Ash | 0 | 0.93 | 8.76 |
Cu (mg/kg) | 0 | 0.096 | 0.66 |
Mg (mg/kg) | 0 | 1.68 | 5.45 |
Fe (mg/kg) | 0 | 1.99 | 26.42 |
Zn (mg/kg) | 0 | 0.09 | 1.30 |
K (mg/kg) | 0 | 4388.16 | 231.32 |
Na (mg/kg) | 0 | 422.85 | 31,632.89 |
Cl (mg/kg) | 0 | 1200 | 46,000 |
Ca (mg/kg) | 0 | 40.27 | 52.36 |