Table 1 Composition of REG-glycerol, REG-fatty acids and REG-glycerin bottom
Component (%) | REG-80 (glycerol) | REG-FFA (free fatty acids) | REG-GB (glycerol bottom) |
|---|---|---|---|
Glycerin | 78 (82)a | ND | 45–65 (54) |
Potassium acetate | <15 (10) | ND | ND |
Moisture/volatiles | <13 (11) | <6 | 2 [0 (0.5)] |
MONGa/fatty acids | 0.02 (1.0) | >60 (75) | 20–35 (25) |
Methyl esters | 0.05 (0.3) | 10–15 | – |
Methanol | – | <1 | 0.25 |
Ash | – | – | 20 (13) |
Density (Kg/m3) | 1.25 (1.23) | 0.74–0.77 (7.5) | – |
Insoluble impurities | – | <2 | – |
Color | Brown | Brown | Black |
Energy content (Btu/lb) | 5000–10,000 (7000) | 12,000–14,000 (13,000) | ND |