Top quality biodiesel price from used cooking oils
Biodiesel is a relatively clean fuel, widely used in automobiles, tractors, trucks, ships and so on. It refers to oil crops such as soybean, rapeseed, cotton, palm, wild oil plant and engineering micro algae and other aquatic plant oils and animal fats, food waste oil as raw oil by ester exchange and thermal chemical process can replace petroleum diesel made of renewable diesel fuel.
Biodiesel is the single alkyl ester of fatty acid (fatty acid glycerol triglyceride) with alcohol (methanol or ethanol) transesterification, and the most typical is fatty acid methyl ester. Compared with the traditional petrochemical energy, the sulfur and aromatic hydrocarbon content is low, the flash point is high, the hexadecane value is high, has the good lubrication, can be added in the fossil diesel.
| Items | Quality standard | Remarks |
| Density/(g/cm³) | 0.86-0.90 | |
| Kinematic viscosity /(mm2/s) | 3.5- 5.0 | |
| Flash point (silent)/℃ min | 120 | |
| Sulfur content (mg/kg) max | 10 | |
| Carbon residue /% max | 0.3 | Mass fraction |
| Sulfate ash /% max | 0.020 | Mass fraction |
| Water content /% max | 500 | Mass fraction |
| Mechanical impurities (mg/kg) | 24 | |
| Copper corrosion (50℃,3h)/ class max | 1 | |
| Cetane min | 51 | |
| Acid value /(mgKOH/g) max | 0.5 | |
| Methanol content /% max | 0.2 | Mass fraction |
| Free glycerine content /% max | 0.020 | Mass fraction |
| Total glycerol content /% max | 0.25 | Mass fraction |
| The content of monoglyceride content /% max | 0.8 | Mass fraction |
| 90%Recycling temperature/℃ max | 360 | |
| (Na+K)/(mg/kg) max | 5 | |
| (Ca+Mg)/( mg/kg) max | 5 | |
| Ester content /% min | 96.5 | Mass fraction |
srus content( mg/kg) max | 10 | Mass fraction |
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