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This equipment uses kerosene as raw material. After heat exchange and heating, the raw materials enter the flash tower after heating to a certain temperature. Separate the components of the raw material that are easy to produce. Light liquid non-condensable gas are obtained at the top of the flash tower. The raw materials after flash steaming are reheated and enter the separation tower. After separation, the top of the tower is the 200# solvent oil. The bottom of the tower gets more than 200℃ distillate, according to the actual need to do diesel processing material or to do ore solvent.
The process includes high vacuum film evaporation Anti-coking technology, the gas phase directed cracking technology, fractional column, rectifying column, Pyrolysis of waste engine oil or heavy oil from long carbon chain (C22-C40) to hydrocarbon (C12-C18) in diesel group. The obtained diesel index are accord with GB19147 standard and have high cetane number characteristics.
Refining process
Refining consists of two parts: degumming and liquid catalyst.
1. Product program
The product scheme of the plant is light component oil diesel - vacuum residue scheme.
The main products are as follows：
Light component oil ---- fuel oil mix
Diesel ----- Finished diesel
Vacuum residue waterproof additive or cracking raw material (cracking as fuel oil)
Raw materials and products
1.Material properties
The raw material is waste oil provided by the customer. The basic data is as follows:
| Item | Test Numerical value | Standard |
| Appearance | Dark black | Visual test |
| Smell | Gasoline diesel and burnt smell | Nasal smell |
| Density（20℃）/kg*m-3 | 880.7 | GB/T 1884——92 |
| viscosity（40℃）/mm2*s-1 | 67.28 | GB/T 265——88 |
| viscosity（100℃）/mm2*s-1 | 14.23 | GB/T 265——88 |
| Acid value/mg*g-1 | 1.61 | GB/T 7304——83 |
| Residual carbon mass fraction/% | 1.76 | GB/T 268——87 |
| Ash mass fraction/% | 0.78 | GB/T 508——85 |
| Pour point/mg*g-1 | -24 | GB/T 3535——83 |
| Open flash point/℃ | 192 | GB/T 3536——88 |
| Moisture mass fraction/% | 0.1 | GB/T 260——88 |
| Mechanical impurity mass fraction/% | 0.23 | GB/T 511——88 |
| Sulphur content/mg*kg-1 | 4040 | GB/T 387——90 |
| Nitrogen content/mg*kg-1 | 1692 | GB/T 9170——88 |
| Pentane insoluble mass fraction | 14.1 | Gb/T8926A |
Waste oil composition：
| Saturated hydrocarbon/% | Mononuclear aromatics/% | Bicyclic aromatic hydrocarbon /% | Polycyclic aromatic hydrocarbons - polar compounds /% |
| 75-79 | 13 | 3.5 | 6.5 |
Saturated hydrocarbon classification：
| alkane/% | cycloakane | |||
| 1cycle/% | 2 cycle/% | 3 cycle/% | 4 cycle/% | |
| 27 | 27 | 18.5 | 12 | 15 |
The physical composition of waste lubricating oil is complex, and it has the properties of high temperature coking and heat sensitivity.
2.Product and by-product summary
The main products of this project are diesel, and the product results are as follows：
Product distribution：
| No. | Item | Oil yield | Usage |
| 1 | Diesel | 85% | * Gas station blending |
| * Diesel car are used | |||
| 2 | Residual oil | 12% | * Cracking materials |
| * Water-proof material | |||
| 3 | Non-condensable oil | 3% | * It can be used as fuel by gas spray gun. |
| * Excess waste gas can be stored through a storage system. |
12% Overview of residue decracking products：
| Item | Yield |
| Cracking oil materials | 75% |
| Residual | 20% |
| Non-condensable gas | 5% |
3. Product feature
Diesel:（Different regional raw materials, the results will be different）
| Item | Unit | Data |
| Density（20℃） | Kg/m3 | 830.6 |
| Flash point | ℃ | 55-60 |
| Acid value | mgKOH/ml | 0.07 |
| Viscosity mm2/s | mm2/s | 4.6 |
| Cetane number | ＞55 | |
| Moisture | no | |
| Mechanical impurities | no | |
| sulphur（mass fraction） | mg/mg | 0.03% |
Gas phase pyrolysis distillation data：
| Distillate mass/% | Detection of distillation temperature of gas phase cracking oil /℃ |
| Initial boiling point | 84 |
| 5 | 156 |
| 10 | 170 |
| 50 | 289 |
| 90 | 326 |
| 95 | 335 |
| Dry point of distillation | 342 |
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Wanrong Environmental Protection Technology Co., Ltd, is occupied in Petroleum refining, Pro-Environment, Chemical Technical Application, Technical Research and Development of the Project. Project design Equipment manufacturing and sales.
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