Oil Refining means separating impurity from oil and impurity from oil based on the different characteristics of oil and impurity, in order to enhance the stability and security of oil. Oil refining includes two technologies, physical refining and chemical refining.
Details about the oil refining machine:
At the first, the heating system is made up of the fuel oil tank, fuel burner and heating furnace. The heating system possesses many advantages, such as the high heating efficiency, low heat energy consumption… Besides, the supporting burner can control the input quality of heat energy, so as to ensure the stability of the whole system.
Then, the oil distisllation system, which consists of the distillation reactor, refinery tower, heat exchange system, condenser system and oil storage. The raw oil material is heated and processed in the oil refining system. In addition, before the raw material entering the refining reactor, it will passes the heat exchange system to have a heat exchange. This kind of structure can largely increase the production efficiency and save more fuel. The raw material in the heating furnace will be heated circularly to reach the related temperature. The refinery tower with the unique structure largely improves the oil quality; the condenser system has adopted the design of tube condenser that can be easily opened at both ends, and it is also convenient for daily cleaning and maintenance.
Next, the dedusting system of the oil refining plant includes the lye tank, tower spray desulfurization and dedusting, draf fan. The system can not only make tail gas meet the international emission standards but also can use the spray lye to absorb the sulfur dioxide through the acid-base neutralization, and in this way, it can realize environmental protection.
Finally, the intelligent electric control system of oil refinery units is made up of digital display cabinet and the parameters of field acquisition, possessing the advantages that the parameters of temperature, pressure and liquid level can be displayed clearly in the digital display cabinet, so as to reduce the unnecessary danger and waste because of the human factor.
Continuous Refining Decoloring Process:
The main function of decoloring process is to remove oil pigment, residual soap grain and metal ions. Under negative pressure, the mechanical mixing method combined with steam mixing will improve the decoloring effect.
The degummed oil firstly enters into the heater to be heated to the appropriate temperature (110℃), and then goes to the bleaching earth mixing tank. The bleaching earth is delivered from the low bleaching box to the temporary tank by wind. The bleaching earth is added by automatic metering and is interlockingly controlled with the oil.
Continuous Refining Deodorizing Process:
The qualified decolored oil enters into the spiral plate heat exchanger to recover most of the heat, and next goes to high pressure steam heat exchanger to be heated to the process temperature (240-260℃) and then enters the deodorization tower. The upper layer of combined deodorization tower is the packing structure which is mainly used to remove the odor producing components such as free fatty acid (FFA); the bottom layer is the plate tower which is mainly for achieving the hot decoloring effect and reducing the peroxide value of the oil to zero. Oil from the deodorization tower enters into the heat exchanger to recover most of the heat and makes further heat exchange with crude oil, and then is cooled to 80-85℃ through the cooler. Add the required antioxidant and flavor agent, and then cool the oil below 50℃ and store it. Such volatiles as FFA from the deodorizing system are separated by the packing catcher, and the separated liquid is FFA at low temperature (60-75℃). When the liquid level in the temporary tank is too high, the oil will be sent to the FFA storage tank.