Storage process for base oil tanks

Can carbon steel storage tanks be used directly for storing base oils? Answer: Carbon steel storage tanks can be used directly for storing base oils, provided that only the quality requirements for the base oils are considered. Carbon steel is the most commonly used material among ordinary steels; it has a relatively low price and possesses a certain degree of resistance to acids and alkalis as well as pressure resistance, which makes it widely used in base oil storage tanks, especially small ones. Precautions: However, carbon steel has poor corrosion resistance; if the base oil contains corrosive components or if it is stored in harsh conditions (such as high temperatures and high humidity), this can lead to corrosion of the inner walls of the carbon steel storage tanks, thereby affecting the quality and safety of the base oil. Therefore, during long-term use, carbon steel storage tanks should be regularly inspected and maintained, and anti-corrosion treatment should be applied when necessary. Is insulation and heat tracing required for the storage tank? Insulation: Whether it is necessary depends on the storage temperature requirements for the base oil and the local climate conditions. If the base oil needs to remain stable at lower temperatures, or if the local climate is cold and causes the base oil in the storage tank to solidify easily, then the tank needs to be insulated. Heat mixing: For storage tanks that require temperature maintenance, heat mixing (heating) is necessary. The choice of heating method should be determined by considering factors such as the properties of the base oil, the required heating temperature, and cost. Electric stirring heating offers advantages such as fast heating speed and precise temperature control, but it is relatively expensive and requires a large amount of electrical energy. Steam heating is less costly, but the heating speed and temperature control may not be as precise as those of electric heating. Therefore, in practical applications, a choice should be made based on the specific circumstances. Is it feasible to use a screw pump? Answer: It is feasible to use a screw pump. The single-screw pump is a type of internal meshing rotary positive-displacement pump that features a simple structure, easy maintenance, and stable flow, making it highly suitable for transporting base oils. Precautions: When using a screw pump to transport base oil, attention should be paid to factors such as the pump’s speed, sealing performance, and the viscosity of the base oil. Excessively high rotation speeds can lead to increased wear inside the pump, affecting its performance and service life. At the same time, the pump’s seals should be checked regularly to ensure they are in good condition and to prevent leaks. Furthermore, the cleanliness of the base oil is also very important; if it contains impurities or particles, it may cause damage to the internal structure of the pump.

1. Carbon steel storage tanks can be used directly for storing base oils of type 2 and type 3, as these oils cause less corrosion to the containers, eliminating the need for anti-corrosion treatment on their inner walls. 2. Whether insulation and heating are necessary depends on the properties of the base oil being stored and the storage environment. If operating in a low-temperature environment or when the viscosity of the base oil is high, it is recommended to use insulation and heating measures. The method of heating for mixing can be electric heating or steam heating; the choice depends on energy costs and equipment investment. 3. It is feasible to use screw pumps for transferring oils; screw pumps are suitable for transporting liquids with high viscosity and can meet the requirements for transporting base oils. .

Insulation and heat tracing depend mainly on the properties of the oil, that is, its behavior as temperature changes, as well as the local climate and minimum temperatures. Carbon steel can meet the requirements for oil storage, and most pumps can be used for this purpose.