With the rapid development of the economy and the improvement of people’s living standards, the requirements for waste oil distillation towers of petrochemical enterprises are more stringent. For current petrochemical enterprises, how to reduce operating costs and improve distillation efficiency has become an urgent need for enterprises. The appearance of stainless steel corrugated structured packing has brought a new choice for the packing type selection of waste oil rectification tower.
Metal Structured Packing
Stainless steel corrugated structured packing is a new type of metal structured packing, which is usually made of stainless steel plates and other horizontal stacks. Each small disc is corrugated, so it is called corrugated packing. Its excellent mechanical strength and high flowability have been widely used in waste oil distillation towers.
Advantages of Corrugated Structured Packing
Compared with traditional cylindrical structured packing, stainless steel corrugated structured packing has the following advantages:
- Save filler consumption. The gap between the structured packings can be larger, and it is not necessary to completely fill the column bed. This can save the amount of packing and reduce the burden on the tower body.
- The packing density is high, and the contact area with the medium in the tower is large.
- The wavy shape makes the filler have better wettability, which is conducive to the separation of different substances.
- It has good mechanical strength and thermal stability, and is not easy to break under high flow and high temperature.
Structured Packing Application of Rectification Principle
Rectification is a method of separating components by means of heating and cooling according to the different chemical properties of each component in the mixture. In the rectification of waste oil, stainless steel corrugated structured packing is added to the tower body, and the foam or liquid film formed by the raw material on the packing layer further disperses the packing and adsorbs on the packing surface, thus increasing the contact area of the two-phase flow . At the same time, the wavy shape of the structured packing makes the material pass through the peaks and troughs, which has a stronger stirring effect, so that the material can be transferred faster and more uniformly on the tower bed.
Effect
In practical application, the waste oil rectification tower with stainless steel corrugated structured packing can reduce the gas-liquid resistance and the noise generated during operation. Gas and liquid flow within the packing creates agitation, which increases the probability of contact between components in the mixture and improves separation efficiency. And the tiny pores in the stainless steel corrugated structured packing can prevent the frequent formation of large bubbles, thereby reducing the airflow resistance, bubble explosion and disassembly risks during operation.
In conclusion, stainless steel corrugated structured packing, as a new type of packing, has been widely used in waste oil distillation towers. It has the advantages of saving the amount of packing, high packing density, better wettability of the packing due to the wave shape, high mechanical strength and thermal stability, etc., which makes the waste oil distillation tower more effective and safe in the production process.
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