Manufacturing of pressure vessels for absorption tower NMP equipment

Manufacturing of pressure vessels for absorption tower NMP equipmentIt is a separation process that utilizes the different volatilities of each component in a mixture to separate them. Commonly used equipment includes plate distillation columns and packed distillation columns. The principle and equipment process of precision distillation are the same as ordinary distillation, except that the relative volatility between the components in the system to be separated is relatively small. Therefore, high-efficiency precision packing is used to achieve the separation and purification of the components to be separated. In the production of single spice raw materials, natural essential oils often have the coexistence of isomers. For example, citronellol and roseol, which coexist in natural essential oils such as fragrant leaf oil, rose oil, and rose grass oil, are optically active isomers. The boiling point difference of these isomers is relatively small, and it is difficult to achieve effective separation of this single isolated spice using general distillation processes. Therefore, precision distillation has a wide range of applications in the production of single isolated spices. Efficient packing materials used in precision distillation columns include bulk packing materials such as Q-ring (Dixon) packing, saddle packing (McMahon) packing, and wire mesh packingCorrugated packingRegular packing represented by Sulyer packing. These fillers have a large specific surface area, good wetting properties, low liquid holding capacity and fluid resistance. However, the diameter of the bulk packing tower should not be too large, otherwise the mass transfer and separation efficiency will sharply decrease, which is the amplification effect of the packing tower. The amplification effect of regular packing is relatively small, so the application of wire mesh corrugated regular packing is becoming increasingly widespread