MTBE extraction column packing type

Punched leather-textured regular filler, size 350 – I was wondering if that would work?

　　1. Regular packing Advantages: It has large void spaces, resulting in high production capacity and low pressure drop. Due to the regular flow pattern, as long as the liquid is evenly distributed at the beginning, it will remain evenly distributed throughout the tower. As a result, regular packingほとんど amplification effect, and it usually exhibits very high mass transfer efficiency. 　　Disadvantages: It is costly, prone to clogging and difficult to clean; therefore, it is generally used in industry for situations where separation is difficult or requires high precision. 　　2. Raschig ring packing Advantages: It is easy to manufacture, inexpensive, and has been well studied; as a result, it has been widely used for a long time. 　　Disadvantage: Due to the high height-to-diameter ratio, linear contact is likely to occur between the packing elements during stacking; as a result, severe channeling and wall flow phenomena often occur as the liquid flows through the packing layer. Furthermore, the internal surface wetting rate of the Thera-Cycle packing is low, resulting in a low mass transfer rate as well. 　　3. Pall ring packing. Developed on the basis of Raschig rings, Pall rings feature one or two layers of rectangular holes on their side walls; the material of these holes does not separate from the side walls but instead forms inwardly curved fins. 　　Compared to Raschig rings, Pall rings not only have a higher production capacity and lower pressure drop, but also offer better separation efficiency, with reduced channeling phenomena. 　　4. Stair ring packing ； 　　The structure of the stepped ring packing is similar to that of the Pall ring packing; rectangular holes are present on the wall of the ring, and there are two layers of cross-shaped vanes arranged at 45° to each other inside the ring. The height of the ring is half of its diameter, and one end of the ring has a flared edge in the shape of a trumpet. " 　　Such a structure further improves the performance of the stepped ring packing compared to Bauer rings; its production capacity can be increased by about 10%, while the pressure drop can be reduced by 25%. Moreover, due to multiple points of contact between the packing elements, the bed is uniform, which helps to prevent channeling phenomena. 　　Ladder rings are generally made of plastic and metal, and they are widely used because their performance is superior to that of other fillers with openings on their side walls. 　　5. Arc-saddle (Berl saddle) and Intalox saddle packers ； 　　Advantages: Compared with Raschig rings, it has a higher porosity, lower gas resistance, and better liquid distribution performance, offering superior characteristics over Raschig rings. 　　Disadvantage: Adjacent packing elements tend to overlap each other, reducing the effective surface area of the packing and thus affecting the mass transfer rate; as a result, arc-saddle packing was quickly replaced by rectangular-saddle packing. 　　The rectangular saddle is a structurally asymmetric saddle-shaped packing that has been developed on the basis of the arc saddle. The two ends of the rectangular saddle packing are rectangular, and the two sides of the packing are of different sizes. Such a structure enables the rectangular saddle to overcome the drawback of overlapping arc saddle fillers, thereby improving the uniformity of the fillers. This thus ensures uniform liquid distribution and improves the gas-liquid mass transfer rate. Ceramic rectangular saddle packing is the most commonly used type of ceramic packing at present. 　　6. Metal Intalox fillers ； 　　A filler of unique structure that combines the characteristics of ring-shaped and saddle-shaped structures, it possesses excellent properties such as high production capacity, low pressure, good liquid distribution, high mass transfer rate, and great operational flexibility; as a result, it is widely used, with its advantages being even more pronounced in vacuum distillation.

Several sets of industrial operation data from packed towers have shown that the packing used for water extraction of methanol from C4 hydrocarbons is indeed ineffective. And the sieve plate tower is the best. It can be kept below 50 ppm. Selection of main materials. There is slight corrosion.

Several sets of industrial operation data from packed towers have shown that the packing used for water extraction of methanol from C4 hydrocarbons is indeed ineffective. And the sieve plate tower is the best. It can be kept below 50 ppm. Selection of main materials. There is slight corrosion.