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Structured packing is a kind of packing arranged and stacked in accordance with uniform geometry in the tower. The geometry of the whole tower section is regular, symmetrical and uniform, and the gas-liquid flow path is specified, which reduces the phenomenon of channel flow and wall flow, and the pressure drop can be very small. Under the same energy cost and pressure drop, it can provide more specific surface area than random packing, and achieve higher mass transfer and heat transfer efficiency in the same volume. At the same time, due to the uniformity, regularity and symmetry of its structure, when it has the same specific surface area as random packing, its void ratio and flux is larger, and its comprehensive processing capacity is much larger than tray tower and random packing tower. After careful design, manufacture, installation and operation of tower internals (such as gas-liquid distributor), the industrial amplification effect is not obvious. In recent decades, structured packing has been widely used in many towers in fine chemical industry, perfume industry, oil refining, fertilizer, petrochemical industry and other fields.
Our company mainly produces and supplies two kinds of metal structured packing, corrugated orifice plate structured packing and wire mesh structured packing.
Surface areas: 250 m2/m3, 500 m2/m3, 750m2/m3, 1000m2/m3, 1200m2/m3 etc.
Material: AISI304, AISI304L, AISI316, AISI316L, carbon steel, etc.
| Specifications of Metal Wire Gauze Packing | ||||||||
| Packing type | Specific surface area m2/m3 | Bulk density kg/m3 | Void volume m3 | Pressure drop per plate Pa/n | HETP mm | Theoretical plate number m-1 | F factor m/s0.5 | Stage height m |
| 250 (AX) | 250 | 125 | 0.95 | 10-40 | 100 | 2.5-3 | 2.5-3.5 | 5 |
| 500 (BX) | 500 | 250 | 0.90 | 40 | 200 | 4-5 | 2.0-2.4 | 3-4 |
| 700 (CY) | 750 | 350 | 0.85 | 67 | 400-333 | 8-10 | 1.5-2.0 | 5 |
250 (AX) Precision rectification for high productive capacity and less theoretical plate number.
500 (BX) Vacuum rectification for thermo sensitive system and hard separation system, especially suitable for rectification with pressur lower than 7KPa.
700 (CY) Separation of isotopic compound and isomeric compound.
Its high mass transfer surface area is suitable for close boiling components distillation due to shorter columns.
Its structured arrangement ensures no channeling of liquid and requires minimum liquid redistribution.
Due to its very low pressure drop, it is recommended for vacuum distillation systems.
It has higher vapour load capacity as compared to random packing and trays.
It provides low liquid hold-up.
Refinery columns (atmospheric and under vacuum).
Petrochemical columns.
Natural gas glycol dehydration.
Wastewater treatment stripping columns.
Atmospheric pressure and high pressure columns.
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