700Y Wire Gauze 200mm Structured Packing Experience Values Large Diameter
The mass transfer efficiency of wire mesh corrugated packing is directly determined by its specific surface area. According to the specific surface area, it can be divided into 250, 500 and 700 types. As the corrugated metal mesh filler belongs to the type of liquid membrane mass transfer, opening holes on corrugated filler sheet or making double-layer wire mesh filler to strengthen the uniform distribution of liquid on the corrugated wire mesh sheet, especially in low spray density, whether to ensure the uniform distribution of liquid on the wire mesh sheet is the key to maintain high separation efficiency.
Materials of Construction
The most common material used for Hualai structured column packing is SS 304L and SS 316L. However Hualai manufactures this solely based on our customers’ requirements and can also be made from other materials based on special requests. Other materials like Titanium, duplex 2205, copper, etc. are also no problem with us.
Uniform Liquid Distribution
In order to achieve even liquid distribution over the packing it is a must to have a good liquid distributor to maximize the interaction of the liquid and vapor. However if the packing height exceeds 3 meters we recommend using an intermediate liquid re-distributor as well for even flow.
Yuanqiao wire mesh structured packing products list (normal):
| Type | Specific Surface | Bulk Density | Void Ratio | obliquity | ΔP | Liquid spray density | Liquid holdup | Theo. Plate | HETP | F factor | Application② |
| (m2/m3) | (kg/m3) | (%) | Angle | (Pa/plate) | (m3/m2*h) | % | (piece/m) | mm | (m/s)*(kg/m3)0.5 | |
| 250(AX) | 250 | 45① | 98.5 | 30 | 10-40 | 0.2-12 | 2 | 2.5-3 | 100 | 2.5-3.5 | Precision distillation with few theoretical series |
| 500(BX) | 500 | 95① | 96.9 | 30 | 50 | 0.2-12 | 4.2 | 4-5 | 200 | 2.0-2.4 | Vacuum Distillation of Thermosensitive and Difficult Separation Systems |
| 700(CY) | 700 | 130① | 95.6 | 45 | 67 | 0.2-12 | 6 | 8-10 | 333-400 | 1.5-2.0 | Isotopic mixture, isomeric mixture separation |
①The data are based on 0.12mm wire, stainless steel material. Applicable temperature (-200—400)℃. 0.15mm and 0.17mm wire are also available.
②Metal wire mesh corrugated packing is suitable for clean gas-liquid system without solid particles or suspended solids or not easy to self-assemble.
Benifits of Yuanqiao structured packing:
Higher capacity
Reduced liquid hold-up
Excellent liquid spreading characteristics
Lower pressure drop through the column
Higher efficiency in the same tower height
Projects applying wire mesh structured packing
- Distillation of Tert-Butylphenol with 700Y corrugated wire mesh packing.
- The cyclohexanone separation unit is revamped with metal wire mesh corrugated packing instead of Intalox saddle ring packing.
- Separation of ethyl acetate, purification of chloroform, anhydrous ethanol, etc.
- Isotope Separation with Phosphorus Bronze or Brass Wire Mesh packing column.
- Vacuum distillation column for separation of chlorotoluene isomers with 700Y wire mesh packing.
- Isopropanol Extractive Distillation Column and Ethylene Glycol Drying Column.
