BX Stainless Steel Metal Structured Packing Fine Chemical Tower
Internal
Metal Wire Mesh Corrugated Packing consists of vertically arranged corrugated wire mesh sheets, which
are usually 100 mm, 150 mm and 200 mm in height. Other heights can
be customized. The direction of the ripple is opposite to that of
the adjacent ones, and the inclination angle against the tower axis
is 30 or 45 degrees. The diameter of packing tray is several
millimeters smaller than tower inner diameter. The packing tray
fills the section of tower precisely. The outer hoop of each
packing tray can be flanged to prevent wall flow, and the two
adjacent trays rotate 90 degrees to install. The main materials of
corrugated wire mesh packing are stainless steel, copper,
aluminium, low carbon steel, nickel, titanium, etc.
wire gauze structured packing is the preferred packing in distillation service for deep vacuum
and low liquid rate applications. The characteristic of lowest
pressure drop per theoretical stage makes wire gauze packing the
preferred device for processing specialty chemicals,
pharmaceuticals and temperature-sensitive materials.
Wire gauze packing is generally used in small to medium diameter
columns to achieve the maximum number of theoretical stages in the
minimum column height. Because of the capillary effect, the wire
mesh material provides an extremely wettable surface resulting in
excellent mass transfer efficiency particularly at very low liquid
rates.
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.
Projects applying wire mesh structured packing
- Separation of pinene with metal mesh packing instead of bubble cap
tray.
- Separation of dipentene isomers with 700Y corrugated wire mesh
packing instead of bubble cap tray.
- Hydrogen fluoride, methanol/water separation, uses 700 Y corrugated
wire mesh packing.
- Separation of Methanol and Ethanol
- Isobutanol is refined with 700Y corrugated wire mesh packing.
- Separation of ethylenediamine/diaminocyclohexane with corrugated
metal wire mesh packing in vacuum distillation tower.
- Extraction of isopropanol.
