SS316L Structured Packing Corrugated Metal Sheet Corrugation
Surface Treatment
Materials of Construction
The most common material used for structured column packing is SS 304L and SS 316L. However manufactures this solely based on our customers’
requirements and can also be made from other materials based on
special requests.
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.
structured packing uses the industry standard corrugated perforated and embossed
sheet metal design to provide efficient vapour-liquid contact. The
style of the embossed surface has been optimised to provide maximum
wetability and numerous perforations enhance cross mixing of the
process fluids. Type Y has a crimp angle of 45° and type X 30°. Suitable liquid irrigation range from below 0.5 up to 200
m3/m2.hr.
structured packing products list (part):
| Types of packing | Specific Surface | Void Fraction | Application |
| Wire gauze 500X | 500 | 98.8% | Fine chemicals head pressure < 300 mbar |
| Wire gauze 700Y | 700 | 98.4% |
| Metal sheet 125X/Y | 125 | 99.5% | High liquid and gas load |
| Metal sheet 250X/Y | 250 | 98.8% | Standard |
| Metal sheet 350X/Y | 350 | 98.3% | Higher NTSM at lower capacity |
| Metal sheet 500X/Y | 500 | 97.7% | High NTSM |
| Metal sheet 700X/Y | 700 | 97.0% |
Benifits of structured packing:
Lower pressure drop through the column
■Lower botoms temperature for heat sensitive systems
■Higher relative volatility for difficult separations
■Lower energy consumption
■Reduced foaming tendency
Higher efficiency in the same tower height
■Large number of theoretical stages required
■Reduced reflux requirement
Higher capacity
■Reduced vessel diameter
■Increased operating rates
Excellent liquid spreading characteristics
■Improved efficiency
■Offshore applications subject to permanent tilt and motion
Reduced liquid hold-up
■Smaller amounts of polymer inhibitor
Surface Treatments of Sheet Metal Structured Packing
It is important to achieve good contact between the liquid and
vapor phases. A packing that spreads the liquid evenly in a thin
film will exhibit beter performance. Mixing the film creates
turbulence that enhances the mass transfer.
Modifications to the texturing of the packing surface improve the
liquid spreading which, in turn, leads to enhanced packing
efficiency.
All types of structured packings are available in a variety of
corrugation sizes. This provides the versatility needed to optimize
a packing configuration to best meet the efficiency, capacity, and
pressure drop requirements for a particular application.
Welcome your inquiry about structured packing any time!
