We offer our clients with a qualitative range of Stainless Steel Knitted Wire Mesh. These are made from crimped mesh of woven wire filaments, wherein every strand is a bunch of a large number of thin filaments (111 micron size). Our range is cylindrical in shape and is made in sizes, which snugly fits the interior of a distillation column. These are extensively used in laboratories, pilot plants and commercial installations for distillation, gas-absorption and liquid extraction.
Capillary action of the strands of knitmesh helps in spreading the liquid uniformly over the wire mesh. As a result, there is no build-up of the liquid anywhere in the voids of the packing. Vapour therefore has a free access to every surface inside the packing. The high seperation efficiency is thus obtained as the available surface of the packing is most effectively utilized.
Low value of HETP (Height Equivalent of Theoretical Plate). Typical values range from 100 to 150 mm. Low values of PDTS (Pressure Drop per Theoretical Stage). Typical values range from 0.04 to 0.05 mm of Hg, depending upon the vapour load.
High vapour handling capacity: Vapour handling capacity of knitmesh is comparable to 25 mm metal pall rings
No reduction in efficiency even at low liquid irrigation rates: Capillary action of knitmesh helps it to achieve uniform wetting of the entire package even at low liquid loadings. Packing can work without loss of efficiency at a liquid irrigation rate as low as 0.3 mh (0.5 GPM/FT)
Performance is independent of Packing Size : Unlike random packings, the properties of knitmesh are independent of packing size. Hence its performance characteristics such as HETP and PDTS are practically independent of packing diameter
No wall effect : Knitmesh draws liquid from the wall of the column into its interior by capillary action. No liquid redistributors are therefore necessary for a column packed with knitmesh
Reduction in packed volume: This is achieved due to low HETP of the packing
Reduction in the cost of column shell and supporting structure: This follows as a consequence of lower packed volume
Saving in energy cost : This is possible through reduction in the reflux ratio
Reduction in product loss through product degradation: Use of knit-mesh allows you to achieve re-boiler temperature for a specified column top pressure
Lower re-boiler temperature reduces the rate of degradation of heat sensitive materials present in the re-boiler, resulting in high product yield
High flexibility: Since knit-mesh shows high performance over a wide range of liquid loadings, it is most suitable for the situations which demand flexibility, that is batch operations, unsteady state operations and multipurpose distillation jobs
Increased in throughput capacity : The wide range of operating velocities allows increase in column capacity 2-2.5 higher than conventional packing