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Demister In Distillation Column
SPT mesh pad type demister remove droplets by impingement on the wire surface. The liquid collected on the filaments is then able to drain from the pad under gravity. They have a limited range of useful operation in which they provide almost complete removal of droplets down to about 3-5 microns. Turndown range of the vapour rate is around 3:1. At excessively high vapour velocities, the liquid droplets that impinge on the wire surface are sheared off by the vapour and re-entrained before they are able to drain. At very low vapour velocities, all but the larger droplets are able to follow the vapour path through the mesh and thus avoid impingement; however the inherent design of the separator vessel means that in most applications an effective turndown performance of 10:1 or better can be achieved.
Standard Mesh Pad Type
At Saiptech, Mist eliminators can be manufactured in virtually any size and are available in a wide range of materials, with over 14 distinct styles designed and fabricated to meet specific application needs.
|
Type |
Material |
Wire Dia |
Pad Density |
Surface Area |
Free Volume |
Application |
|
SMD1 |
Metal |
0.28 mm |
80 kg/m3 |
145 m2/m3 |
99% |
Moderate fouling, minimum pressure drop |
|
SMD2 |
Metal |
0.28 mm |
110 kg/m3 |
200 m2/m3 |
98.60% |
Light fouling, fine entrainment |
|
SMD3 |
Metal |
0.28 mm |
144 kg/m3 |
258 m2/m3 |
98.20% |
Standard general-purpose media |
|
SMD4 |
Metal |
0.15 mm |
144 kg/m3 |
482 m2/m3 |
98.20% |
High efficiency for fine entrainment |
|
SMD5 |
Metal |
0.28 mm |
168 kg/m3 |
310 m2/m3 |
97.90% |
General purpose |
|
SMD6 |
Metal |
0.28 mm |
192 kg/m3 |
350 m2/m3 |
97.60% |
Optimum efficiency & pressure drop |
|
SMD7 |
Metal |
0.15 mm |
192 kg/m3 |
643 m2/m3 |
97.50% |
Very high efficiency in clean service |
|
SMDP1 |
Polypropylene |
0.3 mm |
75 kg/m3 |
820 m2/m3 |
93% |
Acid mists |
|
SMDP2 |
Polypropylene |
0.3 mm |
50 kg/m3 |
750 m2/m3 |
95.30% |
Chemical scrubber towers |
|
SMDP3 |
Polypropylene |
0.3 mm |
33 kg/m3 |
490 m2/m3 |
96.90% |
Low pressure drop scrubbers |
|
SMDT |
Teflon |
0.3 mm |
85 kg/m3 |
220 m2/m3 |
95% |
Very corrosive services |
|
SMD1X |
Metal/PP Mix |
/ |
200 kg/m3 |
625 m2/m3 |
95.60% |
Mist removal of polar / non-polar mixtures |
|
SMDF |
Fiber Glass |
/ |
135 kg/m3 |
300 m2/m3 |
95% |
Coalescer fine mists |
|
SMD2X |
Metal/ Fiber Glass Mix |
/ |
305 kg/m3 |
340 m2/m3 |
94% |
Fine mist conditions |
* others type are also available for tailor made as per request
