Metalino Demisting
Demisting systems are used in processes where liquid droplets must be separated from gas flows. Examples:
  • Compressor knock-out drum demisting system (to protect the compressor against liquid entry);
  • Steam drum evaporate demisting system;
  • Gas scrubbing demisting system (to recover injected liquids);
  • Exhaust demisting system (to retrieve expensive and/or harmful liquids) etc.
Further applications:
Absorption columns - distillation columns - steam boilers - gas-and-air scrubbers - desalination plants - oil/mist separators - flame arrestors - effluent gas treatment etc. etc.

In any process where gas and liquid come into contact, the gas will entrain some liquid. This entrainment is generated by three mechanisms: mechanical action, condensation and chemical reaction.
image demisting

Reason for ordering Metalino Demisting systems

There are many good reasons for ordering our products, such as:
  1. High entrainment capacity
  2. Large free volume
  3. Low pressure drop
  4. No moving parts
  5. No maintenance
  6. Expert and flexible assistance
  7. Delivery as needed
  8. Warranty for 100% performance
  9. Cost economics
  10. to reduce loss of valuable chemicals
  11. to increase throughput capacity 13. to improve product purity
  12. To eliminate contamination
  13. to provide equipment protection
  14. to prevent air pollution
image demisting filter

Design Parameters

For general design, below equation has been used as a velocity guideline for many years:

V=K [(|ρL - ρV)/ ρV] ½

V = design m/sec
ρL = liquid density kg/m3
ρV = vapour density kg/m3
K = capacity factor m/sec

The recommended value of "K" varies depending on several system factors, including liquid viscosity, surface tension, entrainment loading, content of dissolved and suspended solids, and the operating pressure. Recommended "K" values are also highly dependent on the mesh structure.

K=0.107 m/sec have become the worldwide standard in the chemical process industries. Operating pressure drop is usually negligible <25mm water (1" WC). For high vacuum applications, high performance is routinely achieved with ∆P on the order of 2-3mm water (0.1" WC)