Combined Systems

Increasing gas capacities and higher performance requirements in mass transfer equipment are challenging the capabilities of conventional mist eliminator equipment.

To solve this, Enhanced offers combined systems which optimise the benefits of individual types of equipment and improve overall performance.

For example, mesh mist eliminators can be used in combination with vane packs to produce very high separation efficiencies at high gas loadings. By using the mesh mist eliminator as a pre-conditioner for the vane pack, it is operated above its normal re-entrainment or flooding point and consequently liquid is stripped away from the downstream surface.
The liquid dispersion re-entrained from the mesh mist eliminator has a larger mean diameter and is suitable for subsequent separation by secondary, high capacity equipment such as a vane pack.

By analysis of the inlet fluid conditions, Enhanced Separation Technologies can design optimised mesh structures to provide the best possible outlet conditions for the downstream separator.

Secondary benefits of combination systems include:

• The ability to design the equipment to provide very high turndown capabilities

• At low gas velocities, where vane packs tend to be ineffective, the mesh pre-conditioners behave as conventional mist eliminators

• The same principle can be used to improve both capture efficiency and turndown ratio in axial, cyclonic separators

K-value Compalrisons (ft/s)
Type of Mist Eliminator	Typical K- value
Mesh	0.16 to 0.40
Simple vane	0.40 to 0.65
Vane with drainage channels	0.65 to 1.2