Coalescent (fiber bed) mist eliminators
Fine aerosol grows into visible drops inside a fiber bed
Schematic diagram, not an installation drawing.
A coalescing element is a fiber bed on which fine aerosol (mist) grows into drops large enough to be removed by gravity or a second stage. The classic applications are downstream of spray assemblies and in wet gas scrubbing, where the droplet fraction is fine.
Typical applications
- a mist polishing stage after packed-bed scrubbers;
- the first stage in hybrid assemblies (coalescing + vanes).
What to check before selecting
- Chemical compatibility of the fiber with the medium — per the compatibility tables.
- Fiber carryover — a data sheet parameter, not an “obvious property”.
- ΔP of the clean element and the replacement schedule — per the data sheet.
What the manufacturer must state
This table is not a spec sheet: without the specific model datasheet, values stay “no data”. No typical numbers are ever substituted.
| Parameter | Value | Status |
|---|---|---|
| Fractional droplet efficiency | — | per the model data sheet |
| Initial ΔP of the clean element | — | per the model data sheet |
| Fiber carryover | — | per the model data sheet |
| Element service life | — | depends on the duty |
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