Introduction of fiber demister :
The fiber demister also known as a fiber mist eliminator or fiber bed filter, is a device used to remove fine liquid droplets or mist from a gas stream. It plays a crucial role in separating entrained liquids from process gases in a variety of industries.
The fiber demister consists of two concentric screens or parallel flat screens filled with compressed fiber pads.
Fiber demister are individually designed and manufactured with enclosures made of a variety of alloys, thermoformed plastics or fiberglass reinforced plastics.
| Type | Effect | Process parameter | Remark |
Pressure loss
(mmH2O) | Gas velocity range
(m/s) |
| TGW15 | 100% > 1μm | 37~225(dry)
75~450(wet) | 0.05~0.25 | High-speed |
| 98% 0.5 - 1μm |
| B14 | 100% > 3μm | 78~335 | 0.1~0.35 | High-speed |
| 98 - 99% < 3μm |
| B12 | 100% > 3μm | 40~260 | 0.1~0.6 | High-speed |
| 95% 1 - 3μm |
| 80% 0.5 – 1μm |
| G35 | 100% > 3μm | 30~470 | 0~2.5 | High-speed |
| 85 – 90 % 0.5 - 3μm |
| 60 – 70% 0.5 – 1μm |
| G25 | 100% > 3μm | 12~400 | 0~2.5 | High-speed |
The specific design and performance requirements of the fiber demister will depend on the industry, process conditions, and the characteristics of the liquid droplets being removed. Careful selection and integration of the fiber demister is crucial to ensure efficient and reliable operation in these diverse applications.
Key applications of Fiber demisters:
Power Generation:
In power plants, fiber demisters are used to remove water droplets from the exhaust gas streams, preventing corrosion and erosion of downstream equipment.
They are commonly found in flue gas desulfurization (FGD) systems and in turbine inlet air filtration.
Chemical and Petrochemical Processing:
Fiber demisters play a critical role in separating valuable process liquids from waste gas streams in refineries, chemical plants, and petrochemical facilities.
Features of fiber demister :
Reduce or eliminate visible chimney plume.
Design capacity can be adjusted without limitation.
Ensure that the pressure drop is less than 40 mm (1.5 ") W.G.
Interchangeable with existing fiber pad equipment.
Capture submicron particles with a diameter of 0.1 micron or less.
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