Eliminate Submicron Acid Mist from Chemical Process Gas

Customised fibre-bed mist eliminators suitable for sulphuric acid, chlor-alkali and fertiliser plants, as well as metal smelting.

Is Your Plant Facing These Problems?

1.High Acid Mist Emission?
2.Downstream Equipment Corrosion?
3.Wire Mesh Demister Failure?
4.Product Loss?
5.Are you worried about sizing and alternatives?

Universal Replacement Elements & Custom Engineering

Filtearth offers replacement fibre-bed mist eliminators for existing vessel installations that are matched in terms of size and performance. Plant operators can seamlessly improve acid mist capture performance or replace failed mist eliminators without having to modify the flange configuration or pipework layout of existing vessels.

fiber bed mist eliminator efficiency table

<1μm,99.96%
capture rate

0.1–3μm
Droplet Size

-20°C~260°C
Temperature range

500– 2500 Pa
initial pressure drop

——CORE FACTS——

Numbers Speak For Themselves

Customer Satisfaction

Years of Engineering Experience

Completed Projects

Strong technical team

Why Choose a Fiber Bed Mist Eliminator?


Conventional wire mesh demisters capture droplets larger than 3–5μm but fail against the submicron acid mist (0.1–3μm) generated in sulfuric acid absorption towers, chlor-alkali electrolysis cells, and polysilicon chemical vapor deposition reactors.
Fibre-bed mist eliminators solve this problem by directing the gas to flow radially through a packing bed composed of fine polytetrafluoroethylene (PTFE) or specialised glass fibres. Three mechanisms of action are at work simultaneously:
-Inertial Impaction — captures larger droplets (>1μm)
-Direct Interception — captures medium droplets (0.3–1μm)
-Brownian Diffusion — captures submicron particles (<0.3μm) The result: >99.96% collection efficiency, even for the most challenging
corrosive mist streams. Captured liquid coalesces on the fibers and
drains by gravity — no moving parts, no electricity, no consumables.

fiber bed mist eliminator manufacturer Filtearth

Industries We Serve

Every fiber bed mist eliminator we build is custom-engineered
for the specific gas composition, temperature, and flow conditions
of your process.

Sulfuric Acid Mist Eliminator

⚗️
Sulfuric Acid Plants

Removes H₂SO₄ mist from drying towers and absorption towers. PTFE fiber construction withstands concentrated sulfuric acid at temperatures up to 120°C. Meets emission standards <5 mg/Nm³.

✅Highly corrosive — PTFE/glass fiber construction
✅High concentration acid mist <3μm
✅High gas velocity tolerance

Chlor Alkali Mist Eliminator

🧪
Chlor-Alkali Industryts

Captures chlorine and caustic mist from electrolysis cells and evaporators. Resistant to wet chlorine gas and sodium hydroxide environments. Protects downstream compressors and heat exchangers.

✅Cl₂ & NaOH dual-environment resistance
✅Electrolytic cell off-gas handling
✅Continuous operation requirements

Polysilicon Mist Eliminator

💎
Polysilicon Manufacturing

Removes SiCl₄ and HCl mist from chemical vapor deposition and hydrochlorination reactors. High-purity PTFE fiber prevents contamination of semiconductor-grade polysilicon product.

✅Ultra-high purity requirements
✅Mixed silicon chloride compounds
✅High temperature gas streams

Semiconductor Mist Eliminator

🔬
Semiconductor Industry

Ultra-clean filtration for HF, HCl, and mixed acid mist in wet etching and cleaning processes. Zero particle shedding fiber construction meets semiconductor cleanroom standards.

✅Sub-0.3μm particle capture
✅HF, HCl, H₂SO₄ mixed vapors
✅Cleanroom-compatible materials

Phosphoric Acid Mist Eliminator

🌿
Phosphoric Acid Plants

Controls phosphoric acid mist generated by the reaction vessel and concentrator evaporator. Constructed with glass fiber and polytetrafluoroethylene (PTFE), it can handle H₃PO₄ concentrations up to 85%.

✅H₃PO₄ + HF combined attack
✅High solids content in gas stream
✅Environmental emission compliance

Petrochemical Mist Eliminator

🏭
Petrochemical Industry

Removes oil mist, amine mist, and hydrocarbon droplets from gas treatment, amine scrubbing, and sulfur recovery units. Custom fiber grades matched to hydrocarbon environments.

✅Hydrocarbon & amine service
✅High pressure vessel integration
✅API & ASME standards compliance

How We Work: From Your Process Data to Delivered Solution

From initial gas stream analysis to final global installation, Filtearth delivers precision-engineered fiber bed mist eliminators tailored to your exact process parameters. Our streamlined 4-step engineering workflow ensures maximum collection efficiency and zero operational downtime.

🔬The process of capturing mist particles using a fiber optic demister

Why Engineers and Plant Managers Choose Filtearth

🏆14+ Years of Focused Expertise

We manufacture only fiber bed mist eliminators — not a general filtration catalog. This focus means deeper expertise in corrosive mist applications than any general-purpose supplier.

📐 Truly Custom Engineering

Every unit is engineered from your actual process data. We calculate fiber diameter, packing density, bed thickness, and velocity — not copy a standard size.

🔰 ISO 9001 Certified Quality

Our manufacturing facility holds ISO 9001 certification. Every fiber bed element undergoes pressure testing, dimensional inspection, and documentation before shipment.

🧪Fiber Grade Selection Expertise

We stock and supply our own proprietary range of speciality glass fibres, carbon fibres and PTFE – we can match the right fibres to your specific chemical environment.

📊 Proven Performance Data

Our proprietary fiber bed technology achieves >99.96% mist removal efficiency — verified in operating plants across 6 continents and 20+ industries.

📞Responsive Technical Support

Direct access to the engineers who designed your unit. We respond to technical queries within 24 hours and provide lifetime operational support.

Rigorous Quality Control & Factory Pressure Testing

1.100% Factory Pressure Testing:Each finished element undergoes physical pressure drop verification prior to shipment.
2.Traceable Raw Materials:Mill test certificates supplied for all structural alloys, FRP resins, and fiber media.
3.ISO 9001 Certified Production:Fully compliant with international engineering audit standards.

⚙️Watch the manufacturing process of Filtearth Fiber Bed Mist Eliminators.

Filtearth manufacturing process: filament winding of fiber bed mist eliminator elements at our Henan facility.

📈Fiber Bed Mist Eliminator Manufacturing Process Factory Pressure Drop Test

In this video, we demonstrate the factory pressure drop test of our Fiber Bed Mist Eliminator to verify its airflow performance and ensure reliable operation in industrial applications.
Pressure drop is a critical parameter that affects:
✅System energy consumption
✅ Gas flow performance
✅Equipment operating efficiency
✅ Long-term reliability
Filtearth is committed to providing reliable mist elimination solutions with consistent quality and engineering support.

Filtearth pressure drop detection test on fiber bed mist eliminator elements prior to delivery.

What Our Clients Say

🇸🇦 Saudi Arabia
⭐⭐⭐⭐⭐
Sulfuric Acid Plant

“Filtearth provided a customized fiber bed mist eliminator solution for our sulfuric acid process. The system improved acid mist control and helped protect downstream equipment under continuous operation.”
— Plant Engineering Team
Application: Sulfuric Acid / Tail Gas Treatment

🇦🇪 UAE
⭐⭐⭐⭐⭐
Chlor-Alkali Plant

“Filtearth’s fiber bed mist eliminator replaced traditional mesh demisters and delivered better fine mist removal performance, improving equipment protection and operational reliability.”
— Process Engineering Team
Application: Chemical Process Gas Treatment

🇮🇳 India
⭐⭐⭐⭐⭐
Fertilizer Manufacturer

“Filtearth supported our project with professional technical recommendations and customized design. The mist eliminator has been running reliably in our fertilizer production process.”
— Engineering Department
Application: Phosphoric Acid / Fertilizer Industry

Frequently Asked Questions About Fiber Bed Mist Eliminators

A fiber bed mist eliminator is an industrial gas-liquid separation device that removes submicron liquid droplets (0.1–3μm) from gas streams using a packed bed of fine PTFE or glass fibers. It achieves >99.96% mist removal efficiency through the combined mechanisms of inertial impaction, direct interception, and Brownian diffusion.

Gas enters the outer shell and flows radially inward through the cylindrical fiber bed element. As gas passes through the fine fiber matrix, liquid droplets collide with and stick to the fibers. The captured droplets coalesce into larger drops that drain by gravity to the sump at the bottom of the vessel. Clean gas exits through the central core.

Wire mesh demisters capture droplets larger than 3–5μm by inertial impaction and are suitable for relatively coarse mist. Fiber bed mist eliminators capture submicron droplets (0.1–3μm) with >99.96% efficiency — making them the preferred choice for sulfuric acid, chlor-alkali, and other fine corrosive mist applications where wire mesh is insufficient.

For sulfuric acid mist elimination, we use PTFE (polytetrafluoroethylene) fibers for maximum chemical resistance. Shell materials are typically PP (polypropylene) or FRP (fiber-reinforced plastic) for dilute acid, and alloy steel with PTFE lining for concentrated acid at elevated temperatures.

Sizing requires your actual process data: gas flow rate (Nm³/h), operating temperature (°C), operating pressure (kPa), gas composition, mist droplet size distribution, and required outlet emission concentration. Send us this data and our engineers will design the correct unit for your application — at no cost.

Is your factory failing to meet standards for acid mist capture and exhaust emissions? Is downstream equipment being corroded by acid mist, affecting product quality? Is the power consumption of the fans too high?

As a manufacturer specialising in fibre-bed mist eliminators for the capture of various types of chemical acid mists, Filtearth can provide bespoke engineering solutions within 24 hours.

Please contact our fibre-bed mist eliminator manufacturing team immediately, explaining the issue you are experiencing and providing your process data—gas flow rate, temperature and emission targets.