Fiber bed sulfuric acid mist eliminator for acid plant

Fiber Bed Mist Eliminator Supplier for Indian Chemical Plants

India’s chemical manufacturing sector demands high-performance fiber bed mist eliminators capable of handling corrosive process gases and meeting CPCB emission standards reliably. For decades, Indian plant operators have depended on imported fiber bed systems from European and American suppliers — at high cost, long lead times, and limited local support.

Filtearth offers a direct alternative: custom-engineered fiber bed mist eliminators manufactured in ISO 9001 certified facilities, achieving 99.96% mist removal efficiency at approximately 70% of the cost of major imported brands — with a 30-day production cycle versus the 60 to 90 days typical of overseas suppliers.


Indian procurement teams evaluating fiber bed mist eliminator suppliers consistently compare on four dimensions. Here is how Filtearth compares against established European and American brands:

CriteriaMajor Imported BrandsFiltearth
Mist removal efficiency99.96%99.96%
Droplet capture range0.1–3 μm0.1–3 μm
Price (equivalent specification)Baseline (100%)~70% of import cost
Production lead time60–90 days30 days
Shipping to Indian portsSea freight from Europe/USASea freight from China — shorter transit
Material certificatesStandardStandard — full traceability
Technical supportRemote / agent-basedDirect engineering team access
Retrofit compatibilityOEM vessel onlyCustom-matched to any existing vessel
Element diameter rangeVaries by supplier200–1,500 mm

Same performance. Shorter lead time. Lower cost. Direct engineering support.


India is home to one of the world’s largest sulfuric acid production industries, a rapidly growing chlor-alkali sector, and a significant phosphoric acid and fertilizer manufacturing base. These processes generate submicron acid mist that conventional mesh pads and cyclonic separators cannot handle effectively.

Standard wire mesh demisters capture droplets above 5–10 microns by inertial impaction. The mist generated in sulfuric acid absorption towers and chlor-alkali electrolysis cells is predominantly below 3 microns — a size range where wire mesh efficiency drops sharply, often below 50%, regardless of installation quality.

Fiber bed mist eliminators capture across the full submicron range through three simultaneous mechanisms: inertial impaction, direct interception, and Brownian diffusion. The result is 99.96% removal efficiency with outlet acid mist concentrations consistently below 5 mg/Nm³ — meeting CPCB standards for new and upgraded installations.


Filtearth fiber bed mist eliminators are currently operating in industrial installations across multiple countries. The following references are relevant to Indian chemical plant procurement teams:

Multiple fiber bed mist eliminator units installed in sulfuric acid absorption tower service. PTFE fiber construction for concentrated H₂SO₄ mist. Units have operated continuously since installation with stable pressure drop and mist removal performance meeting emission requirements.

Application: H₂SO₄ absorption tower | Fiber: PTFE | Shell: FRP

Fiber bed mist eliminator units supplied for phosphoric acid mist control in a wet process phosphate fertilizer production facility. Units selected for combined H₃PO₄ and HF resistance. Delivered within 30-day production cycle to meet project commissioning schedule.

Application: Phosphoric acid concentrator | Fiber: PTFE | Shell: FRP | Market: Fertilizer

Custom-engineered 25 mm fiber bed elements designed to replace standard 50 mm units in a high-velocity drying tower. Operating pressure drop reduced from ~1,800 Pa to ~1,200 Pa — 250 Pa below the system limit — while maintaining 99.96% mist removal efficiency. 7 units installed, stable operation confirmed.

Application: H₂SO₄ drying tower retrofit | Fiber: Borosilicate glass + PTFE composite | Challenge: High gas velocity, pressure drop constraint


Many Indian chemical plants currently operate fiber bed mist eliminators from major international suppliers. When elements reach end of service life, the standard approach has been to reorder from the original supplier — at full import price and 60 to 90 day lead time.

Filtearth provides direct dimensional and performance-matched fiber bed replacement elements for existing installations. Plant operators can upgrade or replace worn elements without modifying existing vessel structures — no civil work, no new vessel procurement, no extended shutdown.

Element diameter range: 200–1,500 mm Custom fiber grades, packing densities, and shell materials matched to your existing system specifications.

“For Indian plants currently running imported fiber bed systems, the replacement economics are straightforward: equivalent performance at approximately 70% of the original import cost, delivered in 30 days.”


Sulfuric acid plants — whether operating on contact process or double absorption — generate concentrated H₂SO₄ mist from drying towers and absorption towers. Our PTFE and borosilicate glass fiber bed elements are engineered for continuous duty in high-acid-concentration environments, capturing fine mist that escapes standard demisters.

ParameterSpecification
Fiber materialPTFE or borosilicate glass
Droplet capture range0.1–3 μm
Collection efficiency99.96%
Shell materialFRP, PP, or SS316L
Operating temperatureUp to 120°C
Outlet mist concentration< 5 mg/Nm³

Chlor-alkali plants present a dual-corrosion challenge: chlorine gas on one side, caustic mist on the other. Our fiber bed demisters for chlor-alkali service handle both environments simultaneously — protecting compressors, dryers, and downstream equipment from mist contamination.

ParameterSpecification
Fiber materialPTFE or acid/alkali-resistant glass
ApplicationElectrolysis off-gas, evaporator vent, drying tower outlet
Shell materialPP, FRP, or titanium
Operation24/7 continuous duty rated
Collection efficiency99.96%

Phosphoric acid production generates a challenging combination of H₃PO₄ mist, hydrofluoric acid vapor, and high solids loading. Our phosphoric acid mist eliminators use coarser fiber grades to handle partial solids content while maintaining high mist removal efficiency.

ParameterSpecification
Fiber materialPTFE or acid-resistant glass
Special considerationHF resistance
Shell materialFRP or PP
ApplicationReactor vent, concentrator off-gas, evaporator exhaust
Collection efficiency99.96%

Submit your gas flow rate, temperature, pressure, inlet mist loading, and space constraints — or existing vessel dimensions for retrofit applications. We provide a process data sheet template on request and respond within 24 hours.

Our engineers select fiber grade, packing density, bed thickness, and shell material based on your specific process conditions. For retrofit projects, we design elements to fit existing vessels without structural modification wherever possible.

Every unit is manufactured in our ISO 9001 certified facility in Henan, China. Full quality documentation provided as standard: material certificates, dimensional inspection reports, pressure test records, and performance verification. Standard production lead time: 30 days for orders up to 10 units.

We work with established freight forwarders serving Nhava Sheva (Mumbai), Mundra, and Chennai. Complete shipping documentation provided for customs clearance: commercial invoice, packing list, certificate of origin, and material certificates.


  • ISO 9001 Certified Quality Management System
  • SGS Certified
  • Full material traceability documentation — standard on every order
  • ANSI, DIN, and JIS connection standards available

Can Filtearth replace existing imported fiber bed elements in Indian plants? Yes. Filtearth designs fiber bed replacement elements matched to existing vessel dimensions and performance specifications. Plants currently operating systems from major international suppliers can replace worn elements with Filtearth units at approximately 70% of the original import cost, delivered in 30 days — without vessel modification.

What efficiency do Filtearth units achieve? Filtearth fiber bed mist eliminators achieve 99.96% removal efficiency for submicron liquid droplets in the 0.1 to 3 micron range. Outlet acid mist concentrations are consistently below 5 mg/Nm³ under design operating conditions.

Do Filtearth units meet CPCB emission standards for acid mist? Yes. Current CPCB standards for sulfuric acid plants require acid mist emissions below 50 mg/Nm³ for existing facilities and tighter limits for new installations. Our fiber bed units consistently achieve outlet concentrations below 5 mg/Nm³ — well within all applicable CPCB thresholds.

What element sizes are available? Filtearth manufactures fiber bed elements from 200 mm to 1,500 mm internal diameter. Custom lengths and multi-element configurations are available for large-diameter vessels. Provide your vessel internal dimensions and we will confirm compatibility.

What is the minimum order quantity? There is no minimum order quantity. We accept single-unit orders for replacement and evaluation requirements. Lead time for single units is approximately 30 days from order confirmation.

How does the 30-day lead time compare to imported brands? Major European and American fiber bed suppliers typically quote 60 to 90 days production lead time for custom elements, plus international shipping transit time. Filtearth’s 30-day production cycle, combined with shorter sea freight transit from China to Indian ports, reduces total delivery time significantly for Indian customers.


If you are evaluating fiber bed mist eliminators for a sulfuric acid, chlor-alkali, or phosphoric acid application in India — or looking to replace existing imported elements — Filtearth is ready to provide a detailed technical proposal and commercial quotation within 24 hours.

To receive a quotation, please provide:

  • Process gas type and composition
  • Operating temperature and pressure
  • Gas flow rate (m³/h or Nm³/h)
  • Existing vessel dimensions (for retrofit applications)
  • Inlet mist loading (if known)

Contact Henry Wang directly: Email: [email protected] WhatsApp: +86 159 365 10880

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