Editorial Technical Reference

Mist Eliminator

This page explains how Mist Eliminator is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A device that removes liquid droplets or mist from gas streams by impaction, interception, and diffusion.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Mist Eliminator

Definition
A mist eliminator is a critical component within a quench tower that separates liquid droplets from the gas stream after the quenching process. It prevents liquid carryover into downstream equipment, protects compressors and heat exchangers, reduces emissions, and improves process efficiency by ensuring only clean gas proceeds through the system. The device operates on the principles of impaction, interception, and diffusion, where droplets collide with and adhere to the surfaces of the eliminator elements, coalesce into larger drops, and drain back into the quench tower sump. Available materials include polypropylene, stainless steel, and fiberglass, with material grades such as SS304 and SS316L for corrosive environments. Key parameters to verify for a specific application include operating temperature (-40–85°C), gas flow rate (1000–50000 m³/h), separation efficiency (99.5–99.9% for droplets >10 μm), pressure drop (0.5–2.5 kPa), mist removal capacity (50–500 mg/m³), vessel diameter (300–3000 mm), weight (50–2000 kg), and flange rating (PN10–PN40, DIN EN 1092-1). These values are reference ranges and must be confirmed with the manufacturer for the actual model. The mist eliminator is a component, not a standalone system, and its performance depends on proper integration with the quench tower and downstream equipment. Regular inspection and maintenance are necessary to prevent fouling, corrosion, and mechanical damage, which can degrade separation efficiency and increase pressure drop. Always verify model-specific specifications and compliance with applicable standards through the legal manufacturer or supplier.
Working Principle
As the gas stream containing entrained liquid droplets passes through the mist eliminator, the droplets impact on the surfaces of the eliminator elements (such as mesh pads, vane packs, or fiber beds). The droplets coalesce into larger drops that drain by gravity back into the quench tower sump, while the cleaned gas continues upward. The efficiency of this process depends on gas velocity, droplet size, and the geometry of the eliminator elements. Proper design and operation ensure that the pressure drop remains within acceptable limits and that the separation efficiency meets process requirements.
Common Materials
Polypropylene, Stainless Steel, Fiberglass
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Temperature-40–85 °CAbove 85°C seals degrade
Gas Flow Rate1000–50000 m³/hHigher flow requires larger unit
Separation Efficiency99.5–99.9 %For droplets > 10 μm
Pressure Drop0.5–2.5 kPaHigher drop increases energy cost
Mist Removal Capacity50–500 mg/m³Residual liquid content after separation
Vessel Diameter300–3000 mmMatches pipe size
Material GradeSS304/SS316LSS316L for corrosive gasesASTM A240
Weight50–2000 kgDepends on size and material
Flange RatingPN10–PN40Matches piping classDIN EN 1092-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Mesh Pad Part
    Primary droplet capture surface made of knitted or woven filaments
    Material: Polypropylene or Stainless Steel
  • Support Grid Part
    Structural framework that holds the mesh pad in place
    Material: Stainless Steel
  • Drainage System
    Channels collected liquid back to quench tower sump
    Material: Stainless Steel
  • Vane Pack Optional
    Turns the gas through a zig-zag so droplets hit the plates instead of passing through.
  • Fiber Bed Optional
    Catches the fine mist a mesh pad would let through.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (standard), up to 100 bar with reinforced designs
flow rate: 0.5 to 50 m/s gas velocity range
temperature: -40°C to 200°C (standard), up to 400°C with special materials
slurry concentration: Up to 5% liquid loading by volume
Media Compatibility
✓ Natural gas processing with amine solutions ✓ Chemical reactor vent gas streams ✓ Compressed air systems with oil aerosols
Unsuitable: High-viscosity fluids (>100 cP) or sticky particulate-laden gases
Sizing Data Required
  • Gas flow rate (Nm³/h or ACFM)
  • Droplet size distribution (microns)
  • Required separation efficiency (%)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fouling and Plugging
Cause: Accumulation of solids, salts, or viscous materials in the mesh or packing, often due to inadequate upstream filtration, process upsets, or condensation of heavier hydrocarbons.
Structural Degradation (Corrosion/Erosion)
Cause: Chemical attack from corrosive process streams (e.g., acidic gases) or physical erosion from high-velocity liquid droplets or entrained particulates, exacerbated by material incompatibility or excessive gas velocity.
Maintenance Indicators
  • Significant increase in pressure drop across the mist eliminator (measured via differential pressure gauge), indicating flow restriction.
  • Visible liquid carryover or 'spray' from the vessel outlet, or audible 'sloshing' or gurgling sounds downstream, signaling failure to separate entrained droplets.
Engineering Tips
  • Implement and maintain robust upstream filtration (e.g., coalescers, strainers) to reduce particulate loading and fouling potential on the mist eliminator element.
  • Specify corrosion-resistant materials (e.g., 316L stainless steel, alloys like Hastelloy, or plastic coatings) matched to the process chemistry, and ensure gas velocities are kept within the manufacturer's design range (typically 2–15 ft/s for mesh pads) to minimize erosion and re-entrainment.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 14644-1:2015 Cleanrooms and associated controlled environments ANSI/ASME B31.3 Process Piping DIN EN 1092-1 Flanges and their joints

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.05mm
  • Flatness of mounting surfaces: 0.2mm
Quality Inspection
  • Pressure drop test per design specifications
  • Visual inspection for weld integrity and surface finish

Manufacturers of Mist Eliminator

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Filson Filter
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is the primary function of a mist eliminator in a quench tower?

It removes liquid droplets from the gas stream after quenching, preventing carryover into downstream equipment and protecting compressors and heat exchangers.

What materials are commonly used for mist eliminators?

Polypropylene, stainless steel, and fiberglass are typical. For corrosive gases, SS316L is specified, but confirm the exact grade with the manufacturer.

How do I select the right mist eliminator size?

Consider the gas flow rate (1000–50000 m³/h), vessel diameter (300–3000 mm), and allowable pressure drop (0.5–2.5 kPa). These are reference ranges; consult the manufacturer for sizing.

What maintenance is required for a mist eliminator?

Regular inspection for fouling, corrosion, and mechanical damage is needed. Clean or replace elements as necessary to maintain separation efficiency and avoid excessive pressure drop.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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