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Energy-Efficient Electrostatic Precipitation Technology

Korea Institute of Energy Research

Korea Institute of Energy Research (KIER)

Energy Efficiency

Energy-Efficient Electrostatic Precipitation Technology

This is an industrial electrostatic precipitator technology that reduces power consumption while minimizing the risk of vapor fires.

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CATEGORYEnergy Efficiency

Technology Overview

  • Low-Energy Electrostatic Precipitation Technology That Ensures Both Fire Safety and Energy Efficiency

  • A highly stable, intelligent dust collection solution capable of treating high-moisture, flammable exhaust gases

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Technology Configuration

  • Axial-Flow Cyclone

    • Selective removal of coarse particles and moisture droplets at the shear zone of the space-charging unit, which uses high voltage (removes 99.9% or more of particles 20 μm or larger)

    • Improves operational stability and prevents the occurrence and spread of fires by separating coarse particles and moisture droplets (flammable materials) from the spatial charging device (ignition source)

  • Spatial Charging Device

    • Technology that electrically ionizes exhaust gas to generate high-concentration gas ions and imparts static electricity to the material being treated

    • Structural stability technology ensures stable operation without spark discharge, even under conditions of excessively humid exhaust gas

  • Wet Electrostatic Precipitator

    • Utilizes the electro-wetting phenomenon to charge dielectric-coated electrodes with electrical energy

    • Generates and maintains a strong electric field using the stored electrical energy

    • The use of dielectric-coated electrodes maintains excellent dust collection performance while suppressing fires caused by spark or arc discharges

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Key Features of the Technology

  • Minimized Fire Risk: The combination of a co-current cyclone, spatial charging, and dielectric-coated electrodes eliminates the possibility of fire at the source

  • Easy Maintenance: Dust collection plates can be cleaned at any time during operation thanks to the dielectric-coated electrodes

  • High-Moisture Gas Treatment: Stable operation even in environments with high-moisture droplet inflow, such as downstream of a scrubber

  • Minimized Operating Costs: Utilizes the phenomenon of electrical wetting to minimize the energy required to generate an electric field

  • Maximized Treatment Efficiency: Treatment efficiency is maximized by forming and maintaining a high-intensity electric field

Experimental and Demonstration Data

  • Experimental Environment — Target Gas: Exhaust gas from a textile dyeing plant in Daegu / Treatment Capacity: Exhaust gas flow rate of 10 m³/min

  • Demonstration Experiment Configuration — Co-current cyclone + spatial charging device + wet electrostatic precipitator

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IP Status

Patent TitleApplication No.Status
A Wet Electrostatic Precipitator for Fire Prevention and Its Method of OperationPCT/KR2024/011304Application
A Wet Electrostatic Precipitator for Fire Prevention and Its Method of Operation10-2024-0038559Application
A Wet Electrostatic Precipitator Capable of Fire Prevention and a Method for Operating the Same10-2023-0148132Application
Wet Electrostatic Precipitator10-2160788Registration

Applications

Application FieldsApplicable Products
  • Air pollution control facilities for vapor emission sources (textile dyeing plants, painting facilities, tire factories, etc.)
  • Indoor and outdoor environmental facilities at food service establishments that emit large amounts of oil droplets, such as barbecue restaurants
  • Emission reduction equipment for machinery and other devices that generate large amounts of mist
  • Emission control equipment for various other industries where there is a risk of fire
  • Large-scale dust collection systems for industrial facilities (large dust collectors installed on exhaust gas discharge lines)
  • Outdoor dust collection systems connected to range hoods (e.g., at barbecue restaurants; smoke drawn in by hoods above grills is treated outdoors, such as on rooftops)

TRL Stage

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
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  8. 8
  9. 9
Basic research (1–3)Prototype (4–6)Commercialization (7–9)

TRL 6

- Pilot-scale demonstration at a dyeing plant - Operation control and monitoring of facilities equipped with IoT devices - Full-scale (processing capacity of 300 CMM) demonstration test facility currently under construction

# Electrostatic Precipitation# Fire Prevention# Energy Conservation
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