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Ceramic Catalyst Bag Filter

홈 Business Dust Collection System Ceramic Catalyst bag Filter

Comparison with conventional process

  • SDR + ESP +SCR process
  • Ceramic Catalyst Bag filter process
  • SDR + Bag Filter + GGH + Re-heater + SCR process

Ceramic Catalyst Bag filter process’s characteristics

  • Operation temperature is high.
    • SCR : 350 ℃ ± 20℃ ( Nor 350℃ )
    • Ceramic Bag : 200℃ ~ 900℃
  • In Ceramic Catalyst Bag filter, temperature drop is low as 30℃. So, before and after process, heat recovery system like waste heat boiler can be installed.
  • Because gas reheating like SCR is not necessary, cost for energy loss can be minimized.
  • High efficiency of treating gaseous pollutant
  • High efficiency of dust collection ( Outlet concentration is about 5mg/Nm3 )
  • Efficiency of treating Dioxin is high. By operating at high temperature, additional Dioxin doesn’t occur.
  • Electricity cost and chemical cost are less. So, operation cost is cheaper than conventional process.
  • Simple process. Easy operation and management. ( same with general operation method of bag filter )
  • Compact space for installation.

Mechanism of Ceramic Catalyst Bag filter

  • Dust contained in exhaust gas are removed on surface of Bag Filter.
  • Pre-coat on surface of bag filter with Lime or Sodium Bicarbonate to remove SOx.
  • By passing reducing agent like NH3 or Urea through SCR catalyst layer (20mm thickness) on bag filter fiber, NOx is decomposed to N2 and H20 and then removed.
  • This is a well blended technology of ceramic bag for high temperature and SCR catalyst and achieves best efficiency of de-SOx and de-NOx at 350 ℃

Application fields of Ceramic Catalyst Bag filter process

  • Glass furnace
  • Incinerator
  • Coal-firing boiler
  • Steel manufacture
  • Cement
  • Power Plant