Business field

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High efficiency low temperature scr catalyst

Explanation

  • Coating of high-efficiency, lightweight, stable and heat-resistant SCR catalyst material using excellent heat-resistant fiber.
  • Boasting excellent SCR catalyst activity and dioxin removal performance with 3D pore structure and surface reaction of abundant technology

Distinction

  • High efficiency: Unique TDP pore structure, reaction channel and pore active surface area construction, high dispersion of active ingredients, SCR reaction secured, SO2 oxidation suppression
  • Light weight: Low density (volume density 30%) and light weight reduce usage (10%)
  • Stability: Unique formula system satisfies various working environment requirements at low/medium/high temperatures

SCR reaction principle

Explanation

  • Polluted air (NOx) moves to/is absorbed by the SCR catalyst and reacts with NOx first to be converted into N2 and H2O.
  • O2 in the atmosphere forms a catalytic cycle through O transferred through the internal reaction of the catalyst.

SCR pore structure and performance

samples BET Surface m©÷/g BJH Surface m©÷/g Pore Volume cm©ø/g Average pore/Å
¹úÁýÇü SCR 64.2 66.0 0.26 140
ÆÄÇü½Ä SCR 114.0 114.5 0.31 99

SCR catalyst volume density

  • The volume density is 35-43% lower compared to the corrugated and honeycomb catalysts.

SCR catalyst geometric surface area

The geometric surface area is +10% larger when comparing the corrugated and honeycomb catalysts.

Waveform SCR catalyst features

  • The specialized 3D pore structure forms large/medium/small pores and promotes rapid diffusion to maximize catalytic activity.
  • The high-efficiency catalyst is coated on the high-temperature fiber structure, which has a higher volume density and is more resistant to thermal shock than the honeycomb catalyst.
  • The corrugated structure, which provides a high active surface area with uniform pore walls, promotes the SCR reaction and suppresses SO2 oxidation.

Advantages

Catalytic performance

Gas turbine combustion gas denitrification efficiency

  • Inlet nox : 150~250 mg/Nm3
  • Outlet nox : ¡Â50 mg/Nm3
  • Exhaust temperature : 300~350¡É

Steel mill combustion gas denitrification efficiency

  • Inlet nox : 70~90 mg/Nm3
  • Outlet nox : ¡Â20 mg/Nm3
  • Exhaust temperature : 145~150¡É

Waste combustion gas denitrification efficiency

  • Inlet nox : 200~250 mg/Nm3
  • Outlet nox : ¡Â80 mg/Nm3
  • Exhaust temperature : 180~230¡É

Petrochemicals combustion gas denitrification efficiency

  • Inlet nox : 150~200 mg/Nm3
  • Outlet nox : ¡Â50 mg/Nm3
  • Exhaust temperature : 230~240¡É

Internal combustion engine combustion gas denitrification efficiency

  • Inlet nox : 500~3500 mg/Nm3
  • Outlet nox : ¡Â50 mg/Nm3
  • Exhaust temperature : 350~380¡É, 500~550¡É

Marine engine combustion gas denitrification efficiency

  • Inlet nox : 9.8 g/KW.h
  • Outlet nox : ¡Â1.5 g/KW.h
  • Exhaust temperature : 280~400¡É

Standard

±Ô°Ý ±â°øº® µÎ²²mm ±â°øÀ² % ±â°ø¹Ðµµ CPSI ±âÇϺñÇ¥¸éÀû m©÷/m©ø üÀû¹Ðµµ kg/m©ø
NDC-16 0.3 73% 179 1838 310
NDC-22 0.3 74% 123 1505 310
NDC-27 0.3 78% 65 1190 290
NDC-33 0.3 80% 46 992 280
NDC-42 0.4 80% 33 839 280
NDC-51 0.5 81% 22 745 270
NDC-56 0.5 82% 20 634 270

Application areas