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Flue Gas Treatment

Flue Gas Desulfurization and Denitrification: Process Routes Explained

Wet, semi-dry and dry FGD compared with SCR and SNCR denitrification, including temperature window, reagent use, by-products and retrofit constraints.

2026-05-309 min readGANGPU engineering team
Flue gas desulfurization tower and denitrification reactor at an industrial plant

Wet, semi-dry and dry FGD compared with SCR and SNCR denitrification, including temperature window, reagent use, by-products and retrofit constraints.

What this article covers

  • Selection method for flue gas treatment equipment under real plant conditions
  • The parameters that decide sizing: gas volume, temperature, dust or pollutant load and the outlet limit
  • Material and media choices that affect service life and running cost
  • Installation, commissioning and maintenance points that are often missed in quotation stage

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Send air volume, dust or gas composition, temperature, required outlet value and available space. Our engineers return the sizing calculation, a configuration proposal and a budget quotation. Emission and energy results always depend on your actual operating condition and the local standard in force.

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