Reliable technology for SOx control

Dry flue gas desulfurization

Novel integrated desulfurization (NID)

The NID system is made up of a patented integrated hydrator/mixer, a J-duct reactor, and usually a fabric filter. Hydrated lime is used as a reagent to react with gaseous pollutants like SOx, HCl, and HF. Mercury collection can be realized by injecting PAC upstream. The collected particles are then either recirculated or disposed.

Benefits of GE’s NID for Dry Flue Gas Desulfurization:

  • More than 20 years of successful commercial SOx control operation, with more than 50 industrial references and over 15 GW installed globally
  • Up to 98% SO2 removal, up to 4% sulfur in fuel, multi-pollutant control
  • Compact footprint compared to Spray Dryer Absorber (SDA)
  • Modular and standard design for lower construction costs
  • Applicable to many industry applications, including waste-to-energy, iron and steel

Spray dryer absorber (SDA)

This conventional dry FGD system is made up of a reactor followed by a fabric filter. In the reactor, the reagent slurry solution is atomized using either GE’s rotary atomizer technology or dual fluid nozzles, and the droplets react with the gaseous pollutants in the flue gas stream.

Benefits of GE’s SDA:

  • More than 35 years of Dry FGD experience, with more than 100 industrial references and 25 GW installed worldwide
  • Up to 95% SO2 removal, up to 2.5% sulfur in coal
  • Wide applicability for various process applications including metals and petrochemical refining, coke ovens, and waste-to-energy.
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High availability, lower CAPEX and OPEX

Dry Flue Gas Desulfurization Equipment Specifications

GE’s desulfurization solutions enable customers to meet or exceed stringent power plant gas emission requirements.

DFGD (NID)

SO2 Removal rate (%) Up to 98
SO3 Removal rate (%) Up to 95
HCl Removal rate (%) Up to 95
HF Removal rate (%) Up to 95
Maximum SO2 content at inlet (mg/Nm3) 10,000
Particulate emission guarantee (mg/Nm3) 10
Fuel Applicable for all fuels
Max inlet temperature (°C) 200
Load range per module (%) 50 - 100
Reagent Ca(OH)2 or CaO

DFGD (SDA)

SO2 Removal rate (%) Up to 98
SO3 Removal rate (%) Up to 95
HCl Removal rate (%) Up to 95
HF Removal rate (%) Up to 95
Maximum SO2 content at inlet (mg/Nm3) 6,000
Particulate emission guarantee (mg/Nm3) 10
Fuel Applicable for all fuels
Max inlet temperature (°C) 260
Load range per module (%) 15 - 100
Reagent Ca(OH)2 or CaO