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Hitachi Power Systems America, Ltd.

Hitachi

Air Quality Control Systems

J-Power - Tachibanawan - 1050 MW - Operation 2001
J-Power - Tachibanawan – 1050 MW – Operation 2001

Hitachi's wet FGD absorber modules have several features that minimize capital investment and operating costs while increasing reliability and turn-down

Our WFGD technology:

  • In-situ forced oxidation using air lances and side entering agitators.
  • Employs limestone slurry.
  • SO2 removal-enhancing additives not required.
  • Utilizes both open spray tower and tray tower technologies.
  • Produce commercial grade gypsum.
  • Eliminates needs for primary dewatering.

Wide Flue Gas Inlet:

  • Reduces Absorber Heights
  • Improves Gas Distribution

Increased Spray Zone Velocity:

  • Increased SO2 Removal
  • Reduces Absorber Diameter

Spray Flux Density Profile:

  • Reduces absorber Heights
  • Improves Gas Distribution (Sneakage)

Reaction Tank Solids Concentrations:

  • Maximizes Absorption and Reaction of SO2
  • Permit Single Stage Dewatering

Desulfurization absorbers have undergone a series of technology advancements that, today, result in improved reliability, increase availability, lower investments and lower operating/maintenance costs.