Ammonium Sulfate / Ammonia-based FGD
MET ammonia-based wet FGD captures SO₂ and converts it into ammonium sulfate fertilizer. Explore the process, operating benefits and technical brochure.
Ammonium Sulfate / Ammonia-based FGD
Lime wet FGD systems
Gypsum Production From Lime-Based WFGD Processes By MET
Benefits of Lime WFGD
- Lime provides higher SO₂ absorption capacity compared to limestone
- The highly alkaline reagent results in reduced Liquid-to-Gas (L/G) ratio and therefore reduced power consumption relative to limestone-based scrubbing
- The higher reactivity of lime requires less retention time, reducing size and cost of the reaction tank
- Lower L/G (lower power) than limestone WFGD
- Utilizes smaller tank size due to requiring less reaction tank retention time
- Site specific economic factors may favor lime over limestone WFGD
Commercially Proven
- Thirty+ years of commercial operation at PacifiCorp, Hunter Station Units 1, 2 and 3 and Huntington Station Unit 1
- 25+ years of commercial operation at Allegheny Power, Mitchell Unit 3
- 25+ years of commercial operation at Allegheny Power, Harrison Units 1, 2 and 3
- 10+ years of commercial operation at for Minnkota Power Cooperative, Milton R. Young, Unit 1
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Other MET WFGD technologies
Limestone
Explore MET limestone wet FGD systems for SO₂ removal, using open spray towers and forced oxidation to produce gypsum for agricultural and building uses.
Limestone
Sodium Hydroxide
MET sodium hydroxide wet scrubbers absorb SO₂ into a dissolved solution without solid waste. Explore sodium scrubbing chemistry and engineering support.
Sodium HydroxideSO₂ Scrubber Studies and Upgrades By MET
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