New Gore technology for innovative Flue Gas Desulphurization (FGD)

The GORE SO₂ Control System is a flue gas desulphurization system (FGD) which allows plants to comply with SO₂ emission standards without requiring any reagent. The system utilizes fixed catalysts to convert SO₂ into saleable sulfuric acid. This eliminates concerns related to reagent supply, logistics, handling, storage and preparation operations, reagent price volatility and solid waste disposal. Since the Gore System is installed after an existing ESP or baghouse there is no impact on the fly ash, allowing for its continued beneficial use.

No reagent, small footprint, simple operation, low operating cost - the GORE SO₂ Control System for flue gas desulphurization allows you to reap multiple benefits.

• No reagent required for SO₂ removal
• Low parasitic power consumption
• Revenue from sulfuric acid byproduct sales
• Simple operation

• Small, flexible footprint
• No impact on fly ash quality
• Additional PM reduction
• Minimal maintenance required
• No additional CO₂ generation

Sorbent Polymer Catalyst (SPC) composite material is a novel fluoropolymer-based substance created by Gore scientists. This substance's sorbent effectively captures both elemental and oxidized mercury from the flue gas stream. As a result, it is unaffected by modifications to fuel or manufacturing processes that alter mercury speciation. Through chemisorption, mercury is tightly bound inside the SPC. It is a highly successful solution for high sulfur coals or units with SO₃ gas conditioning because, unlike many activated carbon sorbents, the presence of SO₃ does not prevent mercury extraction by the SPC. Since no injected sorbents are used, there is no need to worry about fly ash contamination or additional particulate matter collection. Additionally, the technology eliminates the need for chemicals for oxidation, thus avoiding concerns over halogen-induced corrosion and wastewater treatment complications.

The lack of reagent and low parasitic power enables a significantly lower operating cost than other Flue Gas Desulphurization (FGD) systems. Moreover, the footprint of the system has significant flexibility allowing it to fit into space constrained sites that are challenging for wet and semi-dry systems. Since water is recovered in the sulfuric acid concentration step, the overall water consumption is lower than with a wet limestone FGD system. The passive system operation is simple and doesn’t require any adjustments, treatments, or regeneration. The catalytic SPC modules have no moving parts and will continuously convert SO₂ into sulfuric acid with the lowest total cost of ownership.

The sulfuric acid byproduct is a versatile chemical with strong demand in the fertilizer production industry. Unlike limestone-based FGD systems, which release CO₂ as part of the chemical reaction involved in capturing SO₂, the GORE SO₂ Control System's catalytic reaction does not release CO₂.