Application of graphite heat exchangers in flue gas

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Graphite heat exchangers perform excellently in the recovery of waste heat from flue gas, and are particularly suitable for high-temperature, highly corrosive flue gas environments. They can effectively improve energy utilization efficiency and extend the lifespan of the equipment. In industrial settings such as power plants, steel mills, and petrochemical plants, flue gas is typically characterized by high temperatures, acidic components (such as SO₂ and HCl), high humidity, and dust. Traditional metal heat exchangers are prone to corrosion, scaling, and leakage. Graphite heat exchangers, thanks to their excellent corrosion resistance, high thermal conductivity, and thermal stability, make them an ideal choice for addressing the challenges associated with such operating conditions: Strong corrosion resistance – Graphite exhibits high chemical inertness toward acidic media such as concentrated sulfuric acid, hydrofluoric acid, and hydrochloric acid; the annual corrosion rate