The choice of the best heat transfer medium for regenerative thermal oxidizers (RTOs) depends on various factors such as operating temperature, specific application requirements and efficiency goals. The selection often involves consideration of materials such as ceramic saddles or structured metallic packing. These both serve to optimize heat exchange and thermal efficiency within the RTO system.
One disadvantage of structured metallic packing compared to ceramic saddles is that metallic materials are typically more susceptible to corrosion when exposed to certain aggressive or corrosive gases and environments. This susceptibility to corrosion can lead to a shorter lifespan and the need for more frequent replacement or maintenance of structured metallic packing, which can increase operational costs.