Fluid Bed Dryers differ from rotary dryers and tray dryers in their drying mechanism. While rotary dryers use a rotating drum and tray dryers rely on layered trays for drying, Fluid Bed Dryers use a fluidization process. This process provides direct contact between particles and the drying gas, resulting in more uniform drying. Additionally, Fluid Bed Dryers often achieve faster drying times and better energy efficiency compared to conventional dryers.