A fluidized bed is a condition of a two-stage blend of particulate strong material and liquid, which is generally utilized in numerous cutting edge advancements for effective usage of different physical and concoction forms. Fluidized beds have been utilized in mechanical procedures, for example, breaking and changing of hydrocarbons (oil), carbonization and gasification of coal, metal simmering, Fischer-Tropsch union, polyethylene fabricating, limestone calcining, aluminum anhydride creation, granulation, vinil-chloride creation, ignition of waste, atomic fuel readiness, burning of strong, fluid and vaporous powers, drying, adsorption, cooling, warming, freezing, passing on, putting away and warm rewarding of different particulate strong materials. The expression "fluidized bed" is unavoidably associated with the expression "particulate strong material". Particulate materials are mechanical blends of large number of strong particles. Regular particulate materials begin from some drawn out characteristic procedures: warming, cooling, warm dilatation, coliding, smashing, cleaving up, climatic changes, stream disintegration and disintegration brought about via ocean waves. Numerous innovative procedures likewise produce particlate strong material: granulating, hacking up, processing, vanishing, crystalization, splashing and drying. Particulate materials can likewise be of natural (plant) birthplace: leafy foods materials most normally comprise of strong particles with a scope of shape and size. Most of inorganic particulate strong materials found in nature have an amazingly wide scope of molecule sizes. Such materials are called polydisperse materials. By certain innovative procedures, it is conceivable to deliver particles with for all intents and purposes a similar shape and size. Natural particulate materials found in nature (products of the soil) comprise of particles of comparable shape and size. Such materials are called monodisperse materials. The geometrical, physical and aerodynamical properties of particulate strong materials all influence the beginning of fluidization, and the attributes, conduct and the principle boundaries of fluidized beds.