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Fluidized Bed | Open Access Journals
Chemical Sciences Journal

Chemical Sciences Journal

ISSN: 2150-3494

Open Access

Fluidized Bed

A fluidized bed is a physical phenomenon that occurs when an amount of a solid particulate matter (usually present in a containment vessel) is placed under appropriate conditions to cause a solid / fluid mixture to behave like a fluid. Fluid beds are used for various purposes, such as fluidized bed reactors (types of chemical reactors), separation of solids, fluid catalytic cracking, combustion of the fluidized bed, heat or mass transfer or modification of the interface, such as applying a coating on solid objects. An air-fluidized support surface uses the circulation of filtered air through silicone-coated ceramic beads, creating the characteristics of the fluid. This is indicated for patients with stage 3 and 4 pressure ulcers or post-operative myocardial flaps or skin grafts. Based on different groups of Geldart particles and gas velocity, different fluidization regimes can be observed: fixed bed, homogeneous fluidization, bubbling fluidization, slugging fluidization, turbulent fluidization and dragging process.

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