What does fluidization mean?
Fluidization is the process of making a substance, especially a mass of solid particles, behave as though it were a fluid. This is commonly achieved by passing gas or liquid through the particles, causing them to become suspended and flow more freely. In chemical and process engineering, fluidized beds are used for operations such as drying, combustion, mixing, and heat transfer. The process does not necessarily involve melting or liquefying the solid; rather, it changes how the material behaves by increasing the space between particles and promoting movement. Fluidization is therefore related to, but not identical with, liquefaction. The word is specialized and is most often encountered in technical discussions of reactors, combustion systems, powders, and particle handling. Its unusual idea—that a solid can retain its identity while acquiring fluid-like movement—makes it a precise and useful term for describing both industrial processes and, occasionally, metaphorical transformations.
nounThe process of making a material or mass of solid particles behave as a fluid, especially by introducing or moving gas or liquid through it so that the particles become suspended and flow. The term can also refer more generally to the act or process of fluidizing a substance or system.
- The process of making a solid material or a mass of particles flow like a fluid, especially by suspending the particles in a moving gas or liquid.
"Fluidization of the powdered material allows it to flow smoothly through the processing equipment."
"The fluidization of the fine particles prevented them from clumping during transport."
"Fluidization technology is used in fluidized-bed reactors to improve heat and mass transfer."
The plural is uncommon because fluidization is generally used as a mass noun. It may be used for distinct instances or processes.
"The two fluidizations produced samples with noticeably different particle sizes."
Fluidization makes a bed of solids behave like a liquid without actually melting it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does fluidization come from?
Fluidization is an English nominal formation based on fluidize, which was made by adding the suffix -ize to fluid. The English word fluid comes through French from Latin fluidus, meaning flowing or liquid; that adjective is related to Latin fluere, to flow. The same Latin root underlies words such as fluidity, effluent, and confluence, which reflect ideas of flowing, flowing out, or flowing together.
Related word forms
How fluidization is actually used
This is primarily a technical term used in chemical, mechanical, and process engineering. British English commonly uses the spelling "fluidisation," while American English generally uses "fluidization." It is usually treated as a mass noun, although a rare plural is possible.
Easily confused with fluidization
Fluidization makes particles flow like a fluid without necessarily turning them into a liquid, whereas liquefaction specifically describes a substance becoming liquid.