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Chemical Engineering vocabulary · Mass Transfer and Separation Processes

Drying

Meaning in chemical engineering, with examples

/ˈdraɪɪŋ/nounCore term

In chemical engineering, drying means: Removing water or another liquid from a solid, usually by heating it with hot gas or under vacuum, until it reaches the required moisture content.

In Turkish: kurutma

How it is used

Often the last step before packing a solid product. Common equipment includes spray dryers, fluid-bed dryers, rotary dryers and vacuum dryers. Engineers talk about moisture content, loss on drying (LOD) and drying time.

Example sentences

  1. Drying takes twelve hours because the cake still holds 30% solvent.

  2. The spray dryer outlet temperature controls the final moisture after drying.

Common collocations

  • spray drying
  • vacuum drying
  • drying time
  • drying rate
  • fluid-bed dryer
  • filtrationSeparating solid particles from a liquid or a gas by passing the mixture through a porous medium, such as a cloth, mesh or cartridge, that holds the solids back.
  • crystallizationForming solid crystals from a solution, usually by cooling it or evaporating the solvent, so that a pure solid product can be separated.
  • latent heatThe heat taken in or given out when a substance changes phase, for example from liquid to vapor, without any change in temperature.
  • unit operationA basic physical step that appears in many different processes, such as distillation, filtration, drying or heat exchange. Any plant can be described as a chain of these steps.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Mass Transfer and Separation Processes

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