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Chemical Engineering vocabulary · Reactions and Reactors

Yield

Meaning in chemical engineering, with examples

/jiːld/nounCore term

In chemical engineering, yield means: The amount of desired product you actually get, usually shown as a percentage of the amount you could get in theory from the raw material fed.

In Turkish: verim, ürün verimi

How it is used

Used in reaction engineering, production reports and economics. Yield is improved, increased, lost or calculated; plants report 'yield on feed' or 'overall yield'. It is also a verb: 'the reaction yields 92% product'.

Example sentences

  1. After the new catalyst was installed, the yield went up from 86% to 91%.

  2. Most of the yield loss comes from side reactions at high temperature.

Common collocations

  • product yield
  • overall yield
  • yield loss
  • improve the yield
  • theoretical yield
  • conversionThe fraction of a reactant that has reacted, usually given as a percentage of the amount fed to the reactor.
  • selectivityHow much of the reacted feed turns into the desired product rather than into unwanted by-products, usually given as a percentage.
  • by-productA substance made in a process alongside the main product. It may be sold, used elsewhere in the plant, or treated as waste.
  • reactorA vessel or piece of equipment where a chemical reaction is carried out under controlled temperature, pressure and mixing.

This word in other fields

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

More terms: Reactions and Reactors

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