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8. Glossary
Cracking; cracking
In petrochemistry, thermolysis of petroleum and its liquid derivatives. The operation consists in breaking down a complex organic molecule into smaller elements, notably alkanes, alkenes, aldehydes and ketones.
Dispersion; dispersion
Ratio between the number of surface atoms and the total number of atoms. This is a unitless number, often expressed as a %.
Dismutation; dismutation
A chemical reaction in which one species reacts with itself, and is found after the reaction in the form of two species.
Hydrogenation; hydrogenation
Chemical reaction involving the addition of a dihydrogen molecule (H 2 ) to another compound. This reaction is usually used to...
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Unit operations. Chemical reaction engineering
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