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Dehydrocyclization

from Wikipedia, the free encyclopedia

Dehydrocyclization is the catalytic formation of aromatics from alkanes with the release of hydrogen, for example in catalytic reforming

Reaction

The catalytic formation of toluene from heptane proceeds at two different catalytic centers. Cyclization occurs preferentially at the acid centers, and dehydrogenation reactions occur at the metal centers.[1]
Cyclization of n-heptane to methylcyclohexane and 1,2-dimethylcyclopentane, respectively

KatReforming7.svg

Dehydrogenation of methylcyclohexane to toluene

KatReforming1.svg

The overall reaction is as follows

Dehydrocyclization reaction of heptane to toluene.svg

Individual references

  1. CCR Platforming(Memento of 28 May 2008 in the Internet Archive)

Web links

  • Entry for catalytic dehydrocyclization. In: IUPAC Compendium of Chemical Terminology (the “Gold Book”). doi:10.1351/goldbook.C00891 Version: 2.3.3