Physico-chemical characteristics of reforming

Similar to the attempt to obtain a high octane number from amixture of hydrocarbons aromatics production results from the following reactions  

Added to these are the isomerization of paraffins to isoparaffins and cd alkylcydo-hexanes, conversions which supply the fotegoing reactions. 

A number of side reactions also takes place, the most important of whidi are the following  

The stability of aromatics in compariscm with other hydrocarbons increases with temperature (Fig. 21), so operations are conducted above 30(fC. However, the kinetic competition between the d ired and side reactions gives rise to the selection of specific operating conditions for the required conversions  

These consideradons are illustrated by thermodynamic calcnladons, of which some results are given in Table 221. 

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