Process of isomerisation of a C7 cut with coproduction of an aromatic cut comprising mainly toluene

摘要

Preparation of an isomerate (I) (having research octane number of 80) and coproduction of an aromatic fraction (F) (comprising mainly toluene) from a fraction, comprises: using an aromatic (contained in the charge) extraction unit (E), isomerization unit (U) and separation unit (S) for linear and mono-, di- and tribranched paraffin, where (I) contains less than 1 (preferably 0.5) wt.% of aromatics. Preparation of an isomerate (I) (having research octane number of 80) and coproduction of an aromatic fraction (F) (comprising mainly toluene) from a fraction (comprising hydrocarbons (with 7 carbon atoms) containing paraffin, naphthenes and aromatics), comprises: using an aromatic (contained in the charge) extraction unit (E), isomerization unit (U) and separation unit (S) for linear and mono-, di- and tribranched paraffin, where (I) contains less than 1 (preferably 0.5) wt.% of aromatics.