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un appoint d'hydrogène est assuré par la ligne 15
the setup contains a specific zone where c8 paraffin, c8 naphthalene, toluene and benzene are separated from the other constituents of the effluent and where the quantity of c8 paraffin, c8 naphthalenes, toluene and benzene are measured and recycled and has also an inlet pipe for the introduction of the recycling in the isomerization reactor