초록 ▼

Process for isomerization of a feedstock that contains aromatic compounds with eight carbon atoms characterized in that it comprises at least one isomerization stage a) that is carried out in the presence of a catalyst that contains at least one metal of group VIII and that is activated according to

Process for isomerization of a feedstock that contains aromatic compounds with eight carbon atoms characterized in that it comprises at least one isomerization stage a) that is carried out in the presence of a catalyst that contains at least one metal of group VIII and that is activated according to an activation process that comprises at least one sulfurization stage and at least one stage for passivation with ammonia, and at least one dehydrogenation stage b).

대표청구항 ▼

1. A process for isomerization of a feedstock containing aromatic compounds having eight carbon atoms, said process comprising (a) conduct least one isomerization stage carried out at a temperature of 320.degree. C. to 400.degree. C., and in the presence of a catalyst containing at least one metal o

1. A process for isomerization of a feedstock containing aromatic compounds having eight carbon atoms, said process comprising (a) conduct least one isomerization stage carried out at a temperature of 320.degree. C. to 400.degree. C., and in the presence of a catalyst containing at least one metal of group VIII, said catalyst having been activated according to an activation process comprising at least one sulfurization stage and at least one passivation stage with ammonia or with an ammonia precursor, to obtain an effluent containing 10 to 30%, by mass of the outlet effluent, naphthenes with eight carbon atoms, and (b) conducting with the outlet effluent of the at least one isomerization stage at least one dehydrogenation stage.