Patent ID: 6015932
Filing Date: 2000-01-18
Classification: B01J,C10G

Abstract:
In a process for the isomerization of a naphtha feedstock to obtain an isomerized product having an increased isoparaffin content at paraffin- isomerization conditions comprising an isomerization temperature of from 40 to 250.degree. C. in the presence of a solid strong-acid isomerization catalyst comprising an anion-modified metal oxide and a zerovalent platinum-group metal component thereby effecting a loss in isomerization activity of the catalyst and obtaining a deactivated catalyst, the improvement which comprises contacting the deactivated catalyst with a totally liquid-phase hydrocarbon stream at reactivation conditions comprising a reactivation temperature at least about 20.degree. C. lower than the isomerization temperature to obtain a reactivated catalyst and reutilizing the reactivated catalyst in the isomerization process.