A procedure to catalytically reform a relatively poor hydrocarbon material which would hurt in the gasoline interval. (Machine-translation by Google Translate, not legally binding)

摘要

A method of catalytically reforming a relatively poor hydrocarbon filler material boiling in the gasoline range, comprising the steps of: (a) contacting the feedstock, hydrogen, and a halogen or halogen-containing compound, in a substantially water-free reforming zone, with a highly selective reforming catalyst comprising a combination of a platinum group component, a rhenium component, and a halogen component with an alumina support material, under selected reforming conditions to produce a high octane C5 + reformate, a hydrogen stream and a debutanizer overhead gas stream, said halogen or halogen-containing compound being present in a ratio corresponding to about 0.1 ppm at about 5 p.m. by weight of the feedstock, calculated with respect to elemental halogen, said condition of absence of water being maintained until the selectivity of the catalyst drops to an unacceptable value; and then (b) continuously add water or a water-producing compound to the reforming zone in an amount corresponding to approximately 5 p.m. at approximately 50 p.m. by weight of the hydrocarbon feedstock, calculated with respect to H2O, while such contact is continued, thereby increasing the selectivity of the catalyst and allowing the reforming operation to continue for a significant additional period of time, with a relatively high yield of C5 + . (Machine-translation by Google Translate, not legally binding)