Method of using catalysts for reforming or isomerizing hydrocarbons in the presence of hydrogen

摘要

These catalysts comprise: A refractory oxide-mineral carrier; a halogen element, present in combined form; and, in free or combined form, (a) a platinum-group metal, and (b) tin. They are characterized in that they contain, moreover, a metal from groups Ia and IIa of the periodic table of the elements. Specifically, said metal from groups Ia and IIa may be sodium, lithium, potassium, calcium or barium.