Dual mode hydrocarbon conversion process

A dual-mode hydrocarbon conversion process which comprises reforming a hydrocarbon feedstock containing at least one component selected from the group consisting of sulfur-containing material, nitrogen-containing material and olefin-containing material in a single hydrocarbon conversion reaction zone operated under reforming conditions which include a temperature of from about 600.degree. F. to about 1200.degree. F., a pressure of from about 100 psig to about 300 psig, a liquid hourly space velocity of from about 0.1 to about 20 and a hydrogen circulation rate of from about 1000 to about 10,000 standard cubic feet/barrel employing as catalyst a noble metal-containing crystalline silicate having a Constraint Index of not greater than about 2 and a framework SiO.sub.2 /Al.sub.2 O.sub.3 ratio of at least about 50 to provide a reformate prior to or following hydrocracking a feedstock which is identical to that of the reforming feedstock in said hydrocarbon conversion reaction zone operated under hydrocracking conditions which include an operating pressure of from above about 350 psig to about 1000 psig, a temperature of from about 500.degree. F. to about 1000.degree. F., a volume hourly space velocity of from about 1 to about 10 and a hydrogen to hydrocarbon ratio of from about 1 to about 10, and employing the aforesaid catalyst to provide a hydrocrackate, said reformate containing more C.sub.5.sup.+ hydrocarbons and less C.sub.3-4 hydrocarbons than said hydrocrackate and said hydrocrackate containing less C.sub.5.sup.+ hydrocarbons and more C.sub.3-4 hydrocarbons than said reformate.