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A hydrocarbon feedstock is catalytically reformed in a sequence comprising a continuous-reforming zone associated with continuous catalyst regeneration, a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic L-zeolite and an aromatics-isomerization zone con

A hydrocarbon feedstock is catalytically reformed in a sequence comprising a continuous-reforming zone associated with continuous catalyst regeneration, a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic L-zeolite and an aromatics-isomerization zone containing a catalyst comprising a platinum-group metal, a metal attenuator and a refractory inorganic oxide. The process combination features high selectivity in producing a high-purity BTX product from naphtha.

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[ We claim:] [1.] A process combination for the upgrading of a hydrocarbon feedstock to a substantially pure BTX product comprising the steps of:(a) contacting the hydrocarbon feedstock in the presence of free hydrogen in a continuous-reforming zone with a dual-function reconditioned reforming catal

[ We claim:] [1.] A process combination for the upgrading of a hydrocarbon feedstock to a substantially pure BTX product comprising the steps of:(a) contacting the hydrocarbon feedstock in the presence of free hydrogen in a continuous-reforming zone with a dual-function reconditioned reforming catalyst comprising a platinum-group metal and a refractory inorganic oxide at first reforming conditions comprising a pressure of from about 100 kPa to 6 MPa, liquid hourly space velocity of from about 0.2 to 10 hr.sup.-1 and temperature of from about 400.degree. to 560.degree. C. to produce a first effluent and deactivated catalyst particles having coke deposited thereon;(b) removing the deactivated catalyst particles at least semicontinuously from the continuous-reforming zone and contacting at least a portion of the particles in a continuous-regeneration zone with an oxygen-containing gas at a temperature of about 450.degree.-600.degree. C. to remove coke by combustion and obtain regenerated catalyst particles;(c) contacting the regenerated catalyst particles in a reduction zone with a hydrogen-containing gas at a temperature of about 450.degree. to 550.degree. C. to obtain reconditioned catalyst particles; and,(d) contacting the first effluent in the presence of free hydrogen in a zeolitic-reforming zone at second reforming conditions comprising a pressure of from about 100 kPa to 6 MPa, a temperature of from 260.degree. to 560.degree. C., and a liquid hourly space velocity of from about 0.5 to 40 hr.sup.-1 with a zeolitic reforming catalyst comprising a nonacidic L-zeolite, a refractory inorganic oxide and a platinum-group metal component to produce an aromatics-enriched effluent; and,(e) contacting the aromatics-enriched effluent without extraction of aromatics therefrom in an aromatics-isomerization zone at aromatics-isomerization conditions comprising a pressure of from about 100 kPa to 3 MPa, a temperature of from 300.degree. to 500.degree. C., a liquid hourly space velocity of from about 0.2 to 100 hr.sup.-1 and a hydrogen-to-hydrocarbon mole ratio of from about 0.5 to 15 with an aromatics-isomerization catalyst comprising a zeolite selected from MFI, MEL, MTW, MTT and FER, a refractory inorganic oxide, a platinum-group metal component and a metal attenuator to obtain a concentrated BTX product containing less than about 1 mass-% nonaromatics.