Fluidized solids reactor system

Claim 1

A METHOD FOR REFORMING HYDROCARBONS WHICH COMPRISES PASSING PREHEATED HYDROCARBON FEED VAPORS AND PREHEATED HYDROGEN-RICH GAS THROUGH A DENSE FLUIDIZED BED OF REFORMING CATALYST PARTICLES IN A REACTION ZONE MAINTAINED UNDER REFORMING CONDITIONS OF TEMPERATURE AND PRESSURE, REMOVING REACTION PRODUCTS, SUBSTANTIALLY FREE FROM CATALYST PARTICLES OVERHEAD FROM THE REACTION ZONE, WITHDRAWING SPENT CATALYST PARTICLES FROM THE DENSE, FLUIDIZED BED IN THE REACTION ZONE INTO A STRIPPING ZONE, CONTACTING THE WITHDRAWN SPENT CATALYST PARTICLES IN THE STRIPPING ZONE WITH A STRIPPING GAS TO REMOVE HYDROCARBONS AND HYDROGEN FROM SAID CATALYST PARTICLES, DISCHARGING STIPPED CATALYST PARTICLES INTO A SEPARATE REGENERATION ZONE, PASSING AIR THROUGH A DENSE FLUIDIZED BED OF CATALYST PARTICLES IN THE REGENERATION ZONE IN ORDER TO BURN CARBONACEOUS DEPOSITS FROM THE CATALYST PARTICLES, WITHDRAWING REGENERATED CATALYST PARTICLES FROM THE REGENERATION ZONE INTO A SEPARATE REDUCING-PRETREATING ZONE, WITHDRAWING A STREAM OF REACTOR CATALYST PARTICLES FROM THE REACTION ZONE AND MIXING THE REACTOR CATALYST PARTICLES WITH THE REGENERATED CATALYST PARTILCES IN THE REDUCINGPRETREATING ZONE, PASSING HYDROGEN-RICH GAS THROUGH THE RESULTANT MIXTURE OF REGENERATED AND REACTOR CATALYST AND DISCHARGING THE HYDROGEN TREATED MIXTURE OF CATALYST PARTICLES INTO THE REACTION ZONE, WITHDRAWING ADDITONAL STREAMS OF REACTOR CATALYST DIRECTLY FROM THE DENSE, FLUIDIZED BED IN THE REACTION ZONE, PASSING THESE STREAMS OF REACTOR CATALYST IN INDIRECT HEAT EXCHANGE RELATION TO THE DENSE, FLUIDIZED BED IN THE REGENERATOR ZONE IN ORDER TO RAISE THE TEMPERATURE OF THE STREAMS OF REACTOR CATALYST AND RETURNING THE HEATED STREAMS OF REACTOR CATALYST DIRECTLY TO THE DENSE, FLUIDIZED BED IN THE REACTOR ZONE.

Claim 2

A METHOD FOR REFORMING HYDROCARBONS WHICH COMPRISES PASSING PREHEATED HYDROCARBON FEED VAPORS AND PREHEATED HYDROGEN-RICH GAS THROUGH A DENSE FLUIDIZED BED OF REFORMING CATALYST PARTICLES IN A REACTION ZONE MAINTAINED UNDER REFORMING CONDITIONS OF TEMPERATURE AND PRESSURE, REMOVING REACTION PRODUCTS, SUBSTANTIALLY FREE FROM CATALYST PARTICLES OVERHEAD FROM THE REACTION ZONE, WITHDRAWING SPENT CATALYST PARTICLES FROM THE DENSE, FLUIDIZED BED IN THE REACTION ZONE INTO A STRIPPING ZONE, CONTACTING THE WITHDRAWN SPENT CATALYST PARTICLES IN THE STRIPPING ZONE WITH A STRIPPING GAS TO REMOVE HYDROCARBONS AND HYDROGEN FROM SAID CATALYST PARTICLES, DISCHARGING STIPPED CATALYST PARTICLES INTO A SEPARATE REGENERATION ZONE, PASSING AIR THROUGH A DENSE FLUIDIZED BED OF CATALYST PARTICLES IN THE REGENERATION ZONE IN ORDER TO BURN CARBONACEOUS DEPOSITS FROM THE CATALYST PARTICLES, WITHDRAWING REGENERATED CATALYST PARTICLES FROM THE REGENERATION ZONE INTO A SEPARATE REDUCING-PRETREATING ZONE, WITHDRAWING A STREAM OF REACTOR CATALYST PARTICLES FROM THE REACTION ZONE AND MIXING THE REACTOR CATALYST PARTICLES WITH THE REGENERATED CATALYST PARTILCES IN THE REDUCINGPRETREATING ZONE, PASSING HYDROGEN-RICH GAS THROUGH THE RESULTANT MIXTURE OF REGENERATED AND REACTOR CATALYST AND DISCHARGING THE HYDROGEN TREATED MIXTURE OF CATALYST PARTICLES INTO THE REACTION ZONE, WITHDRAWING ADDITONAL STREAMS OF REACTOR CATALYST DIRECTLY FROM THE DENSE, FLUIDIZED BED IN THE REACTION ZONE, PASSING THESE STREAMS OF REACTOR CATALYST IN INDIRECT HEAT EXCHANGE RELATION TO THE DENSE, FLUIDIZED BED IN THE REGENERATOR ZONE IN ORDER TO RAISE THE TEMPERATURE OF THE STREAMS OF REACTOR CATALYST AND RETURNING THE HEATED STREAMS OF REACTOR CATALYST DIRECTLY TO THE DENSE, FLUIDIZED BED IN THE REACTOR ZONE.

Claim 3

AN APPARATUS FOR REFORMING OF HYDROCARBONS COMPRISING A VERTICAL VESSEL, A REACTOR ZONE ARRANGED IN THE UPPER PART AND A REGENERATOR ZONE ARRANGED IN THE LOWER PART OF SAID VESSEL, HAIRPIN TUBES HAVING THEIR OPEN ENDS ARRANGED IN THE LOWER PART OF THE REACTOR ZONE AND EXTENDING DOWNWARD INTO THE REGENERATOR ZONE, AN INLET LINE CONNECTED TO ONE LEG OF EACH OF SAID HAIRPIN TUBES FOR THE SUPPLY OF LIFT GAS THERETO, AN INLET FOR THE SUPPLY OF REGENERATION GAS TO THE BOTTOM OF THE REGENERATOR ZONE, AN OUTLET LINE FOR REGENERATION GASES CONNECTED TO THE UPPER PART OF THE REGENERATOR ZONE, MEANS ARRANGED IN THE OUTLET LINE FOR REGENERATION GASES FOR SEPARATING ENTRAINED CATALYST PARTICLES FROM THE REGENERATION GASES, A TRANSFER LINE ARRANGED BELOW SAID SEPARATOR MEANS EXTENDING INTO THE REGENERATOR ZONE, CONDUITS EXTENDING FROM SAID SEPARATOR MEANS FOR DISCHARGING SEPARATED CATALYST PARTICLES INTO SAID TRANSFER LINE, AN INLET LINE FOR SUPPLYING CARRYING GAS TO SID TRANSFER LINE FOR CONVEYING RECOVERED CATALYST TO THE REGENERATOR ZONE, AN OUTLET WELL ARRANGED WITHIN THE REGENERATOR ZONE FOR RECEIVING REGENERATED CATALYST, A REGENERATED CATALYST RISER LINE, A U-BEND CONNECTION BETWEEN SAID OUTLET WELL AND SAID RISER LINE, AN INLET FOR THE SUPPLY OF LIFT GAS TO THE BOTTOM OF SAID RISER LINE A PRETREATER-REDUCER SURROUNDING THE UPPER PART OF SAID RISER LINE, A CONNECTOR LINE FOR TRANSFERRING CATALYST FROM THE REACTOR TO THE PRETREATER-REDUCER, AN INLET FOR SUPPLYING REDUCING GAS TO THE BOTTOM OF THE PRETREATER-REDUCER AND A CONNECTOR LINE BETWEEN THE BOTTOM OF THE PRETREATERREDUCER AND THE REACTOR ZONE FOR TRANSFERRING A MIXTURE OF REACTOR CATALYST AND RETREATED REGENERATED CATALYST TO THE REACTOR ZONE.

Claim 4

AN APPARATUS FOR REFORMING OF HYDROCARBONS COMPRISING A VERTICAL VESSEL, A REACTOR ZONE ARRANGED IN THE UPPER PART AND A REGENERATOR ZONE ARRANGED IN THE LOWER PART OF SAID VESSEL, HAIRPIN TUBES HAVING THEIR OPEN ENDS ARRANGED IN THE LOWER PART OF THE REACTOR ZONE AND EXTENDING DOWNWARD INTO THE REGENERATOR ZONE, AN INLET LINE CONNECTED TO ONE LEG OF EACH OF SAID HAIRPIN TUBES FOR THE SUPPLY OF LIFT GAS THERETO, AN INLET FOR THE SUPPLY OF REGENERATION GAS TO THE BOTTOM OF THE REGENERATOR ZONE, AN OUTLET LINE FOR REGENERATION GASES CONNECTED TO THE UPPER PART OF THE REGENERATOR ZONE, MEANS ARRANGED IN THE OUTLET LINE FOR REGENERATION GASES FOR SEPARATING ENTRAINED CATALYST PARTICLES FROM THE REGENERATION GASES, A TRANSFER LINE ARRANGED BELOW SAID SEPARATOR MEANS EXTENDING INTO THE REGENERATOR ZONE, CONDUITS EXTENDING FROM SAID SEPARATOR MEANS FOR DISCHARGING SEPARATED CATALYST PARTICLES INTO SAID TRANSFER LINE, AN INLET LINE FOR SUPPLYING CARRYING GAS TO SID TRANSFER LINE FOR CONVEYING RECOVERED CATALYST TO THE REGENERATOR ZONE, AN OUTLET WELL ARRANGED WITHIN THE REGENERATOR ZONE FOR RECEIVING REGENERATED CATALYST, A REGENERATED CATALYST RISER LINE, A U-BEND CONNECTION BETWEEN SAID OUTLET WELL AND SAID RISER LINE, AN INLET FOR THE SUPPLY OF LIFT GAS TO THE BOTTOM OF SAID RISER LINE A PRETREATER-REDUCER SURROUNDING THE UPPER PART OF SAID RISER LINE, A CONNECTOR LINE FOR TRANSFERRING CATALYST FROM THE REACTOR TO THE PRETREATER-REDUCER, AN INLET FOR SUPPLYING REDUCING GAS TO THE BOTTOM OF THE PRETREATER-REDUCER AND A CONNECTOR LINE BETWEEN THE BOTTOM OF THE PRETREATERREDUCER AND THE REACTOR ZONE FOR TRANSFERRING A MIXTURE OF REACTOR CATALYST AND RETREATED REGENERATED CATALYST TO THE REACTOR ZONE.