Reforming at a plurality of severities with constant recycle gas of optimum hydrogenconcentration to all zones

Claim 1

A METHOD OF OPERATING A REFORMING REACTOR TO PRODUCE REFORMED GASOLINES OF DIFFERENT INCREASED ANTI-KNOCK RATING AT MAXIMUM CAPACITY WHILE NOT EXCEEDING THE COKE COMBUSTION RATE OF THE CONCOMITANTLY OPERATED KILN, WHICH CONSISTS ESSENTIALLY IN ESTABLISHING TWO REACTION ZONES AND A KILN, CIRCULATING PARTICLE-FORM SOLID REFORMING CATALYST SUCCESSIVELY THROUGH SAID REACTION ZONES AND SAID KILN, INTRODUCING COMPLETELY VAPORIZED FEED NAPHTHA TO BE REFORMED INTO THE FIRST OF SAID REACTION ZONES UNDER GIVEN REFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND SPACE VELOCITY TO PRODUCE A FIRST REACTION ZONE EFFUENT COMPRISING A REFORMED GASOLINE OF GIVEN ANTI-KNOCK RATING HIGHER THAN THE ANTI-KNOCK RATING OF SAID FEED NAPHTHA AND A FIRST HYDROGEN-CONTAINING GAS FOR RECYCLE HAVING A HYDROGEN CONCENTRATION IN EXCESS OF THAT REQUIRED TO CONTROL THE DEPOSITION OF COKE IN SAID REACTION ZONE TO A TOLERABLE LEVEL NOT EXCEEDING THE COKE BURNING CAPACITY OF SAID KILN, SIMULTANEOUSLY INTRODUCING COMPLETELY VAPORIZED FEED NAPHTHA TO BE REFORMED INTO THE SECOND OF SAID REACTION ZONES UNDER MORE SEVERE REFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND SPACE VELOCITY THAN THE AFORESAID GIVEN REFORMING CONDITIONS TO PRODUCE A SECOND REACTION ZONE EFFLUENT COMPRISING A REFORMED GASOLINE OF HIGHER ANTI-KNOCK RATING THAN THE AFORESAID GIVEN ANTIKNOCK RATING AND A SECOND HYDROGEN-CONTAINING GAS FOR RECYCLE HAVING A HYDROGEN CONCENTRACTION LOWER THAN THAT REQUIRED TO CONTROL THE DEPOSITION OF COKE IN SAID SECOND REACTION ZONE TO A TOLERABLE LEVEL NOT EXCEEDING THE COKEBURNING CAPACITY OF SAID KILN, SEPARATING SAID FIRST HYDROGEN-CONTAINING GAS FROM SAID FIRST REACTION ZONE EFFLUENT, SEPARATING SAID SECOND HYDROGEN-CONTAINING GAS FROM SAID SECOND REACTION ZONE EFFLUENT, VENTING A PORTION OF SAID SECOND HYDROGEN-CONTAINING GAS, SAID VENTED PORTION OF SAID SECOND HYDROGEN-CONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID SECOND HYDROGEN-CONTAINING GAS WHEN SEPARATED FROM SAID SECOND REACTION ZONE EFFLUENT, MIXING THE UNVENTED BALANCE OF SAID SECOND HYDROGENCONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID SECOND HYDROGEN-CONTAINING GAS WHEN SEPARATED FROM SAID SECOND REACTION ZONE EFFLUENT WITH SAID FIRST HYDROGEN-CONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID FIRST REACTION ZONE EFFLUENT TO PROSEPARATED FROM SAID FIRST HYDROGEN-CONTAINING GAS WHEN DUCE OF HYDROGEN-CONTAINING MIXED RECYCLE GAS HAVING A HYDROGEN CONCENTRATION HIGHER THAN SAID SECOND HYDROGEN-CONTAINING GAS AND SUFFICIENT TO CONTROL THE COKE DEPOSITION IN BOTH OF SAID REACTION ZONES TO A TOLERABLE LEVEL NOT EXCEEDING THE COKE BURNING CAPACITY OF SAID CYCLE GAS INTO BOTH REACTION ZONES.

Claim 2

A METHOD OF OPERATING A REFORMING REACTOR TO PRODUCE REFORMED GASOLINES OF DIFFERENT INCREASED ANTI-KNOCK RATING AT MAXIMUM CAPACITY WHILE NOT EXCEEDING THE COKE COMBUSTION RATE OF THE CONCOMITANTLY OPERATED KILN, WHICH CONSISTS ESSENTIALLY IN ESTABLISHING TWO REACTION ZONES AND A KILN, CIRCULATING PARTICLE-FORM SOLID REFORMING CATALYST SUCCESSIVELY THROUGH SAID REACTION ZONES AND SAID KILN, INTRODUCING COMPLETELY VAPORIZED FEED NAPHTHA TO BE REFORMED INTO THE FIRST OF SAID REACTION ZONES UNDER GIVEN REFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND SPACE VELOCITY TO PRODUCE A FIRST REACTION ZONE EFFUENT COMPRISING A REFORMED GASOLINE OF GIVEN ANTI-KNOCK RATING HIGHER THAN THE ANTI-KNOCK RATING OF SAID FEED NAPHTHA AND A FIRST HYDROGEN-CONTAINING GAS FOR RECYCLE HAVING A HYDROGEN CONCENTRATION IN EXCESS OF THAT REQUIRED TO CONTROL THE DEPOSITION OF COKE IN SAID REACTION ZONE TO A TOLERABLE LEVEL NOT EXCEEDING THE COKE BURNING CAPACITY OF SAID KILN, SIMULTANEOUSLY INTRODUCING COMPLETELY VAPORIZED FEED NAPHTHA TO BE REFORMED INTO THE SECOND OF SAID REACTION ZONES UNDER MORE SEVERE REFORMING CONDITIONS OF TEMPERATURE, PRESSURE AND SPACE VELOCITY THAN THE AFORESAID GIVEN REFORMING CONDITIONS TO PRODUCE A SECOND REACTION ZONE EFFLUENT COMPRISING A REFORMED GASOLINE OF HIGHER ANTI-KNOCK RATING THAN THE AFORESAID GIVEN ANTIKNOCK RATING AND A SECOND HYDROGEN-CONTAINING GAS FOR RECYCLE HAVING A HYDROGEN CONCENTRACTION LOWER THAN THAT REQUIRED TO CONTROL THE DEPOSITION OF COKE IN SAID SECOND REACTION ZONE TO A TOLERABLE LEVEL NOT EXCEEDING THE COKEBURNING CAPACITY OF SAID KILN, SEPARATING SAID FIRST HYDROGEN-CONTAINING GAS FROM SAID FIRST REACTION ZONE EFFLUENT, SEPARATING SAID SECOND HYDROGEN-CONTAINING GAS FROM SAID SECOND REACTION ZONE EFFLUENT, VENTING A PORTION OF SAID SECOND HYDROGEN-CONTAINING GAS, SAID VENTED PORTION OF SAID SECOND HYDROGEN-CONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID SECOND HYDROGEN-CONTAINING GAS WHEN SEPARATED FROM SAID SECOND REACTION ZONE EFFLUENT, MIXING THE UNVENTED BALANCE OF SAID SECOND HYDROGENCONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID SECOND HYDROGEN-CONTAINING GAS WHEN SEPARATED FROM SAID SECOND REACTION ZONE EFFLUENT WITH SAID FIRST HYDROGEN-CONTAINING GAS HAVING SUBSTANTIALLY THE SAME COMPOSITION AS SAID FIRST REACTION ZONE EFFLUENT TO PROSEPARATED FROM SAID FIRST HYDROGEN-CONTAINING GAS WHEN DUCE OF HYDROGEN-CONTAINING MIXED RECYCLE GAS HAVING A HYDROGEN CONCENTRATION HIGHER THAN SAID SECOND HYDROGEN-CONTAINING GAS AND SUFFICIENT TO CONTROL THE COKE DEPOSITION IN BOTH OF SAID REACTION ZONES TO A TOLERABLE LEVEL NOT EXCEEDING THE COKE BURNING CAPACITY OF SAID CYCLE GAS INTO BOTH REACTION ZONES.