Sequential high pressure-low pressure reforming

Claim 1

THE METHOD OF PRODUCING GASOLINE HAVING AN OCTANE RATING OF 100 TO ABOUT 110 WHICH COMPRISES ESTABLISHING A PLURALTIY OF HIGH PRESSURE REFORMING ZONES EACH CONTAINING PARTRICLE-FORM SOLID REFORMING CATALYST AND PIPED FOR SERIES FLOW OF FLUID REACTANT FROM THE FIRST HIGH PRESSURE REFORMING ZONE TO THE LAST HIGH PRESSURE REFORMING ZONE OF THE AFORESAID PLURALITY OF HIGH PRESSURE REFORMING ZONES, ESTABLISHING A PLURALITY OF LOW PRESSURE REFORMING ZONES EACH CONTAINING PARTICLE-FORM SOLID REFORMING CATALYST AND PIPED FOR SERIES FLOW OF FLUID REACTANT FROM THE FIRST LOW PRESSURE REFOMING ZONE TO THE LAST LOW PRESSURE REFORMING ZONE OF THE AFORESAID PLURALITY OF LOW PRESSURE REFORMING ZONES, INTRODUCING CHARGE NAPHTHA INTO THE AFORESAID FIRST HIGH PRESSURE REFORMING ZONE, CONTACTING SAID CHARGE NAPHTHA IN EACH OF THE AFORESAID PLURALITY OF HIGH PRESSURE REFORMING ZONES WITH THE AFORESAID PARTICLEFORM SOLID REFORMING CATALYST IN THE PRESENCE OF HYDROGEN UNDER REFORMING CONDITIONS OF TEMPERATURE, SPACE VELOCITY AND PRESSURE OF AT LEAST 500 P.S.I.G., REGULATING THE CATALYSTTO-NAPHTHA RATIO IN EACH OF THE AFORESAID HIGH PRESSURE REFORMING ZONES TO OBTAIN A DIFFERENCE IN TEMPERATURE BETWEEN THE TEMPERATURE OF THE VAPORS ENTERING EACH HIGH PRESSURE REFORMING ZONE AND THE TEMPERATURE OF THE VAPORS LEAVING THE SAME HIGH PRESSURE REFORMING ZONE AND TO OBTAIN A SUM IN DEGREES FAHRENHEIT OF THE AFORESAID DIFFERENCES IN TEMPERATURE FOR ALL OF THE AFORESAID HIGH PRESSURE REFORMING ZONES EQUAL TO AT LEAST TWICE THE NUMERICAL VALUE OF THE CONCENTRATION OF NAPHTHENES IN THE AFORESAID CHARGE NAPHTHA, WITHDRAWIGN THE AFORESAID LAST HIGH PRESSURE REFORMING ZONE A HIGH PRESSURE EFFLUENT COMPRISING HYDROGEN AND C1 ANDHEAVIER HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE, INTRODUCING AT LEAST THAT PORTION OF THE AFORESAID HIGH PRESSURE COMPRISING HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE AT A PRESSURE LESS THAN 500 P.S.I.G. INTO THE AFORESAID FIRST LOW PRESSURE REFORMIGN ZONE, CONTACTING THE AFORESAID PORTION OF THE AFORESAID HIGH PRESSURE EFFLUENT IN EACH OF THE LOW PRESSURE REFORMING ZONES OF THE AFOESAID PLURALITY OF LOW PRESSURE REFORMING ZONES WITH PARTICLE-FORM SOLID PLATINUM-CONTAINING REFORMING CATALYST IN THE PRESENCE OF HYDROGEN UNDER REFORMING CONDITIONS OF TEMPERATURE, SPACE VELOCITY AND PRESSURE LESS THAN 500 P.S.I.G., REGULATING THE CATALYST-TO-NAPHTHA RATIO IN EACH OF THE AFORESAID LOW PRESSURE REFORMING ZONES TO OBTAIN A DIFFERENCE IN TEMPERTURE BVETWEEN THE TEMPERATURE OF THE VAPORS ENTERING EACH LOW PRESSURE REFORMING ZONE AND THE TEMPERATURE OF THE VAPORS LEAVING THE SAME LOW PRESSURE REFORMING ZONE AND TO OBTAIN A SUM IN DEGREES FAHRENHEIT OF THE AFORESAID DIFFERENCES IN TEMPERATURE FOR ALL OF THE AFORESAID LOW PRESSURE REFORMING ZONES NOT GREATER THAN THE NUMERICAL VALUE OF THE CONCENTRATION OF NAPHTHENES IN THE AFOESAID CHARGE NAPHTHA, WITHDRAWING FROM THE AFORESAID LAST LOW PRESSURE REFORMING ZONES A FINAL EFFLUENT COMPRISING HYDROGEN, AND C4 AND HEAVIER HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE AND RECOVERING FROM SAID FINAL EFFLUENT 10RVP GASOLINE HAVING ANOCTANE RATING OF 100 WITH A YIELD OF ABOUT 96 PERCENT TO ABOUT 110 WITH A YIELD OF ABOUT 76 PERCENT.

Claim 2

THE METHOD OF PRODUCING GASOLINE HAVING AN OCTANE RATING OF 100 TO ABOUT 110 WHICH COMPRISES ESTABLISHING A PLURALTIY OF HIGH PRESSURE REFORMING ZONES EACH CONTAINING PARTRICLE-FORM SOLID REFORMING CATALYST AND PIPED FOR SERIES FLOW OF FLUID REACTANT FROM THE FIRST HIGH PRESSURE REFORMING ZONE TO THE LAST HIGH PRESSURE REFORMING ZONE OF THE AFORESAID PLURALITY OF HIGH PRESSURE REFORMING ZONES, ESTABLISHING A PLURALITY OF LOW PRESSURE REFORMING ZONES EACH CONTAINING PARTICLE-FORM SOLID REFORMING CATALYST AND PIPED FOR SERIES FLOW OF FLUID REACTANT FROM THE FIRST LOW PRESSURE REFOMING ZONE TO THE LAST LOW PRESSURE REFORMING ZONE OF THE AFORESAID PLURALITY OF LOW PRESSURE REFORMING ZONES, INTRODUCING CHARGE NAPHTHA INTO THE AFORESAID FIRST HIGH PRESSURE REFORMING ZONE, CONTACTING SAID CHARGE NAPHTHA IN EACH OF THE AFORESAID PLURALITY OF HIGH PRESSURE REFORMING ZONES WITH THE AFORESAID PARTICLEFORM SOLID REFORMING CATALYST IN THE PRESENCE OF HYDROGEN UNDER REFORMING CONDITIONS OF TEMPERATURE, SPACE VELOCITY AND PRESSURE OF AT LEAST 500 P.S.I.G., REGULATING THE CATALYSTTO-NAPHTHA RATIO IN EACH OF THE AFORESAID HIGH PRESSURE REFORMING ZONES TO OBTAIN A DIFFERENCE IN TEMPERATURE BETWEEN THE TEMPERATURE OF THE VAPORS ENTERING EACH HIGH PRESSURE REFORMING ZONE AND THE TEMPERATURE OF THE VAPORS LEAVING THE SAME HIGH PRESSURE REFORMING ZONE AND TO OBTAIN A SUM IN DEGREES FAHRENHEIT OF THE AFORESAID DIFFERENCES IN TEMPERATURE FOR ALL OF THE AFORESAID HIGH PRESSURE REFORMING ZONES EQUAL TO AT LEAST TWICE THE NUMERICAL VALUE OF THE CONCENTRATION OF NAPHTHENES IN THE AFORESAID CHARGE NAPHTHA, WITHDRAWIGN THE AFORESAID LAST HIGH PRESSURE REFORMING ZONE A HIGH PRESSURE EFFLUENT COMPRISING HYDROGEN AND C1 ANDHEAVIER HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE, INTRODUCING AT LEAST THAT PORTION OF THE AFORESAID HIGH PRESSURE COMPRISING HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE AT A PRESSURE LESS THAN 500 P.S.I.G. INTO THE AFORESAID FIRST LOW PRESSURE REFORMIGN ZONE, CONTACTING THE AFORESAID PORTION OF THE AFORESAID HIGH PRESSURE EFFLUENT IN EACH OF THE LOW PRESSURE REFORMING ZONES OF THE AFOESAID PLURALITY OF LOW PRESSURE REFORMING ZONES WITH PARTICLE-FORM SOLID PLATINUM-CONTAINING REFORMING CATALYST IN THE PRESENCE OF HYDROGEN UNDER REFORMING CONDITIONS OF TEMPERATURE, SPACE VELOCITY AND PRESSURE LESS THAN 500 P.S.I.G., REGULATING THE CATALYST-TO-NAPHTHA RATIO IN EACH OF THE AFORESAID LOW PRESSURE REFORMING ZONES TO OBTAIN A DIFFERENCE IN TEMPERTURE BVETWEEN THE TEMPERATURE OF THE VAPORS ENTERING EACH LOW PRESSURE REFORMING ZONE AND THE TEMPERATURE OF THE VAPORS LEAVING THE SAME LOW PRESSURE REFORMING ZONE AND TO OBTAIN A SUM IN DEGREES FAHRENHEIT OF THE AFORESAID DIFFERENCES IN TEMPERATURE FOR ALL OF THE AFORESAID LOW PRESSURE REFORMING ZONES NOT GREATER THAN THE NUMERICAL VALUE OF THE CONCENTRATION OF NAPHTHENES IN THE AFOESAID CHARGE NAPHTHA, WITHDRAWING FROM THE AFORESAID LAST LOW PRESSURE REFORMING ZONES A FINAL EFFLUENT COMPRISING HYDROGEN, AND C4 AND HEAVIER HYDROCARBONS BOILING IN THE GASOLINE BOILING RANGE AND RECOVERING FROM SAID FINAL EFFLUENT 10RVP GASOLINE HAVING ANOCTANE RATING OF 100 WITH A YIELD OF ABOUT 96 PERCENT TO ABOUT 110 WITH A YIELD OF ABOUT 76 PERCENT.