Method and system for using the carbon monoxide content of gases

Claim 1

IN A SYSTEM FOR USE IN THE CATALYTIC CRACKING OF PETROLEUM: A CATALYST REGEENERATOR; AN INDIRECT HEAT EXCHANGE PREHEATER; A FIRST MAIN CARBON MONOXIDE BURNING FURANCE; A SECOND MAIN CARBON MONOXIDE BURNING FURNACE; A FIRST AUXILIARY CARBON MONOXIDE BURNING HEATER; A SECOND AUXILIARY CARBON MONOXIDE BURNING HEATER; AN OIL CONDUIT EXTENDING FROM THE INDIRECT HEAT EXCHANGE PREHEATER; A FIRST OIL LINE AND A SECOND OIL LINE BRANCHING FROM THE OIL CONDUIT FOR FEEDING OIL INTO THE CENTRAL AREAS OF THE FIRST MAIN CARBON MONOXIDE BURNING FURNACE AND THE SECOND MAIN CARBON MONOXIDE BURNING FURNACE RESPECTIVELY; A FLUE GAS CONDUIT CONNECTED TO THE CATALYST REGENERATOR; A FIRST FLUE GAS LINE AND A SECOND FLUE GAS LINE BRANCHING FROM THE FLUE GAS CONDUIT AND EXTENDING INTO THE LOWER AREAS OF THE FIRST MAIN CARBON MONOXIDE BURNING FURNACE AND THE SECOND MAIN CARBON MONOXIDE BURNING FURNACE, RESPECTIVELY; A FIRST BYPASS LINE INTERCONNECTING THE FIRST FLUE GAS LINE AND THE FIRST AUXILIARY CARBON MONOXIDE BURNING HEATER; A SECOND BYPASS LINE INTERCONNECTING THE SECOND FLUE GAS LINE AND THE SECOND AUXILIARY CARBON MONOXIDE BURNING HEATER; MEANS ADAPTED TO CONTROL THE FLOW OF FLUE GAS TO THE TWO MAIN CARBON MONOXIDE BURNING FURNACES AND THE TWO AUXILIARY CARBON MONOXIDE BURNING HEATERS; HEATING COILS LOCATED IN THE UPPER AREA OF EACH OF THE MAIN CARBON MONOXIDE BURNING FURNACES; MEANS FOR DISCHARGING THE COMBUSTION PRODUCTS FROM THE FIRST AUXILIARY CARBON MONOXIDE BURNING HEATER INTO THE FIRST MAIN CARBON MONOXIDE BURNING FURNACE AT A POINT BELOW THE HEATING COILS AND ABOVE THE CENTRAL AREA; MEANS FOR DISCHARGING THE COMBUSTION PRODUCTS FROM THE SECOND AUXILIARY CARBON MONOXIDE BURNING HEATER INTO THE SECOND MAIN CARBON MONOXIDE BURNING FURNACE AT A POINT BELOW THE HEATING COILS AND ABOVE THE CENTRAL AREA; AND MEANS FOR FEEDING WATER TO SAID HEATING COILS FOR THE PRODUCTION OF STEAM THEREFROM.