Process for a continuous separation of gases by adsorption utilizing fluidized and moving beds

Claim 1

A PROCESS FOR SEPARATING GASSES CONTINUOUSLY BY ADSORPTION WHICH COMPRISES DOWNWARDLY PASSING A GRANULAR ADSORBENT IN SERIES THROUGH A MULTI-STAGE FLUIDIZED BED COOLING AND ADSORBING ZONE, A MOVING-BED CONCENTRATING ZONE, A FLUIDIZED BED HEATING ZONE AND A MOVING-BED STRIPPING ZONE; COOLING THE ADSORBENT AND AT THE SAME TIME ADSORBING AT LEAST ONE DESIRED COMPONENT ON THE ADSORBENT FROM A FEED-GAS MIXTURE WHICH IS INTRODUCED INTO THE COOLING AND ADSORBING ZONE AT THE BOTTOM THEREOF AND REMOVED AT THE TOP THEREOF AND BEING OF SUFFICIENT VELOCITY TO FLUIDIZE THE FLOW OF ADSORBENT THEREIN AND FLOWS COUNTER-CURRENT TO SAID ADSORBENT IN SAID COOLING AND ADSORBING ZONE; INCREASING THE CONCENTRATION OF THE DESIRED COMPONENT ON THE ADSORBENT IN SAID CONCENTRATING ZONE BY INTRODUCING A REFLUX GAS INTO SAID ZONE; CIRCULATING A HOT INERT GAS AT A SUFFICIENT VELOCITY IN SAID FLUIDIZED BED HEATING ZONE TO FLUIDIZE AND HEAT THE ADSORBENT FLOWING THEREIN AND THEN STRIPPING THE DESIRED COMPONENT COMPLETELY IN THE MOVING-BED STRIPPING ZONE BY PASSING A STRIPPING GAS INTO THE BOTTOM OF SAID MOVING BED STRIPPING ZONE; WITHDRAWING A GAS MIXTURE OF THE DESORBED DESIRED COMPONENT AND THE STRIPPING GAS FROM SAID MOVING BED STRIPPING ZONE: AND SEPARATING THE STRIPPING GAS FROM THE DESIRED COMPONENT WHILE RETURNING A PART OF THE DESIRED COMPONENT THUS SEPARATED INTO THE MOVING BED CONCENTRATING ZONE AS THE REFLUX GAS.