nathan

Claim 1

A UNITARY FOR EFFECTING A CHEMICAL REACTION IN THE PRESENCE OF FINELY DIVIDED FLUIDIZED CONTACT MATERIAL COMPRISING IN COMBINATION A FIRST FLUIDIZED MATERIAL CONTACT ZONE IN THE BOTTOM OF SAID VESSEL, A PLURALITY OF ADJACENTLY POSITIONED ELONGATED SUBSTANTIALLY VERTICAL PASSAGEWAYS DISPOSED IN THE LOWER PORTION OF SAID VESSEL ABOVE SAID FIRST CONTACT ZONE, SAID PASSAGEWAYS SURROUNDED BY A HEAT EXCHANGE MEDIUM, AN ENLARGED REACTION ZONE POSITIONED ABOVE AND IN OPEN COMMUNICATION WITH SAID PLURALITY OF PASSAGEWAYS, SAID ENLARGED REACTION ZONE OF SUFFICIENT SIZE TO MAINTAIN A DENSE FLUIDIZED BED OF CONTACT MATERIAL IN THE LOWER PORTION THEREOF IN COMMUNICATION WITH THE TOP OF SAID PASSAGEWAYS AND A DILUTE PHASE OF CONTACT MATERIAL IN THE UPPER PORTION OF SAID ENLARGED REACTION ZONE, A STRIPPING CHAMBER POSITIONED ABOVE SAID REACTION ZONE, A FIRST CONDUIT MEANS EXTENDING FROM THE LOWER PORTION OF SAID REACTION ZONE INTO SAID STRIPPING ZONE, A SECOND CONDUIT MEANS EXTENDING FROM THE UPPER PORTION OF SAID STRIPPING CHAMBER TO THE LOWER PORTION OF SAID REACTION ZONE, A THIRD CONDUIT IN OPEN COMMUNICATION WITH THE UPPER PORTION OF SAID STRIPPING CHAMBER AND SAID REACTION ZONE, A FOURTH CONDUIT MEANS CONNECTING THE UPPER PORTION OF SAID DENSE FLUIDIZED BED IN SAID REACTION ZONE WITH SAID FIRST CONTACT ZONE, MEANS FOR INTRODUCING REACTANTS TO SAID FIRST CONTACT ZONE , MEANS FOR INTRODUCING FINELY DIVIDED CONTACT MATERIAL TO SAID FIRST CONTACT ZONE, MEANS FOR PASSING REACTANTS IN A DILUTE SUSPENSION OF CONTACT MATERIAL FROM SAID CONTACT ZONE UPWARDLY THROUGH SAID ELONGATED PASSAGEWAYS INTO SAID DENSE FLUIDIZED BED, MEANS FOR REMOVING PRODUCTS OF REACTION FROM THE UPPER PORTION OF SAID REACTION ZONE, MEANS FOR INTRODUCING STRIPPING GAS TO THE LOWER PORTION OF SAID STRIPPING ZONE AND MEANS FOR RETURNING STRIPPED CONTACT MATERIAL FROM SAID STRIPPING ZONE TO SAID FIRST CONTACT ZONE.