Process for the synthesis of hydrocarbons from carbon monoxide and hydrogen

Claim 1

AN IMPROVED PROCESS FOR THE CATALYTIC SYNTHESIS OF NORMALLY LIQUID HYDROCARBONS FROM CO AND H2 WHICH COMPRISES CONTACTING A SYNTHESIS GAS MIXTURE CONTAINING CO AND H2 WITH A DENSE, TURBULENT, FLUIDIZED MASS OF FINELY DIVIDED SOLIDS CONTAINING ANIRON GROUP METAL HAVING SYNTHESIZING ACTIVITY IN A FIRST REACTION ZONE AT CONDITIONS OF TEMPERATURE AND PRESSURE SUITABLE FOR THE FORMATION OF A VAPOROUS CARBONYL COMPOUND OF SAID MEAL, DOWNWARDLY WITHDRAWING AND RECOVERING SPENT SOLIDS FROM SAID MASS, WITHDRAWING A MIXTURE OF METAL CARBONYL VAPORS AND RESIDUAL SYNTHESIS GAS UPWARDLY FROM SAID MASS, CONTACTING SAID MIXTURE WITH A SECOND DENSE, TURBULENT, FLUIDIZED MASS OF A SUBSTANTIALLY INACTIVE CARRIER MATERIAL HAVING A FLUIDIZABLE PARTICLE SIZE AND A HIGH DISINTEGRATION RESISTANCE MAINTAINED IN A SECOND REACTION ZONE AT SYNTHESIS CONDITIONS OF TEMPERATURE AND PRESSURE CONDUCIVE TO THE DECOMPOSITION OF SAID CARBONYL COMPOUND INTO CO AND SAID METAL AND THE DEPOSITION OF SAID METAL ON SAID CARRIER, WITHDRAWING A STREAM OF CARRIER MATERIAL DOWNWARDLY FROM SAID SECOND MASS, WITHDRAWING VAPOROUS SYNTHETIC PRODUCTS UPWARDLY FROM SAID SECOND MASS, COOLING AT LEAST A PORTION OF SAID WITHDRAWN STREAM OF CARRIER MATERIAL, CONTACTING SAID WITHDRAWN MIXTURE OF METAL CARBONYL VAPORS AND RESIDUAL SYNTHESIS GAS PRIOR TO ITS ENTRY INTO SAID SECOND REACTION ZONE WITH SAID COOLED STREAM OF CARRIER MATERIAL TO FORM A SOLIDSIN-GAS SUSPENSION AND TO ABSORB SAID METAL CARBONYL VAPORS UNIFORMLY IN SAID COOLED STREAM AND SUPPLYING SAID SUSPENSION TO SAID SECOND REACTION ZONE.