1992. LANNING, W. C. (Phillips Petroleum Co.). Hydrocarbon Synthesis Process. United States Patent 2,573,795, Nov. 6, 1951; appl. filed Aug. 16, 1948. Serial No. 44,447; 8 claims (Cl. 260-449.6).

Describes a method for synthesizing hydrocarbons and oxygenated organic compounds by passing a CO:H₂ mixture in the ratio of 1:1 to 1:3 through a fluidized bed of catalyst at suitable reaction conditions and for simultaneously effecting regeneration of the catalyst. The reactor consists of a single, vertical, elongated chamber in which 2 zones of differing temperature conditions are maintained, the lower comprising at least ½ of the catalyst bed wherein the temperature is from 290°-340° and suitable for the synthesis reaction, and the upper having a temperature of 300°-500° suitable for the regeneration. The temperature in the upper or regenerating zone is maintained at a suitable level by introducing fresh synthesis gas or additional H₂-rich gas such as tail gas from the process. The agitation and turbulence of the fluidized bed causes a constant interchange of catalyst particles between the 2 zones, whereby the synthesis reaction and the regeneration of the catalyst are effected simultaneously.