3847. ----- [VOORHIES, A.] (Standard Oil Development Co.). [Removing Carbon From Synthesis Catalysts.] French Patent 964,635, Aug. 21, 1950; appl. filed Apr. 13, 1948. Chem. Zentralb., 1951, I, p. 281.

C-coated catalysts are regenerated in a regeneration chamber which is continuous with the reaction chamber. The catalyst is in a suspended state in both chambers an circulates from one chamber to the other. The catalyst is kept suspended by a boiling gas stream. The temperature in the regenerating chamber is kept at a higher point than that in the reaction chamber.