3360. SMITH, L. B., AND KREBS, R. W. (Standard Oil Development Co.). Hydrocarbon Synthesis Reaction. United States Patent 2,498,845, Feb. 28, 1950; appl. filed May 7, 1946, Serial No. 667,786; 5 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950, p. 46

PATENTS

3360. SMITH, L. B., AND KREBS, R. W. (Standard Oil Development Co.). Hydrocarbon Synthesis Reaction. United States Patent 2,498,845, Feb. 28, 1950; appl. filed May 7, 1946, Serial No. 667,786; 5 claims (Cl. 260-449.6). Chem. Abs., vol. 44, 1950, p. 4656.

Spent fluidized Fe catalyst is traced with H₂ at temperatures 600°-700° F. CH₄ is introduced to purge the catalyst of the H₂ used in the regeneration. Synthesis gas is added in gradually increasing amounts together with CH₂ under synthesizing conditions until the synthesis gas represents 100% of the fresh feed. In this way temperature is controlled during the start up of the reaction cycle and does not vary to any appreciable extent. 2 foreign and 3 United States patents cited.

SMITH, P. V. See abs. 315, 2339, 2407, 2408, 2409, 2410, 2412.