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Patent Abstracts

      1022.  ------ [HERBERT, W.].  (American Lurgi Corp.).  Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.  United States Patent 2,224,049, Dec. 3, 1940; appl. filed Nov. 24, 1937, Serial No. 176,374, in Germany Nov. 30, 1936; 8 claims (Cl. 260-449). Chem. Abs., vol. 35, 1941, p. 1970.

            Describes apparatus and a process similar to the United States Patent 2,224,048 (abs. 1021) in which the end gas from the catalytic conversion is recirculated after separation from it of at least part of the H₂O and hydrocarbons formed by the conversion in sufficient quantities that the partial pressure of the liquefiable hydrocarbons formed in the hot gases, leaving the catalytic agents and which have a higher critical temperature than the temperature employed in the catalytic conversion, is maintained below 0.2Öp, wherein p designates the positive pressure in atmospheres applies during the conversion.