386. ------. [CLARK, A.] (Phillips Petroleum Co.). Synthesis of Hydrocarbons. United States Patent 2,450,500. Oct. 5, 1948: appl. filed Sept. 5, 1945, Serial No. 614,578: 7 claims (Cl. 260-449.6). Chem. Abs., vol. 43, 1949. p. 839.

Patent Abstracts

386. ------. [CLARK, A.] (Phillips Petroleum Co.). Synthesis of Hydrocarbons. United States Patent 2,450,500. Oct. 5, 1948: appl. filed Sept. 5, 1945, Serial No. 614,578: 7 claims (Cl. 260-449.6). Chem. Abs., vol. 43, 1949. p. 839.

Synthesis gas H₂:CO=3:2 at a pressure of 200 p. s. i. is preheated to 180º C., then made to flow downward through tubes, 3 in. inside diameter, 10 ft. long, connected in parallel. Each tube is packed with 3 different layers of catalyst. The progressive order upward is sintered Fe, 4 ft:Fe, 3 ft,:Co-Th, 3 ft. The space velocity is maintained at 150 vol. Per vol. of catalyst per hr. The reactants and products become hotter as they flow downward. The temperature at the Co-Th and Fe junction is 205º C. and at the Fe-sintered Fe junction 260º C. The effluent gas is 320º C. A liquid mineral seal oil flows upward outside of the tubes countercurrent to the gas flow. The rate of flow is adjusted to maintain the catalyst junction temperatures. 70% conversion takes place representing a light hydrocarbon fraction, 86 wt. %, heavier fraction, 14 wt. %. Various combinations of catalysts may be used. 1 literature ref. And 3 United States patents cited.