387. ------. [CLARK, A.] (Phillips Petroleum Co.). Synthesis of Hydrocarbons. United States Patent 2,486,633, Nov. 1, 1949; appl. filed Sept. 10, 1945, Serial No. 615,349: 4 claims (Cl. 260-449.6) Chem. Abs., vol. 44, 1950. p. 1674.

Patent Abstracts

387. ------. [CLARK, A.] (Phillips Petroleum Co.). Synthesis of Hydrocarbons. United States Patent 2,486,633, Nov. 1, 1949; appl. filed Sept. 10, 1945, Serial No. 615,349: 4 claims (Cl. 260-449.6) Chem. Abs., vol. 44, 1950. p. 1674.

Alcohol, preferably methyl or ethyl, is used for thermal control in hydrocarbon synthesis. The alcohol enters the reaction zone adjacent to the synthesis gas and at points in the direction of flow through the reaction zone. The vaporization of the alcohol absorbs heat evolved during the synthesis. The alcohol is used in combination with external cooling means. With methyl alcohol 0.002-0.003 lb. alcohol per B. t. u. of heat to be removed is used and with ethyl alcohol 0.0025-0.0035 lb. is used. The reaction chambers are considerably larger in diameter than those normally used in hydrogenation of CO. Example: CO: H:: 1:2 at 225º C. and 100 p. s. i. is reacted using Co-Th catalyst. Approximately ½ of the heat of reaction is removed by passing mineral seal oil around the reaction chamber. 6.5 lb. methyl alcohol per lb. of normally liquid hydrocarbon formed is introduced into the reaction chamber. 6.5 lb. methyl alcohol per lb. of normally liquid hydrocarbon formed is introduced into the reaction chamber adjacent to the entering gas to hold the temperature at 225º. The effluent is condensed and the products separated. The alcohol is recycled. The hydrocarbon fraction analyzed about 75% or more normally liquid hydrocarbons. 1 literature ref. And 7 United States patents cited.