687. ------. [FISCHER, F., AND PICHLER, H.] Production of Hydrocarbons Having a High Carbon Content From Hydrocarbons Having a Low Carbon Content. United States Patent 1,940,209. Dec. 19, 1933: appl. filed July 15, 1931. Serial No. 551,052. in Germa

Patent Abstracts

687. ------. [FISCHER, F., AND PICHLER, H.] Production of Hydrocarbons Having a High Carbon Content From Hydrocarbons Having a Low Carbon Content. United States Patent 1,940,209. Dec. 19, 1933: appl. filed July 15, 1931. Serial No. 551,052. in Germany July 18, 1930: 9 claims (Cl. 260-170). British Chem. Abs., 1934. B. p. 917: Chem. Abs., vol. 28, 1934. p. 1353.

Aliphatic gaseous hydrocarbons are converted into hydrocarbons of higher C content, for example, CH₄→C₂H₂, by passing a mixture of the initial gas with O₂ in amount insufficient for complete combustion through a reaction zone at above 1,000º under conditions giving a reaction time of less than 0.01 sec. The products are cooled by admixture with cold gas immediately on leaving the hot reaction zone. The amount of O₂ used is preferably such that that ratio CO : H₂ in the resulting gas is approximately 1:2 so that after removal of the C₂H₂ the gas may be used for the synthesis of benzine.