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Patent Abstracts

      388.          ------.  [CLARK, A.]  (Phillips Petroleum Co.).  Synthesis of Hydrocarbons.  United States Patent 2,497,761.  Feb. 14, 1950; appl. filed Sept. 10, 1945, Aerial No. 615,348: 9 claims (Cl. 260-449.6).  Chem. Abs. Vol. 44, 1950, p. 4655.

Hydrocarbons are synthesized by reacting H2 and an oxide of C in presence of suitable catalyst and simultaneously contacting the products of reaction with excess vaporous hydrocarbons over and above those formed by the reaction.  The hydrocarbon, preferably an unsaturated, aliphate hydrocarbon, introduced into the reaction zone has 5-12 C atoms per mol.  A hydrocarbons mixture such as 25º-200º C. fraction from a cracking process or from the reaction itself may be used.  The hydrocarbon is volatized and passes through the reaction zone as a vapor.  The reaction may be alkalation or polymerization.  Consumption of H2 is not increased.  An example in which a fraction is recycled shows an increase of normally liquid hydrocarbons of 66% or more, 8 United States patents cited.