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      667.  ------.  [FISCHER, F.]  [Hydrocarbons From Methane.]  German Patent 578,311, June 12, 1933; appl. F 66,881, filed Sept. 23, 1928 (Cl. 12 o-1.03).  FIAT Reel AA-90, frames 1,442-1,446; PB 70,275; Chem. Abs., vol. 27, 1933, p. 4239.

            CH4 is heated to >1,000º in a regenerative apparatus, which is alternatively heated by combustion gases and cooled by the CH4.  The period during which the CH4 is heated is preferably <1sec.  The apparatus should be lined and packed with material that does not promote the deposition of C. for example, silica gel C2H2, olefins, and liquid hydrocarbons of the benzene type are obtained.  Gives examples.