231.    ---------------. [ BERTHELOT, C.] [Extraction of Hydrogen From Coke-Oven Gas for use in the Manufacture of Synthetic Gasoline.]  Génie Civil, vol. 110, 1937, pp. 459-461; Chem. Abs., vol. 31, 1937, p. 7626.

                   Messer process is described with a drawing showing the operation.  A gas containing 98-99% H2 is obtained.