2976.     ---------------.  [RUHRCHEMIE, A.-G.]  [Paraffin Synthesis With an Iron Catalyst.]  FIAT Reel L-5, July 1943, frames 184-190; PB 70,159; TOM Reel 299.

        Paraffin synthesis was carried out in a double-tube , 4.5-m. furnace with a filament grain (Fadenkorn) Fe catalyst; no details.  This catalyst is very well suited for the paraffin synthesis with circulation of the useful gas.  In order to maintain the desired conversion of CO+H₂ at about 70%, the temperature had to be raised from an initial 225° to about 245° after 45 days.  The yield of liquid products plus gasol was then about 124 gm. per N m.³ of useful gas, of which 50-60% was paraffin.  The average H₂:CO consumption ratio for this period was 1.26 corresponding virtually to the H₂:CO ratio in the water gas.  A pressure of 20 atm. was maintained throughout.