2981.     ---------------.  [RUHRCHEMIE, A.-G.]  [Hydrogenation of Carbon Monoxide at Normal Pressure With Addition of Acetylene or of Acetylene and Ethylene.]  FIAT Reel L-5, 1942, frames 536-543; PB 70,159; TOM Reel 299.

        Tests revealed that with the addition of C₂H₂ and C₂H₄ at normal pressure a highly olefinic product can be obtained in a comparatively simple manner.  A further advantage is that the apparatus used in the normal pressure synthesis needs no alteration for this method.