335.    BRAUNKOHLE-BENZIN, A.-G.  [Improving the Effect of Cobalt Catalyst in Hydrocarbon Synthesis.]  German Patent Abridgments, vol. 64, 1943, p. 726; British Coal Utilisation and Research Assoc., Monthly Bull., vol. 8, 1944, abs. 8305. 

                  Addition of a relatively large amount of steam to the synthesis gas when starting up for the first time is claimed to have a beneficial effect upon the Co catalyst.